import Foundation
@testable import suixinkan

/// 从已实测响应整理的脱敏测试夹具；覆盖变化场景时显式覆盖字段，不宣称为真实服务端返回。
enum StoreAccountDeregistrationFixtures {
    /// 2026-08-28 15:29 实测 userinfo 的150015响应；无time字段，data.status为字符串。
    static let observedCoolingRestrictionEnvelope = Data(#"""
    {
      "code": 150015,
      "msg": "账号处于注销冷静期，请先撤销注销后再继续使用",
      "data": {
        "status": "cooling",
        "cooling_until": "2026-09-04 15:27:24",
        "remaining_seconds": 604681
      }
    }
    """#.utf8)

    /// 同次150015请求后的真实status响应，仅将注销记录ID替换为测试值301。
    static let observedCoolingStatusEnvelope = Data(#"""
    {
      "code": 100000,
      "msg": "success",
      "data": {
        "deregister": {
          "id": 301,
          "status": 1,
          "status_label": "冷静期中",
          "reason": "Test account deregistration",
          "apply_time": "2026-08-28 15:27:24",
          "cooling_until": "2026-09-04 15:27:24",
          "remaining_seconds": 604681,
          "cancel_time": null,
          "blocked_code": "",
          "blocked_reason": "",
          "completed_at": null
        }
      },
      "time": "2026-08-28 15:29:22"
    }
    """#.utf8)

    /// 真实样例的结构，身份 ID 替换为测试用的 101/201。
    static func eligibilityData(overrides: [String: Any] = [:]) throws -> Data {
        var data: [String: Any] = [
            "can_apply": false, "store_user_id": 101, "finance_identity_id": 201,
            "wallet_balance_fen": 0, "wallet_balance": "0.00", "points_balance": 0,
            "wallet_waived": false, "points_waived": false,
            "unfulfilled_count": 37, "fulfillment_in_progress_count": 0,
            "risk_end_at": "2026-08-27 15:47:32", "eligible_at": "2026-09-03 15:47:32", "risk_window_hours": 168,
            "blockers": [
                ["code": "ORDER_UNFULFILLED", "message": "账户仍有未履约订单或带单", "action": "complete_orders"],
                ["code": "RISK_WINDOW_NOT_EXPIRED", "message": "最后一笔业务的风险结束时间尚未超过7天", "action": "wait_risk_window"],
                ["code": "WALLET_WAIVER_MISSING", "message": "请先确认放弃现金余额", "action": "confirm_wallet_waiver"],
                ["code": "POINTS_WAIVER_MISSING", "message": "请先确认放弃积分", "action": "confirm_points_waiver"],
            ],
            "deregister": NSNull(),
        ]
        data.merge(overrides) { _, new in new }
        return try JSONSerialization.data(withJSONObject: data)
    }

    /// 解码已实测结构，供协议替身返回值使用。
    static func eligibility(overrides: [String: Any] = [:]) throws -> StoreAccountDeregistrationEligibility {
        try JSONDecoder().decode(StoreAccountDeregistrationEligibility.self, from: eligibilityData(overrides: overrides))
    }

    /// 构造所有条件满足的规则测试输入；不是通过真实资产放弃或申请获得的响应。
    static func ready(overrides: [String: Any] = [:]) throws -> StoreAccountDeregistrationEligibility {
        var fields: [String: Any] = ["can_apply": true, "wallet_waived": true, "points_waived": true,
                                    "unfulfilled_count": 0, "blockers": []]
        fields.merge(overrides) { _, new in new }
        return try eligibility(overrides: fields)
    }

    /// 2026-08-28 零资产确认后的真实草稿结构，仅将记录 ID 替换为测试值 301。
    static func draftRecord(overrides: [String: Any] = [:]) -> [String: Any] {
        var record: [String: Any] = [
            "id": 301, "status": 0, "status_label": "待确认", "reason": "",
            "apply_time": NSNull(), "cooling_until": NSNull(), "remaining_seconds": 0,
            "cancel_time": NSNull(), "blocked_code": "", "blocked_reason": "", "completed_at": NSNull(),
        ]
        record.merge(overrides) { _, new in new }
        return record
    }

    /// 解码实测草稿状态；覆盖字段时用于验证未知或矛盾记录不会放行。
    static func draftStatus(overrides: [String: Any] = [:]) throws -> StoreAccountDeregistrationStatus {
        try JSONDecoder().decode(StoreAccountDeregistrationStatus.self,
            from: JSONSerialization.data(withJSONObject: ["deregister": draftRecord(overrides: overrides)]))
    }

    /// 两次真实确认之间及之后的条件结构，没有历史业务时风险时间为 null。
    static func draftEligibility(pointsWaived: Bool) throws -> StoreAccountDeregistrationEligibility {
        try eligibility(overrides: [
            "can_apply": pointsWaived, "wallet_waived": true, "points_waived": pointsWaived,
            "unfulfilled_count": 0, "risk_end_at": NSNull(), "eligible_at": NSNull(),
            "blockers": pointsWaived ? [] : [
                ["code": "POINTS_WAIVER_MISSING", "message": "请先确认放弃积分", "action": "confirm_points_waiver"],
            ],
            "deregister": draftRecord(),
        ])
    }

    /// 实测的冷静期和主动撤销记录，ID 脱敏；覆盖字段只用于防御性测试。
    static func lifecycleRecord(cancelled: Bool = false, overrides: [String: Any] = [:]) -> [String: Any] {
        var record = draftRecord(overrides: [
            "status": cancelled ? 9 : 1, "status_label": cancelled ? "已撤销" : "冷静期中",
            "reason": "API test; cancel immediately", "apply_time": "2026-08-28 14:23:40",
            "cooling_until": "2026-09-04 14:23:40", "remaining_seconds": cancelled ? 0 : 604776,
            "cancel_time": cancelled ? "2026-08-28 14:24:04" : NSNull(),
            "blocked_code": cancelled ? "CANCELLED_BY_USER" : "",
            "blocked_reason": cancelled ? "用户主动撤销注销" : "",
        ])
        record.merge(overrides) { _, new in new }
        return record
    }

    /// 解码冷静期/已撤销实测样例。
    static func lifecycleStatus(cancelled: Bool = false, overrides: [String: Any] = [:]) throws -> StoreAccountDeregistrationStatus {
        try JSONDecoder().decode(StoreAccountDeregistrationStatus.self,
            from: JSONSerialization.data(withJSONObject: ["deregister": lifecycleRecord(cancelled: cancelled, overrides: overrides)]))
    }

    /// 冷静期及撤销后真实查询均返回两项确认失效，不能在冷静期重新确认资产。
    static func lifecycleEligibility(cancelled: Bool = false) throws -> StoreAccountDeregistrationEligibility {
        try eligibility(overrides: ["unfulfilled_count": 0, "risk_end_at": NSNull(), "eligible_at": NSNull(),
            "blockers": [
                ["code": "WALLET_WAIVER_MISSING", "message": "请先确认放弃现金余额", "action": "confirm_wallet_waiver"],
                ["code": "POINTS_WAIVER_MISSING", "message": "请先确认放弃积分", "action": "confirm_points_waiver"],
            ], "deregister": lifecycleRecord(cancelled: cancelled)])
    }

    /// 统一成功 Envelope，仅用于 MockURLSession。
    static func envelope(_ data: Data) throws -> Data {
        try JSONSerialization.data(withJSONObject: ["code": 100000, "msg": "success",
                                                    "data": JSONSerialization.jsonObject(with: data)])
    }
}