#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""Contract update API"""
import json, time

result = {'widgettype': 'Message', 'options': {'title': 'Error', 'message': 'Invalid request', 'type': 'error'}}

try:
    record_id = params_kw.get('id', '').strip()
    if not record_id:
        result['options'] = {'title': 'Error', 'message': '记录ID不能为空', 'type': 'error'}
    else:
        dbname = get_module_dbname('contract_management')
        now = time.strftime('%Y-%m-%d %H:%M:%S')
        
        fields = ['contract_number', 'title', 'party_a', 'party_b', 'contract_type', 'amount', 'start_date', 'end_date', 'sign_date', 'status', 'owner_id', 'org_id']
        set_parts = []
        params = {'id': record_id}
        for f in fields:
            val = params_kw.get(f, None)
            if val is not None:
                set_parts.append(f"{f} = %({f})s")
                params[f] = val
        
        set_parts.append("created_at = ${created_at}$")
        params['created_at'] = now
        
        if len(set_parts) <= 1:
            result['options'] = {'title': 'Error', 'message': '没有可更新的字段', 'type': 'error'}
        else:
            sql = f"UPDATE contract SET {', '.join(set_parts)} WHERE id = ${id}$"
            async with DBPools().sqlorContext(dbname) as sor:
                await sor.sqlExe(sql, params)
            result = {'widgettype': 'Message', 'options': {'title': 'Success', 'message': '更新成功', 'type': 'success'}}

except Exception as e:
    result['options'] = {'title': 'Error', 'message': f'更新失败: {str(e)}', 'type': 'error'}

return json.dumps(result, ensure_ascii=False)