"""
DIT_C 主程式入口
"""

from flask import Flask, jsonify
from config import Config
from models import db


def create_app(config_class=Config):
    """應用程式工廠"""
    app = Flask(__name__)
    app.config.from_object(config_class)

    # 初始化擴展
    db.init_app(app)

    # 註冊 Blueprint
    from routes.api import api_bp
    app.register_blueprint(api_bp)

    # 健康檢查端點
    @app.route('/health')
    def health_check():
        return jsonify({"status": "ok", "message": "DIT_C is running"})

    # 測試 LLM 連線
    @app.route('/test-llm')
    def test_llm():
        from services.llm_service import llm_service, LLMServiceError
        try:
            models = llm_service.get_available_models()
            return jsonify({
                "status": "ok",
                "available_models": models,
                "default_model": Config.OLLAMA_DEFAULT_MODEL
            })
        except LLMServiceError as e:
            return jsonify({"status": "error", "message": str(e)}), 500

    return app


if __name__ == '__main__':
    app = create_app()
    app.run(host='0.0.0.0', port=5000, debug=Config.DEBUG)