#!/usr/bin/env bash
set -e

echo "pnpm version: $(pnpm --version)"
echo "hugo version: $(hugo version)"
echo "git version: $(git -v)"
echo "curl version: $(curl -V)"

if [[ -z "$GIT_URL" ]]; then
    echo 'Error: GIT_URL environment variable is required.' >&2
    exit 1
fi

GIT_PATH="/app/repo"
if [[ ! -d "$GIT_PATH" ]]; then
    echo "Cloning git repo: $GIT_URL (shallow clone)"
    git clone --depth 1 "$GIT_URL" "$GIT_PATH"
else
    echo "Pull git repo: $GIT_URL"
    git -C "$GIT_PATH" pull
fi

if [[ -f "$GIT_PATH/.gitmodules" ]]; then
    echo 'Found .gitmodules, initializing submodules (shallow).'
    git -C "$GIT_PATH" submodule init
    git -C "$GIT_PATH" submodule update --recursive --depth 1
fi

if [[ -f "${GIT_PATH}/task" ]]; then

    if [[ -z "$TASK_COMMANDS" ]]; then
        echo 'Error: TASK_COMMANDS environment variable is required.' >&2
        exit 1
    fi

    echo "Ensure task file is executable."
    chmod +x "${GIT_PATH}/task"

    cd "$GIT_PATH"
    COMMANDS=$(echo "$TASK_COMMANDS" | tr "," "\n")
    for COMMAND in $COMMANDS; do
        echo "Run task command: $COMMAND"
        ./task "$COMMAND"
    done

fi

echo 'Template Caddyfile.'
cat > /etc/caddy/Caddyfile <<EOF
:80 {
    root * ${GIT_PATH}/${CADDY_ROOT}
    file_server
    try_files {path} {path}/ /index.html
    encode gzip
    header {
        X-Content-Type-Options nosniff
        X-Frame-Options DENY
        X-XSS-Protection "1; mode=block"
        Referrer-Policy strict-origin-when-cross-origin
    }
    @static {
        file
        path *.css *.js *.png *.jpg *.jpeg *.gif *.ico *.svg *.woff *.woff2 *.ttf *.eot
    }
    header @static Cache-Control "public, max-age=31536000, immutable"
}
EOF

echo 'Start Caddy.'
exec caddy run --config /etc/caddy/Caddyfile --adapter caddyfile