"""
生成历史API接口
"""
from flask import Blueprint, request, jsonify
from backend.models.database import get_generation_history

history_bp = Blueprint('history', __name__)

@history_bp.route('/api/history', methods=['GET'])
def get_history():
    """
    获取生成历史记录
    查询参数：
    - page: 页码 (默认1)
    - limit: 每页数量 (默认20)
    """
    try:
        page = request.args.get('page', 1, type=int)
        limit = request.args.get('limit', 20, type=int)
        
        # 参数验证
        if page < 1:
            page = 1
        if limit < 1 or limit > 100:
            limit = 20
            
        history_data = get_generation_history(page, limit)
        
        return jsonify({
            'success': True,
            'data': history_data['records'],
            'pagination': {
                'page': page,
                'limit': limit,
                'total': history_data['total'],
                'pages': history_data['pages']
            }
        })
        
    except Exception as e:
        return jsonify({'error': f'获取历史记录失败: {str(e)}'}), 500