"""
LLM API endpoints to be added to app.py
Add these imports at the top and routes before the error handlers
"""

# ==================== ADD THIS IMPORT AT THE TOP ====================
# from llm_config import LLMConfig
# llm_config = LLMConfig()

# ==================== ADD THESE ROUTES BEFORE ERROR HANDLERS ====================

@app.route('/api/llm/config', methods=['GET'])
def get_llm_config():
    """獲取 LLM API 配置狀態"""
    try:
        config_data = {}
        for api_name, api_config in llm_config.apis.items():
            config_data[api_name] = {
                'name': api_config['name'],
                'enabled': api_config['enabled'],
                'endpoint': api_config['endpoint'],
                'api_key': api_config['api_key'][:8] + '...' if api_config['api_key'] else ''
            }

        return jsonify(config_data)
    except Exception as e:
        return jsonify({
            'success': False,
            'error': f'獲取配置失敗: {str(e)}'
        }), 500


@app.route('/api/llm/test/<api_name>', methods=['GET'])
def test_llm_api(api_name):
    """測試單個 LLM API 連線"""
    try:
        if api_name not in llm_config.apis:
            return jsonify({
                'success': False,
                'message': f'不支援的 API: {api_name}'
            }), 400

        # 執行連線測試
        if api_name == 'gemini':
            success, message = llm_config.test_gemini_connection()
        elif api_name == 'deepseek':
            success, message = llm_config.test_deepseek_connection()
        elif api_name == 'openai':
            success, message = llm_config.test_openai_connection()
        else:
            return jsonify({
                'success': False,
                'message': f'未實作的 API: {api_name}'
            }), 400

        return jsonify({
            'success': success,
            'message': message
        })

    except Exception as e:
        return jsonify({
            'success': False,
            'message': f'測試失敗: {str(e)}'
        }), 500


@app.route('/api/llm/test-all', methods=['GET'])
def test_all_llm_apis():
    """測試所有已配置的 LLM API"""
    try:
        results = llm_config.test_all_connections()

        response = {}
        for api_name, (success, message) in results.items():
            response[api_name] = {
                'success': success,
                'message': message
            }

        return jsonify({
            'success': True,
            'results': response
        })

    except Exception as e:
        return jsonify({
            'success': False,
            'error': f'測試失敗: {str(e)}'
        }), 500


@app.route('/api/llm/generate', methods=['POST'])
def generate_llm_text():
    """
    使用 LLM API 生成文字
    Request body: {
        "api": "gemini" | "deepseek" | "openai",
        "prompt": "提示詞",
        "max_tokens": 2000
    }
    """
    try:
        data = request.get_json()

        if not data:
            return jsonify({
                'success': False,
                'error': '請提供有效的 JSON 資料'
            }), 400

        api_name = data.get('api', 'gemini')
        prompt = data.get('prompt', '')
        max_tokens = data.get('max_tokens', 2000)

        if not prompt:
            return jsonify({
                'success': False,
                'error': '請提供提示詞'
            }), 400

        # 執行文字生成
        if api_name == 'gemini':
            success, result = llm_config.generate_text_gemini(prompt, max_tokens)
        elif api_name == 'deepseek':
            success, result = llm_config.generate_text_deepseek(prompt, max_tokens)
        elif api_name == 'openai':
            model = data.get('model', 'gpt-3.5-turbo')
            success, result = llm_config.generate_text_openai(prompt, model, max_tokens)
        else:
            return jsonify({
                'success': False,
                'error': f'不支援的 API: {api_name}'
            }), 400

        if success:
            return jsonify({
                'success': True,
                'text': result
            })
        else:
            return jsonify({
                'success': False,
                'error': result
            }), 500

    except Exception as e:
        return jsonify({
            'success': False,
            'error': f'生成失敗: {str(e)}'
        }), 500


# ==================== ADD ROUTE FOR API TEST PAGE ====================

@app.route('/api-test')
def api_test_page():
    """返回 API 測試頁面"""
    return send_from_directory('.', 'api_test.html')