{
  "widgettype": "Page",
  "options": {
    "title": "合同编辑",
    "style": {"height": "100vh", "padding": "0"}
  },
  "subwidgets": [
    {
      "widgettype": "VBox",
      "options": {"style": {"padding": "16px", "flex": 1, "overflow": "auto"}},
      "subwidgets": [
        {
          "widgettype": "Form",
          "id": "contract_form",
          "options": {
            "submit_url": "{{entire_url('api/contracts_create.dspy')}}",
            "method": "POST",
            "layout": "vertical",
            "style": {"maxWidth": "600px"},
            "fields": [
              {"name": "contract_number", "label": "合同编号", "uitype": "text", "required": true},
              {"name": "title", "label": "合同名称", "uitype": "text", "required": true},
              {"name": "party_a", "label": "甲方", "uitype": "text", "required": true},
              {"name": "party_b", "label": "乙方", "uitype": "text", "required": true},
              {"name": "contract_type", "label": "合同类型", "uitype": "code", "required": true, "data": [
                {"value": "sales", "text": "销售合同"},
                {"value": "purchase", "text": "采购合同"},
                {"value": "service", "text": "服务合同"},
                {"value": "other", "text": "其他"}
              ]},
              {"name": "amount", "label": "合同金额", "uitype": "number"},
              {"name": "start_date", "label": "开始日期", "uitype": "date", "required": true},
              {"name": "end_date", "label": "结束日期", "uitype": "date", "required": true},
              {"name": "sign_date", "label": "签署日期", "uitype": "date"},
              {"name": "owner_id", "label": "负责人ID", "uitype": "text", "required": true},
              {"name": "org_id", "label": "组织ID", "uitype": "text"},
              {"name": "status", "label": "状态", "uitype": "code", "data": [
                {"value": "draft", "text": "草稿"},
                {"value": "active", "text": "生效"},
                {"value": "expired", "text": "过期"},
                {"value": "terminated", "text": "终止"}
              ]}
            ],
            "buttons": [
              {"type": "submit", "text": "保存", "variant": "primary"},
              {"type": "button", "text": "取消", "action": "navigate('main/contract_management/contract_list.ui')"}
            ]
          }
        }
      ]
    }
  ]
}