#!/bin/bash
# -*- coding: utf-8 -*-
# Test file for: add_diff_signature.sh

THIS_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
ROOT_DIR="$(realpath "$THIS_DIR/../..")"

# Test counter
TESTS_RUN=0
TESTS_PASSED=0
TESTS_FAILED=0

# Colors
GREEN='\033[0;32m'
RED='\033[0;31m'
NC='\033[0m'

assert_success() {
    local cmd="$1"
    local desc="${2:-$cmd}"
    ((TESTS_RUN++))
    if eval "$cmd" > /dev/null 2>&1; then
        echo -e "${GREEN}✓${NC} $desc"
        ((TESTS_PASSED++))
    else
        echo -e "${RED}✗${NC} $desc"
        ((TESTS_FAILED++))
    fi
}

assert_file_exists() {
    local file="$1"
    ((TESTS_RUN++))
    if [ -f "$file" ]; then
        echo -e "${GREEN}✓${NC} File exists: $file"
        ((TESTS_PASSED++))
    else
        echo -e "${RED}✗${NC} File missing: $file"
        ((TESTS_FAILED++))
    fi
}

# Add your tests here
test_placeholder() {
    echo "TODO: Add tests for add_diff_signature.sh"
}

# Run tests
main() {
    echo "Testing: add_diff_signature.sh"
    echo "========================================"

    test_placeholder

    echo "========================================"
    echo "Results: $TESTS_PASSED/$TESTS_RUN passed"
    [ $TESTS_FAILED -gt 0 ] && exit 1
    exit 0
}

main "$@"

# --------------------------------------------------------------------------------
# Start of Source Code from: /home/ywatanabe/proj/scitex-writer/scripts/shell/modules/add_diff_signature.sh
# --------------------------------------------------------------------------------
# #!/bin/bash
# # -*- coding: utf-8 -*-
# # Timestamp: "2025-11-12 (ywatanabe)"
# # File: ./scripts/shell/modules/add_diff_signature.sh
# # Description: Add metadata signature to diff TeX files
# 
# # Logging functions (if not already defined)
# if ! command -v echo_info &> /dev/null; then
#     GRAY='\033[0;90m'
#     GREEN='\033[0;32m'
#     YELLOW='\033[0;33m'
#     RED='\033[0;31m'
#     NC='\033[0m'
#     echo_info() { echo -e "${GRAY}INFO: $1${NC}"; }
#     echo_success() { echo -e "${GREEN}SUCC: $1${NC}"; }
#     echo_warning() { echo -e "${YELLOW}WARN: $1${NC}"; }
#     echo_error() { echo -e "${RED}ERRO: $1${NC}"; }
# fi
# 
# add_diff_signature() {
#     local diff_tex_file="$1"
#     local old_version="$2"
#     local new_version="$3"
# 
#     if [ ! -f "$diff_tex_file" ]; then
#         echo_warning "    Diff TeX file not found: $diff_tex_file"
#         return 1
#     fi
# 
#     echo_info "    Adding signature to diff document..."
# 
#     # Create signature block
#     local signature="
# %% =============================================================================
# %% Diff Document Metadata (Auto-generated)
# %% =============================================================================
# %% Comparison: v${old_version} → v${new_version}
# %% Generated: $(date '+%Y-%m-%d %H:%M:%S')
# %% User: $(git config user.name 2>/dev/null || echo 'unknown') <$(git config user.email 2>/dev/null || echo 'unknown')>
# %% Document: ${SCITEX_WRITER_DOC_TYPE}
# %% Git commit: $(git rev-parse --short HEAD 2>/dev/null || echo 'unknown')
# %% Git branch: $(git branch --show-current 2>/dev/null || echo 'unknown')
# %% =============================================================================
# 
# "
# 
#     # Add signature header at the beginning of the document (after \documentclass)
#     # This will appear in the PDF as metadata and can be seen in the source
# 
#     # Find the first \begin{document} and insert signature before it
#     local temp_file="${diff_tex_file}.tmp"
#     awk -v sig="$signature" '
#         /\\begin\{document\}/ {
#             print sig
#         }
#         { print }
#     ' "$diff_tex_file" > "$temp_file"
# 
#     mv "$temp_file" "$diff_tex_file"
# 
#     # Also add visible signature in the PDF footer (optional)
#     # Add to preamble before \begin{document}
#     # Use cat with heredoc to avoid AWK escape sequence issues
#     local temp_file="${diff_tex_file}.tmp"
# 
#     # Find the line number of \begin{document}
#     local begin_doc_line=$(grep -n '\\begin{document}' "$diff_tex_file" | head -1 | cut -d: -f1)
# 
#     if [ -n "$begin_doc_line" ]; then
#         # Insert signature before \begin{document}
#         {
#             head -n $((begin_doc_line - 1)) "$diff_tex_file"
#             cat << EOF
# \\usepackage{fancyhdr}
# \\usepackage{lastpage}
# 
# \\fancypagestyle{diffstyle}{
#     \\fancyhf{}
#     \\renewcommand{\\headrulewidth}{0.4pt}
#     \\renewcommand{\\footrulewidth}{0.4pt}
#     \\fancyhead[L]{\\small\\textit{Diff: v${old_version} → v${new_version}}}
#     \\fancyhead[R]{\\small\\textit{${SCITEX_WRITER_DOC_TYPE}}}
#     \\fancyfoot[L]{\\small Generated: $(date '+%Y-%m-%d %H:%M')}
#     \\fancyfoot[C]{\\small Page \\thepage\\ of \\pageref{LastPage}}
#     \\fancyfoot[R]{\\small $(git config user.name 2>/dev/null || echo 'Auto-generated')}
# }
# 
# \\AtBeginDocument{\\pagestyle{diffstyle}}
# EOF
#             tail -n +$begin_doc_line "$diff_tex_file"
#         } > "$temp_file"
# 
#         mv "$temp_file" "$diff_tex_file"
#     fi
# 
#     echo_success "    Diff signature added (header + footer metadata)"
# }
# 
# # Export function for use in other scripts
# export -f add_diff_signature
# 
# # EOF

# --------------------------------------------------------------------------------
# End of Source Code from: /home/ywatanabe/proj/scitex-writer/scripts/shell/modules/add_diff_signature.sh
# --------------------------------------------------------------------------------
