def play(action) -> str:
    return f"""library {action} DATABASE [optional args]

    Control playback:
        To stop playback press Ctrl-C in either the terminal or mpv

        Or use `lb next` or `lb stop`

        Or create global shortcuts in your desktop environment by
        sending commands to mpv_socket:
        echo 'playlist-next force' | socat - /tmp/mpv_socket

    Print an aggregate report of deleted media
        -w time_deleted!=0 -pa
        path         count  duration               size
        ---------  -------  ------------------  -------
        Aggregate      337  2 days and 5 hours  1.6 GiB

    Print an aggregate report of media that has no duration information (ie.
    online media or corrupt local media)
        -w 'duration is null' -pa

    Print a list of filenames which have below 1280px resolution
        -w 'width<1280' -pf

    View how much time you have played
        -w play_count'>'0 -pa

    View all the columns
        -p -L 1 --cols '*'

    Open ipython with all of your media
        -vv -p --cols '*'
        ipdb> len(media)
        462219
"""


watch = play("watch")

stats = """library stats DATABASE TIME_COLUMN

    View watched stats

        $ library stats video.db --completed

    View download stats

        $ library stats video.db time_downloaded --frequency daily

        See also: library stats video.db time_downloaded -f daily --hide-deleted

    View deleted stats

        $ library stats video.db time_deleted

    View time_modified stats

        $ library stats example_dbs/web_add.image.db time_modified -f year
        Time_Modified media:
        year      total_size    avg_size    count
        ------  ------------  ----------  -------
        2010         4.4 MiB     1.5 MiB        3
        2011       136.2 MiB    68.1 MiB        2
        2013         1.6 GiB    10.7 MiB      154
        2014         4.6 GiB    25.2 MiB      187
        2015         4.3 GiB    26.5 MiB      167
        2016         5.1 GiB    46.8 MiB      112
        2017         4.8 GiB    51.7 MiB       95
        2018         5.3 GiB    97.9 MiB       55
        2019         1.3 GiB    46.5 MiB       29
        2020        25.7 GiB   113.5 MiB      232
        2021        25.6 GiB    96.5 MiB      272
        2022        14.6 GiB    82.7 MiB      181
        2023        24.3 GiB    72.5 MiB      343
        2024        17.3 GiB   104.8 MiB      169
        14 media
"""

download = r"""library download [--prefix /mnt/d/] [--safe] [--subs] [--auto-subs] [--small] DATABASE --video | --audio | --photos

    Files will be saved to <lb download prefix>/<extractor>/. The default prefix is the current working directory.

    By default things will download in a random order

        library download dl.db --prefix ~/output/path/root/

    But you can sort; eg. oldest first

        library download dl.db -u m.time_modified,m.time_created

    Limit downloads to a specified playlist URLs

        library fs video.db --to-json --playlists https://www.youtube.com/c/BlenderFoundation/videos | library download --video video.db --from-json -

    Limit downloads to a specified video URLs or substring

        library download dl.db --include https://www.youtube.com/watch?v=YE7VzlLtp-4
        library download dl.db -s https://www.youtube.com/watch?v=YE7VzlLtp-4  # equivalent

    Maximizing the variety of subdomains

        library download photos.db --photos --image --sort "ROW_NUMBER() OVER ( PARTITION BY SUBSTR(m.path, INSTR(m.path, '//') + 2, INSTR( SUBSTR(m.path, INSTR(m.path, '//') + 2), '/') - 1) )"

    Print list of queued up downloads

        library download --print

    Print list of saved playlists

        library playlists dl.db -p a

    Print download queue groups

        library download-status audio.db

    Broadcatching absolution
"""

block = r"""library block DATABASE URLS ...

    Blocklist specific URLs (eg. YouTube channels, etc)

        library block dl.db https://annoyingwebsite/etc/

    Or URL substrings

        library block dl.db "%%fastcompany.com%%"

    Block videos from the playlist uploader

        library block dl.db --match-column playlist_path 'https://youtube.com/playlist?list=PLVoczRgDnXDLWV1UJ_tO70VT_ON0tuEdm'

    Or other columns

        library block dl.db --match-column title "%% bitcoin%%"
        library block dl.db --force --match-column uploader Zeducation

    Display subdomains (similar to `lb download-status`)

        library block audio.db
        subdomain              count    new_links    tried  percent_tried      successful  percent_successful      failed  percent_failed
        -------------------  -------  -----------  -------  ---------------  ------------  --------------------  --------  ----------------
        dts.podtrac.com         5244          602     4642  88.52%%                    690  14.86%%                    3952  85.14%%
        soundcloud.com         16948        11931     5017  29.60%%                    920  18.34%%                    4097  81.66%%
        twitter.com              945          841      104  11.01%%                      5  4.81%%                       99  95.19%%
        v.redd.it               9530         6805     2725  28.59%%                    225  8.26%%                     2500  91.74%%
        vimeo.com                865          795       70  8.09%%                      65  92.86%%                       5  7.14%%
        www.youtube.com       210435       140952    69483  33.02%%                  66017  95.01%%                    3467  4.99%%
        youtu.be               60061        51911     8150  13.57%%                   7736  94.92%%                     414  5.08%%
        youtube.com             5976         5337      639  10.69%%                    599  93.74%%                      40  6.26%%

    Find some words to block based on frequency / recency of downloaded media

        library watch dl.db -u time_downloaded desc -L 10000 -pf | lb nouns | sort | uniq -c | sort -g
        ...
        183 ArchiveOrg
        187 Documentary
        237 PBS
        243 BBC
        ...
"""

fs_add = """library fs-add [(--video) | --audio | --image |  --text | --filesystem] DATABASE PATH ...

    The default database type is video:
        library fsadd tv.db ./tv/
        library fsadd --video tv.db ./tv/  # equivalent

    You can also create audio databases. Both audio and video use ffmpeg to read metadata:
        library fsadd --audio audio.db ./music/

    Image uses ExifTool:
        library fsadd --image image.db ./photos/

    Text will try to read files and save the contents into a searchable database:
        library fsadd --text text.db ./documents_and_books/

    Create a text database and scan with OCR and speech-recognition:
        library fsadd --text --ocr --speech-recognition ocr.db ./receipts_and_messages/

    Create a video database and read internal/external subtitle files into a searchable database:
        library fsadd --scan-subtitles tv.search.db ./tv/ ./movies/

    Decode media to check for corruption (slow):
        library fsadd --check-corrupt
        # See media-check command for full options

    Normally only relevant filetypes are included. You can scan all files with this flag:
        library fsadd --scan-all-files mixed.db ./tv-and-maybe-audio-only-files/
        # I use that with this to keep my folders organized:
        library watch -w 'video_count=0 and audio_count>=1' -pf mixed.db | parallel mv {} ~/d/82_Audiobooks/

    Remove path roots with --force
        library fsadd audio.db /mnt/d/Youtube/
        [/mnt/d/Youtube] Path does not exist

        library fsadd --force audio.db /mnt/d/Youtube/
        [/mnt/d/Youtube] Path does not exist
        [/mnt/d/Youtube] Building file list...
        [/mnt/d/Youtube] Marking 28932 orphaned metadata records as deleted

    If you run out of RAM, for example scanning large VR videos, you can lower the number of threads via --threads

        library fsadd vr.db --delete-unplayable --check-corrupt --full-scan-if-corrupt 15%% --delete-corrupt 20%% ./vr/ --threads 3

    Move files on import

        library fsadd audio.db --move ~/library/ ./added_folder/
        This will run destination paths through `library christen` and move files relative to the added folder root
"""

fs_update = """library fs-update DATABASE

    Update each path previously saved:

        library fsupdate video.db
"""

places_import = """library places-import DATABASE PATH ...

    Load POIs from Google Maps Google Takeout
"""

hn_add = """library hn-add [--oldest] DATABASE

    Fetch latest stories first:

        library hnadd hn.db -v
        Fetching 154873 items (33212696 to 33367569)
        Saving comment 33367568
        Saving comment 33367543
        Saving comment 33367564
        ...

    Fetch oldest stories first:

        library hnadd --oldest hn.db
"""

tildes = """library tildes DATABASE USER

    Backup tildes.net user comments and topics

        library tildes tildes.net.db xk3

    Without cookies you are limited to the first page. You can use cookies like this:
        https://github.com/rotemdan/ExportCookies
        library tildes tildes.net.db xk3 --cookies ~/Downloads/cookies-tildes-net.txt
"""

substack = """library substack DATABASE PATH ...

    Backup substack articles
"""

reddit_add = """library reddit-add [--lookback N_DAYS] [--praw-site bot1] DATABASE URLS ...

    Fetch data for redditors and reddits:

        library redditadd interesting.db https://old.reddit.com/r/coolgithubprojects/ https://old.reddit.com/user/Diastro

    If you have a file with a list of subreddits you can do this:

        library redditadd 96_Weird_History.db --subreddits (cat ~/mc/96_Weird_History-reddit.txt)

    Likewise for redditors:

        library redditadd shadow_banned.db --redditors (cat ~/mc/shadow_banned.txt)

    Note that reddit's API is limited to 1000 posts and it usually doesn't go back very far historically.
    Also, it may be the case that reddit's API (praw) will stop working in the near future. For both of these problems
    my suggestion is to use pushshift data.
    You can find more info here: https://github.com/chapmanjacobd/reddit_mining#how-was-this-made
"""

reddit_update = """library reddit-update [--audio | --video] [--lookback N_DAYS] [--praw-site bot1] DATABASE

    Fetch the latest posts for every subreddit/redditor saved in your database

        library redditupdate edu_subreddits.db
"""

search = """library search DATABASE QUERY

    Search text databases and subtitles

        library search fts.db boil
            7 captions
            /mnt/d/70_Now_Watching/DidubeTheLastStop-720p.mp4
               33:46 I brought a real stainless steel boiler
               33:59 The world is using only stainless boilers nowadays
               34:02 The boiler is old and authentic
               34:30 - This boiler? - Yes
               34:44 I am not forcing you to buy this boiler…
               34:52 Who will give her a one liter stainless steel boiler for one Lari?
               34:54 Glass boilers cost two

    Search and open file

        library search fts.db 'two words' --open
"""

history_add = """library history-add DATABASE PATH ...

    Add history

        $ library history-add links.db $urls $paths
        $ library history-add links.db (cb)

    Items that don't already exist in the database will be counted under "skipped"

"""

history = """library history [--frequency daily weekly (monthly) yearly] [--limit LIMIT] DATABASE [(all) watching watched created modified deleted]

    View playback history

        $ library history web_add.image.db
        In progress:
        play_count  time_last_played    playhead    path                                     title
        ------------  ------------------  ----------  ---------------------------------------  -----------
                0  today, 20:48        2 seconds   https://siliconpr0n.org/map/COPYING.txt  COPYING.txt

    Show only completed history

        $ library history web_add.image.db --completed

    Show only completed history

        $ library history web_add.image.db --in-progress

    Delete history

        Delete two hours of history
        $ library history web_add.image.db --played-within '2 hours' -L inf --delete-rows

        Delete all history
        $ library history web_add.image.db -L inf --delete-rows

    See also: library stats -h
              library history-add -h
"""

playlists = """library playlists DATABASE

    List of Playlists

        library playlists

    Search playlists

        library playlists audio.db badfinger
        path                                                        extractor_key    title                             count
        ----------------------------------------------------------  ---------------  ------------------------------  -------
        https://music.youtube.com/channel/UCyJzUJ95hXeBVfO8zOA0GZQ  ydl_Youtube      Uploads from Badfinger - Topic      226

    Aggregate Report of Videos in each Playlist

        library playlists -p a


    Print only playlist urls:
        Useful for piping to other utilities like xargs or GNU Parallel.
        library playlists -p f
        https://www.youtube.com/playlist?list=PL7gXS9DcOm5-O0Fc1z79M72BsrHByda3n

    Remove a playlist/channel and all linked videos:
        library playlists --delete-rows https://vimeo.com/canal180

"""

download_status = """library download-status DATABASE

    Print download queue groups

        library download-status video.db

    Simulate --safe flag

        library download-status video.db --safe
"""

tabs_open = """library tabs-open DATABASE

    Tabs is meant to run **once per day**. Here is how you would configure it with `crontab`:

        45 9 * * * DISPLAY=:0 library tabs /home/my/tabs.db

    If things aren't working you can use `at` to simulate a similar environment as `cron`

        echo 'fish -c "export DISPLAY=:0 && library tabs /full/path/to/tabs.db"' | at NOW

    You can also invoke tabs manually:

        library tabs -L 1  # open one tab

    Print URLs

        library tabs -w "frequency='yearly'" -p

    View how many yearly tabs you have:

        library tabs -w "frequency='yearly'" -p a

    Delete URLs

        library tabs -p -s cyber
        ╒═══════════════════════════════════════╤═════════════╤══════════════╕
        │ path                                  │ frequency   │ time_valid   │
        ╞═══════════════════════════════════════╪═════════════╪══════════════╡
        │ https://old.reddit.com/r/cyberDeck/to │ yearly      │ Dec 31 1970  │
        │ p/?sort=top&t=year                    │             │              │
        ├───────────────────────────────────────┼─────────────┼──────────────┤
        │ https://old.reddit.com/r/Cyberpunk/to │ yearly      │ Aug 29 2023  │
        │ p/?sort=top&t=year                    │             │              │
        ├───────────────────────────────────────┼─────────────┼──────────────┤
        │ https://www.reddit.com/r/cyberDeck/   │ yearly      │ Sep 05 2023  │
        ╘═══════════════════════════════════════╧═════════════╧══════════════╛

        library tabs -p -w "path='https://www.reddit.com/r/cyberDeck/'" --delete-rows
        Removed 1 metadata records

        library tabs -p -s cyber
        ╒═══════════════════════════════════════╤═════════════╤══════════════╕
        │ path                                  │ frequency   │ time_valid   │
        ╞═══════════════════════════════════════╪═════════════╪══════════════╡
        │ https://old.reddit.com/r/cyberDeck/to │ yearly      │ Dec 31 1970  │
        │ p/?sort=top&t=year                    │             │              │
        ├───────────────────────────────────────┼─────────────┼──────────────┤
        │ https://old.reddit.com/r/Cyberpunk/to │ yearly      │ Aug 29 2023  │
        │ p/?sort=top&t=year                    │             │              │
        ╘═══════════════════════════════════════╧═════════════╧══════════════╛
"""

tabs_add = r"""library tabs-add [--frequency daily weekly (monthly) quarterly yearly] [--no-sanitize] DATABASE URLS ...

    Adding one URL:

        library tabsadd -f daily tabs.db https://wiby.me/surprise/

        Depending on your shell you may need to escape the URL (add quotes)

        If you use Fish shell know that you can enable features to make pasting easier:
            set -U fish_features stderr-nocaret qmark-noglob regex-easyesc ampersand-nobg-in-token

        Also I recommend turning Ctrl+Backspace into a super-backspace for repeating similar commands with long args:
            echo 'bind \b backward-kill-bigword' >> ~/.config/fish/config.fish

    Importing from a line-delimitated file:

        library tabsadd -f yearly -c reddit tabs.db (cat ~/mc/yearly-subreddit.cron)

"""

tabs_shuffle = """library tabs-shuffle DATABASE

    Moves each tab to a random day-of-the-week by default

    It may also be useful to shuffle monthly tabs, etc. You can accomplish this like so:

        library tabs-shuffle tabs.db -d  31 -f monthly
        library tabs-shuffle tabs.db -d  90 -f quarterly
        library tabs-shuffle tabs.db -d 365 -f yearly
"""

tube_add = r"""library tube-add [--safe] [--extra] [--subs] [--auto-subs] DATABASE URLS ...

    Create a dl database / add links to an existing database

        library tubeadd dl.db https://www.youdl.com/c/BranchEducation/videos

    Add links from a line-delimited file

        cat ./my_yt_subscriptions.txt | library tubeadd reddit.db -

    Add metadata to links already in a database table

        library tubeadd --force reddit.db (sqlite-utils --raw-lines reddit.db 'select path from media')

    Fetch extra metadata:

        By default tubeadd will quickly add media at the expense of less metadata.
        If you plan on using `library download` then it doesn't make sense to use `--extra`.
        Downloading will add the extra metadata automatically to the database.
        You can always fetch more metadata later via tubeupdate:
        library tube-update tw.db --extra
"""

tube_update = """library tube-update [--audio | --video] DATABASE

    Fetch the latest videos for every playlist saved in your database

        library tubeupdate educational.db

    Fetch extra metadata:

        By default tubeupdate will quickly add media.
        You can run with --extra to fetch more details: (best resolution width, height, subtitle tags, etc)

        library tubeupdate educational.db --extra https://www.youtube.com/channel/UCBsEUcR-ezAuxB2WlfeENvA/videos

    Remove duplicate playlists:

        lb dedupe-db video.db playlists --bk extractor_playlist_id
"""

gallery_add = """library gallery-add DATABASE URLS

    Add gallery_dl URLs to download later or periodically update

    If you have many URLs use stdin

        cat ./my-favorite-manhwa.txt | library galleryadd your.db --insert-only -
"""

gallery_update = """library gallery-update DATABASE URLS

    Check previously saved gallery_dl URLs for new content
"""

big_dirs = """library big-dirs DATABASE [--limit (4000)] [--depth (0)] [--sort-groups-by deleted | played] [--size=+5MB]

    See what folders take up space

        library big-dirs ./video/

    Filter folders by size

        lb big-dirs ./video/ -FS+10GB -FS-200GB

    Filter folders by count

        lb big-dirs ./video/ -FC+300 -FC-5000

    Filter folders by depth

        lb big-dirs ./video/ --depth 5
        lb big-dirs ./video/ -D 7

    Load from fs database

        $ lb fs video.db --cols path,duration,size,time_deleted --to-json | lb big-dirs --from-json

    You can even sort by auto-MCDA ~LOL~

    lb big-dirs ./video/ -u 'mcda median_size,-deleted'
"""

disk_usage = """library disk-usage DATABASE [--sort-groups-by size | count] [--depth DEPTH] [PATH / SUBSTRING SEARCH]

    Only include files smaller than 1kib

        library disk-usage du.db --size=-1Ki
        lb du du.db -S-1Ki
        | path                                  |      size |   count |
        |---------------------------------------|-----------|---------|
        | /home/xk/github/xk/lb/__pycache__/    | 620 Bytes |       1 |
        | /home/xk/github/xk/lb/.github/        |    1.7 kB |       4 |
        | /home/xk/github/xk/lb/__pypackages__/ |    1.4 MB |    3519 |
        | /home/xk/github/xk/lb/xklb/           |    4.4 kB |      12 |
        | /home/xk/github/xk/lb/tests/          |    3.2 kB |       9 |
        | /home/xk/github/xk/lb/.git/           |  782.4 kB |    2276 |
        | /home/xk/github/xk/lb/.pytest_cache/  |    1.5 kB |       5 |
        | /home/xk/github/xk/lb/.ruff_cache/    |   19.5 kB |     100 |
        | /home/xk/github/xk/lb/.gitattributes  | 119 Bytes |         |
        | /home/xk/github/xk/lb/.mypy_cache/    | 280 Bytes |       4 |
        | /home/xk/github/xk/lb/.pdm-python     |  15 Bytes |         |

    Only include files with a specific depth

        library disk-usage du.db --depth 19
        lb du du.db -d 19
        | path                                                                                                                                                                |     size |
        |---------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------|
        | /home/xk/github/xk/lb/__pypackages__/3.11/lib/jedi/third_party/typeshed/third_party/2and3/requests/packages/urllib3/packages/ssl_match_hostname/__init__.pyi        | 88 Bytes |
        | /home/xk/github/xk/lb/__pypackages__/3.11/lib/jedi/third_party/typeshed/third_party/2and3/requests/packages/urllib3/packages/ssl_match_hostname/_implementation.pyi | 81 Bytes |

"""

christen = """library christen [--run]

    Rename files to be somewhat normalized

    Default mode is simulate

        library christen ~/messy/

    To actually do stuff use the run flag

        library christen . --run

    You can optionally replace all the spaces in your filenames with dots

        library christen --dot-space
"""

cluster_sort = """library cluster-sort [input_path | stdin] [output_path | stdout]

    Group lines of text into sorted output

        echo 'red apple
        broccoli
        yellow
        green
        orange apple
        red apple' | library cluster-sort

        orange apple
        red apple
        red apple
        broccoli
        green
        yellow

    Show the groupings

        echo 'red apple
        broccoli
        yellow
        green
        orange apple
        red apple' | library cluster-sort --print-groups

        [
            {'grouped_paths': ['orange apple', 'red apple', 'red apple']},
            {'grouped_paths': ['broccoli', 'green', 'yellow']}
        ]

    Auto-sort images into directories

        echo 'image1.jpg
        image2.jpg
        image3.jpg' | library cluster-sort --image --move-groups

    Print similar paths

        library fs 0day.db -pa --cluster --print-groups

"""

copy_play_counts = """library copy-play-counts DEST_DB SOURCE_DB ... [--source-prefix x] [--target-prefix y]

    Copy play count information between databases

        library copy-play-counts audio.db phone.db --source-prefix /storage/6E7B-7DCE/d --target-prefix /mnt/d
"""
dedupe_media = """library dedupe-media [--audio | --id | --title | --filesystem] [--only-soft-delete] [--limit LIMIT] DATABASE

    Dedupe your files (not to be confused with the dedupe-db subcommand)

    Exact file matches

        library dedupe-media --fs video.db

    Dedupe based on duration and file basename or dirname similarity

        library dedupe-media video.db --duration --basename -s release_group  # pre-filter with a specific text substring
        library dedupe-media video.db --duration --basename -u m1.size  # sort such that small files are treated as originals and larger files are deleted
        library dedupe-media video.db --duration --basename -u 'm1.size desc'  # sort such that large files are treated as originals and smaller files are deleted

    Dedupe online against local media

        library dedupe-media --compare-dirs video.db / http
"""

dedupe_czkawka = """library dedupe-czkawka [--volume VOLUME] [--auto-seek] [--ignore-errors] [--folder] [--folder-glob [FOLDER_GLOB]] [--replace] [--no-replace] [--override-trash OVERRIDE_TRASH] [--delete-files] [--gui]
               [--auto-select-min-ratio AUTO_SELECT_MIN_RATIO] [--all-keep] [--all-left] [--all-right] [--all-delete] [--verbose]
               czkawka_dupes_output_path

    Choose which duplicate to keep by opening both side-by-side in mpv
"""

dedupe_db = """library dedupe-dbs DATABASE TABLE --bk BUSINESS_KEYS [--pk PRIMARY_KEYS] [--only-columns COLUMNS]

    Dedupe your database (not to be confused with the dedupe subcommand)

    It should not need to be said but *backup* your database before trying this tool!

    Dedupe-DB will help remove duplicate rows based on non-primary-key business keys

        library dedupe-db ./video.db media --bk path

    By default all non-primary and non-business key columns will be upserted unless --only-columns is provided
    If --primary-keys is not provided table metadata primary keys will be used
    If your duplicate rows contain exactly the same data in all the columns you can run with --skip-upsert to save a lot of time
"""

search_db = """library search-db DATABASE TABLE SEARCH ... [--delete-rows]

    Search all columns in a SQLITE table. If the table does not exist, uses the table which startswith (if only one match)
"""

merge_dbs = """library merge-dbs DEST_DB SOURCE_DB ... [--only-target-columns] [--only-new-rows] [--upsert] [--pk PK ...] [--table TABLE ...]

    Merge-DBs will insert new rows from source dbs to target db, table by table. If primary key(s) are provided,
    and there is an existing row with the same PK, the default action is to delete the existing row and insert the new row
    replacing all existing fields.

    Upsert mode will update each matching PK row such that if a source row has a NULL field and
    the destination row has a value then the value will be preserved instead of changed to the source row's NULL value.

    Ignore mode (--only-new-rows) will insert only rows which don't already exist in the destination db

    Test first by using temp databases as the destination db.
    Try out different modes / flags until you are satisfied with the behavior of the program

        library merge-dbs --pk path (mktemp --suffix .db) tv.db movies.db

    Merge database data and tables

        library merge-dbs --upsert --pk path video.db tv.db movies.db
        library merge-dbs --only-target-columns --only-new-rows --table media,playlists --pk path --skip-column id audio-fts.db audio.db

        library merge-dbs --pk id --only-tables subreddits reddit/81_New_Music.db audio.db
        library merge-dbs --only-new-rows --pk subreddit,path --only-tables reddit_posts reddit/81_New_Music.db audio.db -v

     To skip copying primary-keys from the source table(s) use --business-keys instead of --primary-keys

     Split DBs using --where

         library merge-dbs --pk path specific-site.db big.db -v --only-new-rows -t media,playlists -w 'path like "https://specific-site%%"'
"""

merge_folders = """library merge-folders [--replace] [--no-replace] [--simulate] SOURCES ... DESTINATION

    Merge multiple folders with the same file tree into a single folder.

    https://github.com/chapmanjacobd/journal/blob/main/programming/linux/misconceptions.md#mv-src-vs-mv-src

    Trumps are new or replaced files from an earlier source which now conflict with a later source.
    If you only have one source then the count of trumps will always be zero.
    The count of conflicts also includes trumps.
"""

merge_online_local = """library merge-online-local DATABASE

    If you have previously downloaded YouTube or other online media, you can dedupe
    your database and combine the online and local media records as long as your
    files have the youtube-dl / yt-dlp id in the filename.
"""

optimize = """library optimize DATABASE [--force]

    Optimize library databases

    The force flag is usually unnecessary and it can take much longer
"""

redownload = """library redownload DATABASE

    If you have previously downloaded YouTube or other online media, but your
    hard drive failed or you accidentally deleted something, and if that media
    is still accessible from the same URL, this script can help to redownload
    everything that was scanned-as-deleted between two timestamps.

    List deletions:

        library redownload news.db
        Deletions:
        ╒═════════════════════╤═════════╕
        │ time_deleted        │   count │
        ╞═════════════════════╪═════════╡
        │ 2023-01-26T00:31:26 │     120 │
        ├─────────────────────┼─────────┤
        │ 2023-01-26T19:54:42 │      18 │
        ├─────────────────────┼─────────┤
        │ 2023-01-26T20:45:24 │      26 │
        ╘═════════════════════╧═════════╛
        Showing most recent 3 deletions. Use -l to change this limit

    Mark videos as candidates for download via specific deletion timestamp:

        library redownload city.db 2023-01-26T19:54:42

    ...or between two timestamps inclusive:

        library redownload city.db 2023-01-26T19:54:42 2023-01-26T20:45:24
"""

relmv = """library relmv [--simulate] SOURCE ... DEST

    Move files/folders without losing hierarchy metadata

    Move fresh music to your phone every Sunday:

        # move last week music back to their source folders
        library mv /mnt/d/sync/weekly/ /mnt/d/check/audio/

        # move new music for this week
        library relmv (
            library listen audio.db --local-media-only --where 'play_count=0' --random -L 600 -p f
        ) /mnt/d/sync/weekly/
"""

mv_list = """library mv-list [--limit LIMIT] [--lower LOWER] [--upper UPPER] MOUNT_POINT DATABASE

    Free up space on a specific disk. Find candidates for moving data to a different mount point


    The program takes a mount point and a xklb database file. If you don't have a database file you can create one like this:

        library fsadd --filesystem d.db ~/d/

    But this should definitely also work with xklb audio and video databases:

        library mv-list /mnt/d/ video.db

    The program will print a table with a sorted list of folders which are good candidates for moving.
    Candidates are determined by how many files are in the folder (so you don't spend hours waiting for folders with millions of tiny files to copy over).
    The default is 4 to 4000--but it can be adjusted via the --lower and --upper flags.

        ██╗███╗░░██╗░██████╗████████╗██████╗░██╗░░░██╗░█████╗░████████╗██╗░█████╗░███╗░░██╗░██████╗
        ██║████╗░██║██╔════╝╚══██╔══╝██╔══██╗██║░░░██║██╔══██╗╚══██╔══╝██║██╔══██╗████╗░██║██╔════╝
        ██║██╔██╗██║╚█████╗░░░░██║░░░██████╔╝██║░░░██║██║░░╚═╝░░░██║░░░██║██║░░██║██╔██╗██║╚█████╗░
        ██║██║╚████║░╚═══██╗░░░██║░░░██╔══██╗██║░░░██║██║░░██╗░░░██║░░░██║██║░░██║██║╚████║░╚═══██╗
        ██║██║░╚███║██████╔╝░░░██║░░░██║░░██║╚██████╔╝╚█████╔╝░░░██║░░░██║╚█████╔╝██║░╚███║██████╔╝
        ╚═╝╚═╝░░╚══╝╚═════╝░░░░╚═╝░░░╚═╝░░╚═╝░╚═════╝░░╚════╝░░░░╚═╝░░░╚═╝░╚════╝░╚═╝░░╚══╝╚═════╝░

        Type "done" when finished
        Type "more" to see more files
        Paste a folder (and press enter) to toggle selection
        Type "*" to select all files in the most recently printed table

    Then it will give you a prompt:

        Paste a path:

    Wherein you can copy and paste paths you want to move from the table and the program will keep track for you.

        Paste a path: /mnt/d/75_MovieQueue/720p/s11/
        26 selected paths: 162.1 GB ; future free space: 486.9 GB

    You can also press the up arrow or paste it again to remove it from the list:

        Paste a path: /mnt/d/75_MovieQueue/720p/s11/
        25 selected paths: 159.9 GB ; future free space: 484.7 GB

    After you are done selecting folders you can press ctrl-d and it will save the list to a tmp file:

        Paste a path: done

            Folder list saved to /tmp/tmp7x_75l8. You may want to use the following command to move files to an EMPTY folder target:

                rsync -a --info=progress2 --no-inc-recursive --remove-source-files --files-from=/tmp/tmp7x_75l8 -r --relative -vv --dry-run / jim:/free/real/estate/
"""

mergerfs_cp = """library mergerfs-cp SOURCE ... DEST [--simulate] [--replace | --no-replace] [--ext EXT]

Copy files with reflink and handle mergerfs mounts.
"""

scatter = """library scatter [--limit LIMIT] [--policy POLICY] [--sort SORT] --targets TARGETS DATABASE RELATIVE_PATH ...

    Scatter filesystem folder trees (without mountpoints; limited functionality; good for balancing fs inodes)

        library scatter scatter.db /test/{0,1,2,3,4,5,6,7,8,9}

    Reduce number of files per folder (creates more folders)

        library scatter scatter.db --max-files-per-folder 16000 /test/{0,1,2,3,4,5,6,7,8,9}

    Balance files across filesystem folder trees or multiple devices (mostly useful for mergerfs)

    Multi-device re-bin: balance by size

        library scatter -m /mnt/d1:/mnt/d2:/mnt/d3:/mnt/d4/:/mnt/d5:/mnt/d6:/mnt/d7 fs.db subfolder/of/mergerfs/mnt
        Current path distribution:
        ╒═════════╤══════════════╤══════════════╤═══════════════╤════════════════╤═════════════════╤════════════════╕
        │ mount   │   file_count │ total_size   │ median_size   │ time_created   │ time_modified   │ time_downloaded│
        ╞═════════╪══════════════╪══════════════╪═══════════════╪════════════════╪═════════════════╪════════════════╡
        │ /mnt/d1 │        12793 │ 169.5 GB     │ 4.5 MB        │ Jan 27         │ Jul 19 2022     │ Jan 31         │
        ├─────────┼──────────────┼──────────────┼───────────────┼────────────────┼─────────────────┼────────────────┤
        │ /mnt/d2 │        13226 │ 177.9 GB     │ 4.7 MB        │ Jan 27         │ Jul 19 2022     │ Jan 31         │
        ├─────────┼──────────────┼──────────────┼───────────────┼────────────────┼─────────────────┼────────────────┤
        │ /mnt/d3 │            1 │ 717.6 kB     │ 717.6 kB      │ Jan 31         │ Jul 18 2022     │ yesterday      │
        ├─────────┼──────────────┼──────────────┼───────────────┼────────────────┼─────────────────┼────────────────┤
        │ /mnt/d4 │           82 │ 1.5 GB       │ 12.5 MB       │ Jan 31         │ Apr 22 2022     │ yesterday      │
        ╘═════════╧══════════════╧══════════════╧═══════════════╧════════════════╧═════════════════╧════════════════╛

        Simulated path distribution:
        5845 files should be moved
        20257 files should not be moved
        ╒═════════╤══════════════╤══════════════╤═══════════════╤════════════════╤═════════════════╤════════════════╕
        │ mount   │   file_count │ total_size   │ median_size   │ time_created   │ time_modified   │ time_downloaded│
        ╞═════════╪══════════════╪══════════════╪═══════════════╪════════════════╪═════════════════╪════════════════╡
        │ /mnt/d1 │         9989 │ 46.0 GB      │ 2.4 MB        │ Jan 27         │ Jul 19 2022     │ Jan 31         │
        ├─────────┼──────────────┼──────────────┼───────────────┼────────────────┼─────────────────┼────────────────┤
        │ /mnt/d2 │        10185 │ 46.0 GB      │ 2.4 MB        │ Jan 27         │ Jul 19 2022     │ Jan 31         │
        ├─────────┼──────────────┼──────────────┼───────────────┼────────────────┼─────────────────┼────────────────┤
        │ /mnt/d3 │         1186 │ 53.6 GB      │ 30.8 MB       │ Jan 27         │ Apr 07 2022     │ Jan 31         │
        ├─────────┼──────────────┼──────────────┼───────────────┼────────────────┼─────────────────┼────────────────┤
        │ /mnt/d4 │         1216 │ 49.5 GB      │ 29.5 MB       │ Jan 27         │ Apr 07 2022     │ Jan 31         │
        ├─────────┼──────────────┼──────────────┼───────────────┼────────────────┼─────────────────┼────────────────┤
        │ /mnt/d5 │         1146 │ 53.0 GB      │ 30.9 MB       │ Jan 27         │ Apr 07 2022     │ Jan 31         │
        ├─────────┼──────────────┼──────────────┼───────────────┼────────────────┼─────────────────┼────────────────┤
        │ /mnt/d6 │         1198 │ 48.8 GB      │ 30.6 MB       │ Jan 27         │ Apr 07 2022     │ Jan 31         │
        ├─────────┼──────────────┼──────────────┼───────────────┼────────────────┼─────────────────┼────────────────┤
        │ /mnt/d7 │         1182 │ 52.0 GB      │ 30.9 MB       │ Jan 27         │ Apr 07 2022     │ Jan 31         │
        ╘═════════╧══════════════╧══════════════╧═══════════════╧════════════════╧═════════════════╧════════════════╛
        ### Move 1182 files to /mnt/d7 with this command: ###
        rsync -aE --xattrs --info=progress2 --remove-source-files --files-from=/tmp/tmpmr1628ij / /mnt/d7
        ### Move 1198 files to /mnt/d6 with this command: ###
        rsync -aE --xattrs --info=progress2 --remove-source-files --files-from=/tmp/tmp9yd75f6j / /mnt/d6
        ### Move 1146 files to /mnt/d5 with this command: ###
        rsync -aE --xattrs --info=progress2 --remove-source-files --files-from=/tmp/tmpfrj141jj / /mnt/d5
        ### Move 1185 files to /mnt/d3 with this command: ###
        rsync -aE --xattrs --info=progress2 --remove-source-files --files-from=/tmp/tmpqh2euc8n / /mnt/d3
        ### Move 1134 files to /mnt/d4 with this command: ###
        rsync -aE --xattrs --info=progress2 --remove-source-files --files-from=/tmp/tmphzb0gj92 / /mnt/d4

    Multi-device re-bin: balance device inodes for specific subfolder

        library scatter -m /mnt/d1:/mnt/d2 fs.db subfolder --group count --sort 'size desc'

    Multi-device re-bin: only consider the most recent 100 files

        library scatter -m /mnt/d1:/mnt/d2 -l 100 -s 'time_modified desc' fs.db /

    Multi-device re-bin: empty out a disk (/mnt/d2) into many other disks (/mnt/d1, /mnt/d3, and /mnt/d4)

        library scatter fs.db -m /mnt/d1:/mnt/d3:/mnt/d4 /mnt/d2

    This tool is intended for local use. If transferring many small files across the network something like
    [fpart](https://github.com/martymac/fpart) or [fpsync](https://www.fpart.org/fpsync/) will be better.
"""

links_open = """library links-open DATABASE [search] [--title] [--title-prefix TITLE_PREFIX]

    Open links from a links db

        wget https://github.com/chapmanjacobd/library/raw/main/example_dbs/music.korea.ln.db
        library open-links music.korea.ln.db

    Only open links once

        library open-links ln.db -w 'time_modified=0'

    Print a preview instead of opening tabs

        library open-links ln.db -p
        library open-links ln.db --cols time_modified -p

    Delete rows

        Make sure you have the right search query
        library open-links ln.db "query" -p -L inf
        library open-links ln.db "query" -pa  # view total

        library open-links ln.db "query" -pd  # mark as deleted

    Custom search engine

        library open-links ln.db --title --prefix 'https://duckduckgo.com/?q='

    Skip local media

        library open-links dl.db --online
        library open-links dl.db -w 'path like "http%%"'  # equivalent

"""

surf = """library surf [--count COUNT] [--target-hosts TARGET_HOSTS] < stdin

    Streaming tab loader: press ctrl+c to stop.

    Open tabs from a line-delimited file:

        cat tabs.txt | library surf -n 5

    You will likely want to use this setting in `about:config`

        browser.tabs.loadDivertedInBackground = True

    If you prefer GUI, check out https://unli.xyz/tabsender/
"""

pushshift = """library pushshift DATABASE < stdin

    Download data (about 600GB jsonl.zst; 6TB uncompressed)

        wget -e robots=off -r -k -A zst https://files.pushshift.io/reddit/submissions/

    Load data from files via unzstd

        unzstd --memory=2048MB --stdout RS_2005-07.zst | library pushshift pushshift.db

    Or multiple (output is about 1.5TB SQLITE fts-searchable):

        for f in psaw/files.pushshift.io/reddit/submissions/*.zst
            echo "unzstd --memory=2048MB --stdout $f | library pushshift (basename $f).db"
            library optimize (basename $f).db
        end | parallel -j5
"""

reddit_selftext = """library reddit-selftext DATABASE

    Extract URLs from reddit selftext from the reddit_posts table to the media table
"""

mpv_watchlater = """library mpv-watchlater DATABASE [--watch-later-directory ~/.config/mpv/watch_later/]

    Extract timestamps from MPV to the history table
"""

export_text = """library export-text DATABASE

    Generate HTML files from SQLite databases
"""

eda = """library eda PATH ... [--table TABLE] [--start-row START_ROW] [--end-row END_ROW] [--repl]

    Perform Exploratory Data Analysis (EDA) on one or more files

    Only 20,000 rows per file are loaded for performance purposes. Set `--end-row inf` to read all the rows and/or run out of RAM.
"""

markdown_tables = """library markdown-tables PATH ... [--table TABLE] [--start-row START_ROW] [--end-row END_ROW]

    Print tables from files as markdown

    Only 20,000 rows per file are loaded for performance purposes. Set `--end-row inf` to read all the rows and/or run out of RAM.
"""

mcda = """library mcda PATH ... [--table TABLE] [--start-row START_ROW] [--end-row END_ROW]

    Perform Multiple Criteria Decision Analysis (MCDA) on one or more files

    Only 20,000 rows per file are loaded for performance purposes. Set `--end-row inf` to read all the rows and/or run out of RAM.

    $ library mcda ~/storage.csv --minimize price --ignore warranty

        ### Goals
        #### Maximize
        - size
        #### Minimize
        - price

        |    |   price |   size |   warranty |   TOPSIS |      MABAC |   SPOTIS |   BORDA |
        |----|---------|--------|------------|----------|------------|----------|---------|
        |  0 |     359 |     36 |          5 | 0.769153 |  0.348907  | 0.230847 | 7.65109 |
        |  1 |     453 |     40 |          2 | 0.419921 |  0.0124531 | 0.567301 | 8.00032 |
        |  2 |     519 |     44 |          2 | 0.230847 | -0.189399  | 0.769153 | 8.1894  |

    $ library mcda ~/storage.csv --ignore warranty

        ### Goals
        #### Maximize
        - price
        - size

        |    |   price |   size |   warranty |   TOPSIS |     MABAC |   SPOTIS |   BORDA |
        |----|---------|--------|------------|----------|-----------|----------|---------|
        |  2 |     519 |     44 |          2 | 1        |  0.536587 | 0        | 7.46341 |
        |  1 |     453 |     40 |          2 | 0.580079 |  0.103888 | 0.432699 | 7.88333 |
        |  0 |     359 |     36 |          5 | 0        | -0.463413 | 1        | 8.46341 |

    $ library mcda ~/storage.csv --minimize price --ignore warranty

        ### Goals
        #### Maximize
        - size
        #### Minimize
        - price

        |    |   price |   size |   warranty |   TOPSIS |      MABAC |   SPOTIS |   BORDA |
        |----|---------|--------|------------|----------|------------|----------|---------|
        |  0 |     359 |     36 |          5 | 0.769153 |  0.348907  | 0.230847 | 7.65109 |
        |  1 |     453 |     40 |          2 | 0.419921 |  0.0124531 | 0.567301 | 8.00032 |
        |  2 |     519 |     44 |          2 | 0.230847 | -0.189399  | 0.769153 | 8.1894  |

    It also works with HTTP/GCS/S3 URLs:

    $ library mcda https://en.wikipedia.org/wiki/List_of_Academy_Award-winning_films --clean --minimize Year

        ### Goals

        #### Maximize

        - Nominations
        - Awards

        #### Minimize

        - Year

        |      | Film                                                                    |   Year |   Awards |   Nominations |      TOPSIS |    MABAC |      SPOTIS |   BORDA |
        |------|-------------------------------------------------------------------------|--------|----------|---------------|-------------|----------|-------------|---------|
        |  378 | Titanic                                                                 |   1997 |       11 |            14 | 0.999993    | 1.38014  | 4.85378e-06 | 4116.62 |
        |  868 | Ben-Hur                                                                 |   1959 |       11 |            12 | 0.902148    | 1.30871  | 0.0714303   | 4116.72 |
        |  296 | The Lord of the Rings: The Return of the King                           |   2003 |       11 |            11 | 0.8558      | 1.27299  | 0.107147    | 4116.76 |
        | 1341 | West Side Story                                                         |   1961 |       10 |            11 | 0.837716    | 1.22754  | 0.152599    | 4116.78 |
        |  389 | The English Patient                                                     |   1996 |        9 |            12 | 0.836725    | 1.2178   | 0.162341    | 4116.78 |
        | 1007 | Gone with the Wind                                                      |   1939 |        8 |            13 | 0.807086    | 1.20806  | 0.172078    | 4116.81 |
        |  990 | From Here to Eternity                                                   |   1953 |        8 |            13 | 0.807086    | 1.20806  | 0.172079    | 4116.81 |
        | 1167 | On the Waterfront                                                       |   1954 |        8 |            12 | 0.785       | 1.17235  | 0.207793    | 4116.83 |
        | 1145 | My Fair Lady                                                            |   1964 |        8 |            12 | 0.785       | 1.17235  | 0.207793    | 4116.83 |
        |  591 | Gandhi                                                                  |   1982 |        8 |            11 | 0.755312    | 1.13663  | 0.243509    | 4116.86 |
"""

incremental_diff = """library incremental-diff PATH1 PATH2 [--join-keys JOIN_KEYS] [--table1 TABLE1] [--table2 TABLE2] [--table1-index TABLE1_INDEX] [--table2-index TABLE2_INDEX] [--start-row START_ROW] [--batch-size BATCH_SIZE]

    See data differences in an incremental way to quickly see how two different files differ.

    Data (PATH1, PATH2) can be two different files of different file formats (CSV, Excel) or it could even be the same file with different tables.

    If files are unsorted you may need to use `--join-keys id,name` to specify ID columns. Rows that have the same ID will then be compared.
    If you are comparing SQLITE files you may be able to use `--sort id,name` to achieve the same effect.

    To diff everything at once run with `--batch-size inf`
"""

extract_links = """library extract-links PATH ... [--case-sensitive] [--scroll] [--download] [--verbose] [--local-html] [--file FILE] [--path-include ...] [--text-include ...] [--after-include ...] [--before-include ...] [--path-exclude ...] [--text-exclude ...] [--after-exclude ...] [--before-exclude ...]

    Extract links from within local HTML fragments, files, or remote pages; filtering on link text and nearby plain-text

        library links https://en.wikipedia.org/wiki/List_of_bacon_dishes --path-include https://en.wikipedia.org/wiki/ --after-include famous
        https://en.wikipedia.org/wiki/Omelette

    Read from local clipboard and filter out links based on nearby plain text:

        library links --local-html (cb -t text/html | psub) --after-exclude paranormal spooky horror podcast tech fantasy supernatural lecture sport
        # note: the equivalent BASH-ism is <(xclip -selection clipboard -t text/html)

    Run with `-vv` to see the browser
"""

links_add = r"""library links-add DATABASE PATH ... [--case-sensitive] [--cookies-from-browser BROWSER[+KEYRING][:PROFILE][::CONTAINER]] [--selenium] [--manual] [--scroll] [--auto-pager] [--poke] [--chrome] [--local-html] [--file FILE]

    Database version of extract-links

    You can fine-tune what links get saved with --path/text/before/after-include/exclude.

        library links-add --path-include /video/

    Defaults to stop fetching

        After encountering ten pages with no new links:
        library links-add --stop-pages-no-new 10

        Some websites don't give an error when you try to access pages which don't exist.
        To compensate for this the script will only continue fetching pages until there are both no new nor known links for four pages:
        library links-add --stop-pages-no-match 4

    Backfill fixed number of pages

        You can disable automatic stopping by any of the following:

        - Set `--backfill-pages` to the desired number of pages for the first run
        - Set `--fixed-pages` to _always_ fetch the desired number of pages

        If the website is supported by --auto-pager data is fetched twice when using page iteration.
        As such, page iteration (--max-pages, --fixed-pages, etc) is disabled when using `--auto-pager`.

        You can set unset --fixed-pages for all the playlists in your database by running this command:
        sqlite your.db "UPDATE playlists SET extractor_config = json_replace(extractor_config, '$.fixed_pages', null)"

    To use "&p=1" instead of "&page=1"

        library links-add --page-key p

        By default the script will attempt to modify each given URL with "&page=1".

    Single page

        If `--fixed-pages` is 1 and --start-page is not set then the URL will not be modified.

        library links-add --fixed-pages=1
        Loading page https://site/path

        library links-add --fixed-pages=1 --page-start 99
        Loading page https://site/path?page=99

    Reverse chronological paging

        library links-add --max-pages 10
        library links-add --fixed-pages (overrides --max-pages and --stop-known but you can still stop early via --stop-link ie. 429 page)

    Chronological paging

        library links-add --page-start 100 --page-step 1

        library links-add --page-start 100 --page-step=-1 --fixed-pages=5  # go backwards

        # TODO: store previous page id (max of sliding window)

    Jump pages

        Some pages don't count page numbers but instead count items like messages or forum posts. You can iterate through like this:

        library links-add --page-key start --page-start 0 --page-step 50

        which translates to
        &start=0    first page
        &start=50   second page
        &start=100  third page

    Page folders

        Some websites use paths instead of query parameters. In this case make sure the URL provided includes that information with a matching --page-key

        library links-add --page-key page https://website/page/1/
        library links-add --page-key article https://website/article/1/

    Import links from args

        library links-add --no-extract links.db (cb)

    Import lines from stdin

        cb | lb linksdb example_dbs/links.db --skip-extract -

    Other Examples

        library links-add links.db https://video/site/ --path-include /video/

        library links-add links.db https://loginsite/ --path-include /article/ --cookies-from-browser firefox
        library links-add links.db https://loginsite/ --path-include /article/ --cookies-from-browser chrome

        library links-add --path-include viewtopic.php --cookies-from-browser firefox \
        --page-key start --page-start 0 --page-step 50 --fixed-pages 14 --stop-pages-no-match 1 \
        plab.db https://plab/forum/tracker.php?o=(string replace ' ' \n -- 1 4 7 10 15)&s=2&tm=-1&f=(string replace ' ' \n -- 1670 1768 60 1671 1644 1672 1111 508 555 1112 1718 1143 1717 1851 1713 1712 1775 1674 902 1675 36 1830 1803 1831 1741 1676 1677 1780 1110 1124 1784 1769 1793 1797 1804 1819 1825 1836 1842 1846 1857 1861 1867 1451 1788 1789 1792 1798 1805 1820 1826 1837 1843 1847 1856 1862 1868 284 1853 1823 1800 1801 1719 997 1818 1849 1711 1791 1762)
"""


links_update = """library links-update DATABASE

    Fetch new links from each path previously saved

        library links-update links.db
"""

extract_text = r"""library extract-text PATH ... [--skip-links]

    Sorting suggestions

        lb extract-text --skip-links --local-html (cb -t text/html | psub) | lb cs --groups | jq -r '.[] | .grouped_paths | "\n" + join("\n")'
"""

site_add = """library site-add DATABASE PATH ... [--auto-pager] [--poke] [--local-html] [--file FILE]

    Extract data from website requests to a database

        library siteadd jobs.st.db --poke https://hk.jobsdb.com/hk/search-jobs/python/

    Requires selenium-wire
    Requires xmltodict when using --extract-xml

        pip install selenium-wire xmltodict

    Run with `-vv` to see and interact with the browser
"""

process_ffmpeg = """library process-ffmpeg PATH ... [--always-split] [--split-longer-than DURATION] [--min-split-segment SECONDS] [--simulate]

    Resize videos to max 1440x960px AV1 and/or Opus to save space

    Convert audio to Opus. Optionally split up long tracks into multiple files.

        fd -tf -eDTS -eAAC -eWAV -eAIF -eAIFF -eFLAC -eAIFF -eM4A -eMP3 -eOGG -eMP4 -eWMA -j4 -x library process --audio

    Use --always-split to _always_ split files if silence is detected

        library process-audio --always-split audiobook.m4a

    Use --split-longer-than to _only_ detect silence for files in excess of a specific duration

        library process-audio --split-longer-than 36mins audiobook.m4b audiobook2.mp3
"""

process_image = """library process-image PATH ...

    Resize images to max 2400x2400px and format AVIF to save space
"""

sample_hash = """library sample-hash [--same-file-threads 1] [--chunk-size BYTES] [--gap BYTES OR 0.0-1.0*FILESIZE] PATH ...

    Calculate hashes for large files by reading only small segments of each file

        library sample-hash ./my_file.mkv

    The threads flag seems to be faster for rotational media but slower on SSDs
"""

sample_compare = """library sample-compare [--same-file-threads 1] [--chunk-size BYTES] [--gap BYTES OR 0.0-1.0*FILESIZE] PATH ...

    Convenience subcommand to compare multiple files using sample-hash
"""

media_check = """library media-check [--chunk-size SECONDS] [--gap SECONDS OR 0.0-1.0*DURATION] [--delete-corrupt >0-100] [--full-scan] [--audio-scan] PATH ...

    Defaults to decode 0.5 second per 10%% of each file

        library media-check ./video.mp4

    Decode all the frames of each file to evaluate how corrupt it is
    (scantime is very slow; about 150 seconds for an hour-long file)

        library media-check --full-scan ./video.mp4

    Decode all the packets of each file to evaluate how corrupt it is
    (scantime is about one second of each file but only accurate for formats where 1 packet == 1 frame)

        library media-check --full-scan --gap 0 ./video.mp4

    Decode all audio of each file to evaluate how corrupt it is
    (scantime is about four seconds per file)

        library media-check --full-scan --audio ./video.mp4

    Decode at least one frame at the start and end of each file to evaluate how corrupt it is
    (scantime is about one second per file)

        library media-check --chunk-size 5%% --gap 99.9%% ./video.mp4

    Decode 3s every 5%% of a file to evaluate how corrupt it is
    (scantime is about three seconds per file)

        library media-check --chunk-size 3 --gap 5%% ./video.mp4

    Delete the file if 20 percent or more of checks fail

        library media-check --delete-corrupt 20%% ./video.mp4

    To scan a large folder use `fsadd`. I recommend something like this two-stage approach:

        library fsadd --delete-unplayable --check-corrupt --chunk-size 5%% tmp.db ./video/ ./folders/
        library media-check (library fs tmp.db -w 'corruption>15' -pf) --full-scan --delete-corrupt 25%%

    The above can now be done in one command via `--full-scan-if-corrupt`:

        library fsadd --delete-unplayable --check-corrupt --chunk-size 5%% tmp.db ./video/ ./folders/ --full-scan-if-corrupt 15%% --delete-corrupt 25%%

    Corruption stats

        library fs tmp.db -w 'corruption>15' -pa
        path         count  duration             avg_duration         size    avg_size
        ---------  -------  -------------------  --------------  ---------  ----------
        Aggregate      907  15 days and 9 hours  24 minutes      130.6 GiB   147.4 MiB

    Corruption graph

        sqlite --raw-lines tmp.db 'select corruption from media' | lowcharts hist --min 10 --intervals 10

        Samples = 931; Min = 10.0; Max = 100.0
        Average = 39.1; Variance = 1053.103; STD = 32.452
        each ∎ represents a count of 6
        [ 10.0 ..  19.0] [561] ∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎
        [ 19.0 ..  28.0] [ 69] ∎∎∎∎∎∎∎∎∎∎∎
        [ 28.0 ..  37.0] [ 33] ∎∎∎∎∎
        [ 37.0 ..  46.0] [ 18] ∎∎∎
        [ 46.0 ..  55.0] [ 14] ∎∎
        [ 55.0 ..  64.0] [ 12] ∎∎
        [ 64.0 ..  73.0] [ 15] ∎∎
        [ 73.0 ..  82.0] [ 18] ∎∎∎
        [ 82.0 ..  91.0] [ 50] ∎∎∎∎∎∎∎∎
        [ 91.0 .. 100.0] [141] ∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎
"""

web_add = """library web-add [(--filesystem) | --video | --audio | --image | --text] DATABASE URL ...

    Scan open directories

        library web-add open_dir.db --video http://1.1.1.1/

    Check download size of all videos matching some criteria

        library download --fs open_dir.db --prefix ~/d/dump/video/ -w 'height<720' -E preview -pa

        path         count  download_duration                  size    avg_size
        ---------  -------  ----------------------------  ---------  ----------
        Aggregate     5694  2 years, 7 months and 5 days  724.4 GiB   130.3 MiB

    Download all videos matching some criteria

        library download --fs open_dir.db --prefix ~/d/dump/video/ -w 'height<720' -E preview

    Stream directly to mpv

        library watch open_dir.db

    Check videos before downloading

        library watch open_dir.db --online-media-only --loop --exit-code-confirm -i --action ask-keep -m 4  --start 35%% --volume=0 -w 'height<720' -E preview

        Assuming you have bound in mpv input.conf a key to 'quit' and another key to 'quit 4',
        using the ask-keep action will mark a video as deleted when you 'quit 4' and it will mark a video as watched when you 'quit'.

        For example, here I bind "'" to "KEEP" and  "j" to "DELETE"

            ' quit
            j quit 4

        This is pretty intuitive after you use it a few times but another option is to
        define your own post-actions:

            `--cmd5 'echo {} >> keep.txt' --cmd6 'echo {} >> rejected.txt'`

        But you will still bind keys in mpv input.conf:

            k quit 5  # goes to keep.txt
            r quit 6  # goes to rejected.txt

    Download checked videos

        library download --fs open_dir.db --prefix ~/d/dump/video/ -w 'id in (select media_id from history)'

    View most recent files

        library fs example_dbs/web_add.image.db -u time_modified desc --cols path,width,height,size,time_modified -p -l 10
        path                                                                                                                      width    height       size  time_modified
        ----------------------------------------------------------------------------------------------------------------------  -------  --------  ---------  -----------------
        https://siliconpr0n.org/map/infineon/m7690-b1/single/infineon_m7690-b1_infosecdj_mz_nikon20x.jpg                           7066     10513   16.4 MiB  2 days ago, 20:54
        https://siliconpr0n.org/map/starchip/scf384g/single/starchip_scf384g_infosecdj_mz_nikon20x.jpg                            10804     10730   19.2 MiB  2 days ago, 15:31
        https://siliconpr0n.org/map/hp/2hpt20065-1-68k-core/single/hp_2hpt20065-1-68k-core_marmontel_mz_ms50x-1.25.jpg            28966     26816  192.2 MiB  4 days ago, 15:05
        https://siliconpr0n.org/map/hp/2hpt20065-1-68k-core/single/hp_2hpt20065-1-68k-core_marmontel_mz_ms20x-1.25.jpg            11840     10978   49.2 MiB  4 days ago, 15:04
        https://siliconpr0n.org/map/hp/2hpt20065-1/single/hp_2hpt20065-1_marmontel_mz_ms10x-1.25.jpg                              16457     14255  101.4 MiB  4 days ago, 15:03
        https://siliconpr0n.org/map/pervasive/e2213ps01e1/single/pervasive_e2213ps01e1_azonenberg_back_roi1_mit10x_rotated.jpg    18880     61836  136.8 MiB  6 days ago, 16:00
        https://siliconpr0n.org/map/pervasive/e2213ps01e/single/pervasive_e2213ps01e_azonenberg_back_mit5x_rotated.jpg            62208     30736  216.5 MiB  6 days ago, 15:57
        https://siliconpr0n.org/map/amd/am2964bpc/single/amd_am2964bpc_infosecdj_mz_lmplan10x.jpg                                 12809     11727   39.8 MiB  6 days ago, 10:28
        https://siliconpr0n.org/map/unknown/ks1804ir1/single/unknown_ks1804ir1_infosecdj_mz_lmplan10x.jpg                          6508      6707    8.4 MiB  6 days ago, 08:04
        https://siliconpr0n.org/map/amd/am2960dc-b/single/amd_am2960dc-b_infosecdj_mz_lmplan10x.jpg                               16434     15035   64.9 MiB  7 days ago, 19:01
        10 media (limited by --limit 10)

"""

web_update = """library web-update DATABASE

    Update saved open directories

"""

row_add = """library row-add DATABASE [--table-name TABLE_NAME]

    Add a row to sqlite

        library row-add t.db --test_b 1 --test-a 2

        ### media (1 rows)
        |   test_b |   test_a |
        |----------|----------|
        |        1 |        2 |
"""

markdown_links = """usage: library markdown-links URL ... [--cookies COOKIES] [--cookies-from-browser BROWSER[+KEYRING][:PROFILE][::CONTAINER]] [--firefox] [--chrome] [--allow-insecure] [--scroll] [--manual] [--auto-pager] [--poke] [--file FILE]

    Convert URLs into Markdown links with page titles filled in

        $ lb markdown-links https://www.youtube.com/watch?v=IgZDDW-NXDE
        [Work For Peace](https://www.youtube.com/watch?v=IgZDDW-NXDE)
"""

mount_stats = """library mount-stats MOUNTPOINT ...

    Print relative use and free for multiple mount points
"""

dates = """library dates ARGS_OR_STDIN

    Parse dates

        library dates 'October 2017'
        2017-10-01

    Parse times
        library dates --time 'October 2017 3pm'
        2017-10-01T15:00:00
"""

nouns = """library nouns (stdin)

    Extract compound nouns and phrases from unstructured mixed HTML plain text

        xsv select text hn_comment_202210242109.csv | library nouns | sort | uniq -c | sort --numeric-sort
"""

similar_files = """library similar-files PATH ...

    Find similar files using filenames and size

        $ library similar-files ~/d/

    Find similar files based on ONLY foldernames, using the full path

        $ library similar-files --no-filter-sizes --full-path ~/d/

    Find similar files based on ONLY size

        $ library similar-files --no-filter-names ~/d/

    Read paths from dbs

        $ lb fs audio.db --cols path,duration,size,time_deleted --to-json | lb similar-files --from-json -v

"""

similar_folders = """library similar-folders PATH ...

    Find similar folders based on foldernames, similar size, and similar number of files

        $ library similar-folders ~/d/

        group /home/xk/d/dump/datasets/*vector          total_size    median_size      files
        ----------------------------------------------  ------------  -------------  -------
        /home/xk/d/dump/datasets/vector/output/         1.8 GiB       89.5 KiB          1980
        /home/xk/d/dump/datasets/vector/output2/        1.8 GiB       89.5 KiB          1979

    Find similar folders based on ONLY foldernames, using the full path

        $ library similar-folders --no-filter-sizes --no-filter-counts --full-path ~/d/

    Find similar folders based on ONLY number of files

        $ library similar-folders --no-filter-names --no-filter-sizes ~/d/

    Find similar folders based on ONLY median size

        $ library similar-folders --no-filter-names --no-filter-counts ~/d/

    Find similar folders based on ONLY total size

        $ library similar-folders --no-filter-names --no-filter-counts --total-size ~/d/

    Read paths from dbs

        $ lb fs audio.db --cols path,duration,size,time_deleted --to-json | lb similar-folders --from-json -v

    Print only paths

        $ library similar-folders ~/d/ -pf
        /home/xk/d/dump/datasets/vector/output/
        /home/xk/d/dump/datasets/vector/output2/
"""

json_keys_rename = """library json-keys-rename --new-key 'old key substring' (stdin)

    Rename/filter keys in JSON

        echo '{"The Place of Birthings": "Yo Mama", "extra": "key"}' | lb json-keys-rename --country 'place of birth'
        {"country": "Yo Mama"}
"""
