package financewithdrawal

import "hyapp-admin-server/internal/model"

type withdrawalApplicationDTO struct {
	ID                  uint   `json:"id"`
	AppCode             string `json:"appCode"`
	AppName             string `json:"appName"`
	UserID              string `json:"userId"`
	SalaryAssetType     string `json:"salaryAssetType"`
	WithdrawAmount      string `json:"withdrawAmount"`
	WithdrawAmountMinor int64  `json:"withdrawAmountMinor"`
	PointGrossAmount    int64  `json:"pointGrossAmount,omitempty"`
	PointFeeAmount      int64  `json:"pointFeeAmount,omitempty"`
	PointNetAmount      int64  `json:"pointNetAmount,omitempty"`
	PointsPerUSD        int64  `json:"pointsPerUsd,omitempty"`
	PointFeeBPS         int32  `json:"pointFeeBps,omitempty"`
	PointPolicyInstance string `json:"pointPolicyInstanceCode,omitempty"`
	WithdrawMethod      string `json:"withdrawMethod"`
	WithdrawAddress     string `json:"withdrawAddress"`
	FreezeTransactionID string `json:"freezeTransactionId"`
	AuditTransactionID  string `json:"auditTransactionId"`
	Status              string `json:"status"`
	ApproverUserID      *uint  `json:"approverUserId"`
	ApproverName        string `json:"approverName"`
	AuditRemark         string `json:"auditRemark"`
	AuditImageURL       string `json:"auditImageUrl"`
	ApprovedAtMS        *int64 `json:"approvedAtMs"`
	CreatedAtMS         int64  `json:"createdAtMs"`
	UpdatedAtMS         int64  `json:"updatedAtMs"`
}

func withdrawalApplicationDTOFromModel(item model.UserWithdrawalApplication) withdrawalApplicationDTO {
	dto := withdrawalApplicationDTO{
		ID:                  item.ID,
		AppCode:             item.AppCode,
		AppName:             item.AppCode,
		UserID:              item.UserID,
		SalaryAssetType:     item.SalaryAssetType,
		WithdrawAmount:      item.WithdrawAmount,
		WithdrawAmountMinor: item.WithdrawAmountMinor,
		WithdrawMethod:      item.WithdrawMethod,
		WithdrawAddress:     item.WithdrawAddress,
		FreezeTransactionID: item.FreezeTransactionID,
		AuditTransactionID:  item.AuditTransactionID,
		Status:              item.Status,
		ApproverUserID:      item.ApproverUserID,
		ApproverName:        item.ApproverName,
		AuditRemark:         item.AuditRemark,
		AuditImageURL:       item.AuditImageURL,
		ApprovedAtMS:        item.ApprovedAtMS,
		CreatedAtMS:         item.CreatedAtMS,
		UpdatedAtMS:         item.UpdatedAtMS,
	}
	if isPointWithdrawalAssetType(item.SalaryAssetType) {
		feePoints, netPoints, pointsPerUSD, feeBPS := pointWithdrawalSnapshot(item)
		dto.PointGrossAmount = item.WithdrawAmountMinor
		dto.PointFeeAmount = feePoints
		dto.PointNetAmount = netPoints
		dto.PointsPerUSD = pointsPerUSD
		dto.PointFeeBPS = feeBPS
		dto.PointPolicyInstance = item.PointPolicyInstance
	}
	return dto
}

func pointWithdrawalSnapshot(item model.UserWithdrawalApplication) (feePoints int64, netPoints int64, pointsPerUSD int64, feeBPS int32) {
	pointsPerUSD = item.PointsPerUSD
	if pointsPerUSD <= 0 {
		pointsPerUSD = pointWithdrawalDefaultPointsPerUSD
	}
	feeBPS = item.PointFeeBPS
	if feeBPS < 0 || feeBPS > 10000 {
		feeBPS = pointWithdrawalDefaultFeeBPS
	}
	feePoints, netPoints = item.PointFeeAmount, item.PointNetAmount
	if feePoints < 0 || netPoints < 0 || feePoints+netPoints != item.WithdrawAmountMinor {
		// 090 之前的存量 POINT 申请没有快照；只对这些不一致旧行按历史 5% 默认回填。
		feePoints = item.WithdrawAmountMinor * int64(feeBPS) / 10000
		netPoints = item.WithdrawAmountMinor - feePoints
	}
	return
}

func withdrawalApplicationDTOsFromModel(items []model.UserWithdrawalApplication) []withdrawalApplicationDTO {
	out := make([]withdrawalApplicationDTO, 0, len(items))
	for _, item := range items {
		out = append(out, withdrawalApplicationDTOFromModel(item))
	}
	return out
}