# -*- coding: utf-8 -*-

from toot import api, config
from toot.auth import login_interactive, login_browser_interactive, create_app_interactive
from toot.exceptions import ConsoleError, NotFoundError
from toot.output import print_out, print_instance, print_account, print_search_results, print_timeline
from toot.utils import assert_domain_exists


def timeline(app, user, args):
    # Make sure tag, list and public are not used simultaneously
    if len([arg for arg in [args.tag, args.list, args.public] if arg]) > 1:
        raise ConsoleError("Only one of --public, --tag, or --list can be used at one time.")

    if args.local and not (args.public or args.tag):
        raise ConsoleError("The --local option is only valid alongside --public or --tag.")

    if args.public:
        items = api.timeline_public(app, user, local=args.local)
    elif args.tag:
        items = api.timeline_tag(app, user, args.tag, local=args.local)
    elif args.list:
        items = api.timeline_list(app, user, args.list)
    else:
        items = api.timeline_home(app, user)

    print_timeline(items)


def curses(app, user, args):
    from toot.ui.app import TimelineApp

    if not args.public and (not app or not user):
        raise ConsoleError("You must be logged in to view the home timeline.")

    if args.public:
        instance = args.instance or app.instance
        generator = api.public_timeline_generator(instance)
    else:
        generator = api.home_timeline_generator(app, user)

    TimelineApp(generator).run()


def post(app, user, args):
    if args.media:
        media = _do_upload(app, user, args.media)
        media_ids = [media['id']]
    else:
        media = None
        media_ids = None

    if media and not args.text:
        args.text = media['text_url']

    if not args.text:
        raise ConsoleError("You must specify either text or media to post.")

    response = api.post_status(
        app, user, args.text,
        visibility=args.visibility,
        media_ids=media_ids,
        sensitive=args.sensitive,
        spoiler_text=args.spoiler_text,
    )

    print_out("Toot posted: <green>{}</green>".format(response.get('url')))


def auth(app, user, args):
    config_data = config.load_config()

    if not config_data["users"]:
        print_out("You are not logged in to any accounts")
        return

    active_user = config_data["active_user"]

    print_out("Authenticated accounts:")
    for uid, u in config_data["users"].items():
        active_label = "ACTIVE" if active_user == uid else ""
        print_out("* <green>{}</green> <yellow>{}</yellow>".format(uid, active_label))

    path = config.get_config_file_path()
    print_out("\nAuth tokens are stored in: <blue>{}</blue>".format(path))


def login(app, user, args):
    app = create_app_interactive(instance=args.instance)
    login_interactive(app, args.email)

    print_out()
    print_out("<green>✓ Successfully logged in.</green>")


def login_browser(app, user, args):
    app = create_app_interactive(instance=args.instance)
    login_browser_interactive(app)

    print_out()
    print_out("<green>✓ Successfully logged in.</green>")


def logout(app, user, args):
    user = config.load_user(args.account, throw=True)
    config.delete_user(user)
    print_out("<green>✓ User {} logged out</green>".format(config.user_id(user)))


def activate(app, user, args):
    user = config.load_user(args.account, throw=True)
    config.activate_user(user)
    print_out("<green>✓ User {} active</green>".format(config.user_id(user)))


def upload(app, user, args):
    response = _do_upload(app, user, args.file)

    msg = "Successfully uploaded media ID <yellow>{}</yellow>, type '<yellow>{}</yellow>'"

    print_out()
    print_out(msg.format(response['id'], response['type']))
    print_out("Original URL: <green>{}</green>".format(response['url']))
    print_out("Preview URL:  <green>{}</green>".format(response['preview_url']))
    print_out("Text URL:     <green>{}</green>".format(response['text_url']))


def search(app, user, args):
    response = api.search(app, user, args.query, args.resolve)
    print_search_results(response)


def _do_upload(app, user, file):
    print_out("Uploading media: <green>{}</green>".format(file.name))
    return api.upload_media(app, user, file)


def _find_account(app, user, account_name):
    """For a given account name, returns the Account object.

    Raises an exception if not found.
    """
    if not account_name:
        raise ConsoleError("Empty account name given")

    accounts = api.search_accounts(app, user, account_name)

    if account_name[0] == "@":
        account_name = account_name[1:]

    for account in accounts:
        if account['acct'] == account_name:
            return account

    raise ConsoleError("Account not found")


def follow(app, user, args):
    account = _find_account(app, user, args.account)
    api.follow(app, user, account['id'])
    print_out("<green>✓ You are now following {}</green>".format(args.account))


def unfollow(app, user, args):
    account = _find_account(app, user, args.account)
    api.unfollow(app, user, account['id'])
    print_out("<green>✓ You are no longer following {}</green>".format(args.account))


def mute(app, user, args):
    account = _find_account(app, user, args.account)
    api.mute(app, user, account['id'])
    print_out("<green>✓ You have muted {}</green>".format(args.account))


def unmute(app, user, args):
    account = _find_account(app, user, args.account)
    api.unmute(app, user, account['id'])
    print_out("<green>✓ {} is no longer muted</green>".format(args.account))


def block(app, user, args):
    account = _find_account(app, user, args.account)
    api.block(app, user, account['id'])
    print_out("<green>✓ You are now blocking {}</green>".format(args.account))


def unblock(app, user, args):
    account = _find_account(app, user, args.account)
    api.unblock(app, user, account['id'])
    print_out("<green>✓ {} is no longer blocked</green>".format(args.account))


def whoami(app, user, args):
    account = api.verify_credentials(app, user)
    print_account(account)


def whois(app, user, args):
    account = _find_account(app, user, args.account)
    print_account(account)


def instance(app, user, args):
    name = args.instance or (app and app.instance)
    if not name:
        raise ConsoleError("Please specify instance name.")

    assert_domain_exists(name)

    try:
        instance = api.get_instance(name)
        print_instance(instance)
    except NotFoundError:
        raise ConsoleError(
            "Instance not found at {}.\n"
            "The given domain probably does not host a Mastodon instance.".format(name)
        )
