# -*- coding: utf-8 -*-
"""
分析相关API蓝图
处理数据分析、报告生成等功能
"""

import os
import logging
from flask import Blueprint, request, jsonify, send_file
from src.core.query_optimizer import query_optimizer

logger = logging.getLogger(__name__)

analytics_bp = Blueprint('analytics', __name__, url_prefix='/api/analytics')


@analytics_bp.route('')
def get_analytics():
    """获取分析数据（支持租户筛选和时间范围）"""
    try:
        time_range = request.args.get('timeRange', '30')
        tenant_id = request.args.get('tenant_id')

        try:
            days = int(time_range)
        except (ValueError, TypeError):
            days = 30

        analytics = query_optimizer.get_analytics_optimized(days, tenant_id=tenant_id)
        return jsonify(analytics)
    except Exception as e:
        logger.error(f"获取分析数据失败: {e}")
        return jsonify({"error": str(e)}), 500


@analytics_bp.route('/export')
def export_analytics():
    """导出分析报告"""
    try:
        from openpyxl import Workbook
        from openpyxl.styles import Font

        analytics = query_optimizer.get_analytics_optimized(30)

        wb = Workbook()
        ws = wb.active
        ws.title = "分析报告"
        ws['A1'] = 'TSP智能助手分析报告'
        ws['A1'].font = Font(size=16, bold=True)
        ws['A3'] = '工单统计'
        ws['A3'].font = Font(bold=True)
        ws['A4'] = '总工单数'
        ws['B4'] = analytics.get('workorders', {}).get('total', 0)
        ws['A5'] = '待处理'
        ws['B5'] = analytics.get('workorders', {}).get('open', 0)
        ws['A6'] = '已解决'
        ws['B6'] = analytics.get('workorders', {}).get('resolved', 0)

        report_path = 'uploads/analytics_report.xlsx'
        os.makedirs('uploads', exist_ok=True)
        wb.save(report_path)

        return send_file(report_path, as_attachment=True, download_name='analytics_report.xlsx')
    except Exception as e:
        logger.error(f"导出分析报告失败: {e}")
        return jsonify({"error": str(e)}), 500