{
    "version": "1.1",
    "custom_checks": {
        "is_valid_date": "检查日期格式是否为 YYYY-MM-DD",
        "is_positive_number": "检查是否为正数（整数或浮点数）",
        "is_positive_integer": "检查是否为正整数",
        "is_valid_vehicle": "检查交通工具能否落到财务系统的下拉框上（含 train→火车 等别名）"
    },
    "travel": {
        "description": "差旅报销校验规则",
        "fields": [
            {
                "path": ["basic_info", "travel_purpose"],
                "required": true,
                "check_empty": true,
                "max_len_bytes": 100,
                "description": "出差事由"
            },
            {
                "path": ["basic_info", "travel_location"],
                "required": true,
                "check_empty": true,
                "description": "出差地点"
            },
            {
                "path": ["basic_info", "start_date"],
                "required": true,
                "check_empty": true,
                "custom_check": "is_valid_date",
                "description": "出差开始日期"
            },
            {
                "path": ["basic_info", "end_date"],
                "required": true,
                "check_empty": true,
                "custom_check": "is_valid_date",
                "description": "出差结束日期"
            }
        ],
        "arrays": [
            {
                "path": ["reimbursement_details", "transport_fee"],
                "min_items": 1,
                "description": "交通费用明细",
                "element_fields": [
                    {"path": ["vehicle_type"], "required": true, "check_empty": true, "custom_check": "is_valid_vehicle", "description": "交通工具类型（火车/汽车/轮船/自带车/公务车/飞机/租车/自驾车，也接受 train/car/plane 等英文写法）"},
                    {"path": ["start_date"], "required": true, "check_empty": true, "custom_check": "is_valid_date", "description": "出发日期"},
                    {"path": ["end_date"], "required": true, "check_empty": true, "custom_check": "is_valid_date", "description": "到达日期"},
                    {"path": ["departure_place"], "required": true, "check_empty": true, "description": "出发地"},
                    {"path": ["arrival_place"], "required": true, "check_empty": true, "description": "目的地"},
                    {"path": ["amount"], "required": true, "check_empty": true, "custom_check": "is_positive_number", "description": "金额"},
                    {"path": ["bill_count"], "required": true, "check_empty": true, "custom_check": "is_positive_integer", "description": "票据张数"},
                    {"path": ["remark"], "required": true, "check_empty": false, "max_len_bytes": 100, "description": "备注说明（财务后端超宽直接 500，见 config/README 或 AGENTS.md）"}
                ]
            },
            {
                "path": ["reimbursement_details", "hotel_fee"],
                "min_items": 0,
                "description": "住宿费用明细（没有住宿时可整段缺省）",
                "element_fields": [
                    {"path": ["checkin_date"], "required": true, "check_empty": true, "custom_check": "is_valid_date", "description": "入住日期"},
                    {"path": ["checkout_date"], "required": true, "check_empty": true, "custom_check": "is_valid_date", "description": "退房日期"},
                    {"path": ["days"], "required": true, "check_empty": true, "custom_check": "is_positive_integer", "description": "住宿晚数"},
                    {"path": ["person_count"], "required": true, "check_empty": true, "custom_check": "is_positive_integer", "description": "住宿人数"},
                    {"path": ["invoice_amount"], "required": true, "check_empty": true, "custom_check": "is_positive_number", "description": "发票金额"},
                    {"path": ["reimburse_amount"], "required": true, "check_empty": true, "custom_check": "is_positive_number", "description": "报销金额"},
                    {"path": ["remark"], "required": true, "check_empty": false, "max_len_bytes": 100, "description": "备注说明"}
                ]
            },
            {
                "path": ["reimbursement_details", "conference_fee"],
                "min_items": 0,
                "description": "会务费/培训费明细（没有会务费时可整段缺省）",
                "element_fields": [
                    {"path": ["bill_count"], "required": true, "check_empty": true, "custom_check": "is_positive_integer", "description": "票据张数"},
                    {"path": ["amount"], "required": true, "check_empty": true, "custom_check": "is_positive_number", "description": "金额"},
                    {"path": ["remark"], "required": true, "check_empty": false, "max_len_bytes": 100, "description": "备注说明"}
                ]
            },
            {
                "path": ["payment_methods"],
                "min_items": 1,
                "description": "支付方式记录",
                "element_fields": [
                    {"path": ["card_date"], "required": true, "check_empty": true, "custom_check": "is_valid_date", "description": "刷卡日期"},
                    {"path": ["card_amount"], "required": true, "check_empty": true, "custom_check": "is_positive_number", "description": "支付金额"},
                    {"path": ["merchant"], "required": true, "check_empty": true, "max_len_bytes": 100, "description": "商户名称"},
                    {"path": ["remark"], "required": true, "check_empty": false, "max_len_bytes": 100, "description": "备注"}
                ]
            },
            {
                "path": ["subsidy_list"],
                "min_items": 1,
                "description": "补助清单",
                "element_fields": [
                    {"path": ["person_id"], "required": true, "check_empty": true, "description": "人员工号"},
                    {"path": ["person_name"], "required": true, "check_empty": true, "description": "人员姓名"},
                    {"path": ["start_date"], "required": true, "check_empty": true, "custom_check": "is_valid_date", "description": "补助开始日期"},
                    {"path": ["end_date"], "required": true, "check_empty": true, "custom_check": "is_valid_date", "description": "补助结束日期"},
                    {"path": ["days"], "required": true, "check_empty": true, "custom_check": "is_positive_integer", "description": "补助天数"}
                ]
            },
            {
                "path": ["attachments"],
                "min_items": 0,
                "description": "附件列表",
                "element_fields": [
                    {"path": ["filename"], "required": true, "check_empty": true, "description": "文件名"},
                    {"path": ["attachment_type"], "required": true, "check_empty": true, "description": "附件类型"},
                    {"path": ["attachment_desc"], "required": false, "check_empty": false, "max_len_bytes": 100, "description": "附件说明"}
                ]
            }
        ]
    },
    "normal": {
        "description": "普通报销校验规则",
        "fields": [
            {
                "path": ["basic_info", "reimbursement_description"],
                "required": true,
                "check_empty": true,
                "max_len_bytes": 40,
                "description": "报销说明（财务系统里这栏很短，20 个汉字以内）"
            },
            {
                "path": ["reimbursement_details", "total_invoices"],
                "required": true,
                "check_empty": true,
                "custom_check": "is_positive_integer",
                "description": "发票总数"
            },
            {
                "path": ["reimbursement_details", "total_amount"],
                "required": true,
                "check_empty": true,
                "custom_check": "is_positive_number",
                "description": "总金额"
            }
        ],
        "arrays": [
            {
                "path": ["payment_methods"],
                "min_items": 1,
                "description": "支付方式记录",
                "element_fields": [
                    {"path": ["card_date"], "required": true, "check_empty": true, "custom_check": "is_valid_date", "description": "刷卡日期"},
                    {"path": ["card_amount"], "required": true, "check_empty": true, "custom_check": "is_positive_number", "description": "支付金额"},
                    {"path": ["merchant"], "required": true, "check_empty": true, "max_len_bytes": 100, "description": "商户名称"},
                    {"path": ["remark"], "required": true, "check_empty": false, "max_len_bytes": 100, "description": "备注"}
                ]
            },
            {
                "path": ["attachments"],
                "min_items": 0,
                "description": "附件列表",
                "element_fields": [
                    {"path": ["filename"], "required": true, "check_empty": true, "description": "文件名"},
                    {"path": ["attachment_type"], "required": true, "check_empty": true, "description": "附件类型"},
                    {"path": ["attachment_desc"], "required": false, "check_empty": false, "max_len_bytes": 100, "description": "附件说明"}
                ]
            }
        ]
    }
}