from __future__ import annotations

from datetime import datetime
from flask import Flask, jsonify, request

from app.services import notifications as notif


def create_app(crawler) -> Flask:
    app = Flask(__name__)

    @app.get('/health')
    def health():
        return jsonify({"status": "healthy", "timestamp": datetime.now().isoformat()})

    @app.get('/stats')
    def stats():
        if crawler:
            return jsonify(crawler.stats)
        return jsonify({"error": "Crawler not initialized"}), 500

    @app.get('/check')
    def manual_check():
        if not crawler:
            return jsonify({"error": "Crawler not initialized"}), 500
        result = crawler.run_check() or []
        return jsonify({"result": f"Found {len(result)} new picks"})

    @app.get('/notify_test')
    def notify_test():
        if not crawler:
            return jsonify({"error": "Crawler not initialized"}), 500
        channel = (request.args.get('channel') or 'email').lower()
        test_pick = [notif.build_test_pick()]
        try:
            if channel == 'email':
                if not crawler.config.email:
                    return jsonify({"error": "Email config not set"}), 400
                notif.send_email(test_pick, crawler.config.email)
            elif channel == 'webhook':
                if not crawler.config.webhook_url:
                    return jsonify({"error": "Webhook URL not set"}), 400
                notif.send_webhook(test_pick, crawler.config.webhook_url)
            elif channel == 'discord':
                if not crawler.config.discord_webhook:
                    return jsonify({"error": "Discord webhook not set"}), 400
                notif.send_discord(test_pick, crawler.config.discord_webhook)
            else:
                return jsonify({"error": f"Unsupported channel: {channel}"}), 400
            return jsonify({"result": f"Test notification sent via {channel}"})
        except Exception as e:
            crawler.logger.error(f"測試通知發送失敗: {e}")
            return jsonify({"error": str(e)}), 500

    return app