#!/usr/bin/env bash
# bin/docker-entrypoint - run 2dph tools inside the container.
#
# API image (Zig CGO binaries):
#   serve | search | watch
# Index image (Python write path, compose profile `index`):
#   index | extract | audit | search (deprecated python wrapper)
#   mail-sync [N]   ETL loop: sync -> import; optional index (default 300s)
#
# Usage comment starts at line 2 (self-describing convention).
set -euo pipefail

CMD="${1:-shell}"
shift || true

if [ -x /usr/local/bin/brain-serve ]; then
	case "$CMD" in
		shell) exec bash ;;
		serve) exec /usr/local/bin/brain-serve "$@" ;;
		search) exec /usr/local/bin/brain-search "$@" ;;
		watch) exec /usr/local/bin/brain-watch "$@" ;;
		index)
			echo "index is the Python sidecar: docker compose --profile index run --rm index" >&2
			exit 2
			;;
		*) echo "unknown command: $CMD (api: serve|search|watch)" >&2; exit 2 ;;
	esac
fi

case "$CMD" in
	shell) exec bash ;;
	search) exec "$KB_PY" /app/bin/kb/search "$@" ;;
	index) exec "$KB_PY" /app/bin/kb/index --with-mail "$@" ;;
	watch) exec /app/bin/watch "$@" ;;
	serve) exec /app/bin/serve "$@" ;;
	extract) exec "$KB_PY" /app/bin/facts/extract "$@" ;;
	audit) exec "$KB_PY" /app/bin/facts/audit "$@" ;;
	mail-sync)
		# ETL: pull mail, convert to md when new>0. Full --rebuild is opt-in
		# (MAIL_SYNC_INDEX=1) — ~29k leaf rebuild is minutes, not a 10s loop.
		interval="${1:-300}"
		[ "$interval" -gt 0 ] 2>/dev/null || interval=300
		: "${MAIL_SYNC_ENV:=/secret/mail.env}"
		: "${MAIL_SYNC_SRC:=onlyoffice,gmail}"
		: "${MAIL_SYNC_OUT:=/app/var/mail}"
		: "${MAIL_SYNC_INDEX:=0}"
		while true; do
			out="$("/app/bin/mail-sync" --source "$MAIL_SYNC_SRC" --env "$MAIL_SYNC_ENV" --out "$MAIL_SYNC_OUT" 2>&1)" || true
			echo "$out"
			new="$(printf '%s\n' "$out" | sed -n 's/.*new=\([0-9]*\).*/\1/p' | tail -1)"
			if [ -n "$new" ] && [ "$new" -gt 0 ] 2>/dev/null; then
				"$KB_PY" /app/bin/mail/import --from-raw "$MAIL_SYNC_OUT" 2>&1 | tail -1
				if [ "$MAIL_SYNC_INDEX" = "1" ]; then
					"$KB_PY" /app/bin/kb/index --rebuild --with-mail 2>&1 | tail -1
				fi
			fi
			sleep "$interval"
		done
		;;
	*) echo "unknown command: $CMD" >&2; exit 2 ;;
esac