package wallet

import (
	"context"
	"strings"
	"time"

	"hyapp/pkg/appcode"
	"hyapp/pkg/xerr"
	"hyapp/services/wallet-service/internal/domain/ledger"
)

// ListPointWithdrawalCoinSellers 返回服务端过滤后的币商白名单；国家由可信用户资料提供而不是客户端表单。
func (s *Service) ListPointWithdrawalCoinSellers(ctx context.Context, appCode string, countryCode string, includeDisabled bool) ([]ledger.PointWithdrawalCoinSellerConfig, error) {
	if strings.TrimSpace(appCode) == "" {
		return nil, xerr.New(xerr.InvalidArgument, "app_code is required")
	}
	if s.repository == nil {
		return nil, xerr.New(xerr.Unavailable, "wallet repository is not configured")
	}
	appCode = appcode.Normalize(appCode)
	return s.repository.ListPointWithdrawalCoinSellers(appcode.WithContext(ctx, appCode), appCode, strings.ToUpper(strings.TrimSpace(countryCode)), includeDisabled)
}

// TransferPointToCoinSeller 验证客户端允许提交的最小字段；兑换比例由 repository 事务内锁定配置解析。
func (s *Service) TransferPointToCoinSeller(ctx context.Context, command ledger.PointToCoinSellerCommand) (ledger.PointToCoinSellerReceipt, error) {
	if strings.TrimSpace(command.AppCode) == "" || strings.TrimSpace(command.CommandID) == "" || command.SourceUserID <= 0 || command.SellerUserID <= 0 || command.PointAmount <= 0 {
		return ledger.PointToCoinSellerReceipt{}, xerr.New(xerr.InvalidArgument, "point coin seller transfer command is incomplete")
	}
	command.AppCode = appcode.Normalize(command.AppCode)
	command.CommandID = strings.TrimSpace(command.CommandID)
	command.SourceCountryCode = strings.ToUpper(strings.TrimSpace(command.SourceCountryCode))
	command.Reason = strings.TrimSpace(command.Reason)
	if len(command.CommandID) > 128 || len(command.SourceCountryCode) > 16 || len(command.Reason) > 512 {
		return ledger.PointToCoinSellerReceipt{}, xerr.New(xerr.InvalidArgument, "point coin seller transfer text fields are too long")
	}
	if s.repository == nil {
		return ledger.PointToCoinSellerReceipt{}, xerr.New(xerr.Unavailable, "wallet repository is not configured")
	}
	return s.repository.TransferPointToCoinSeller(appcode.WithContext(ctx, command.AppCode), command)
}

// GetPointWithdrawalConfig 读取已发布政策快照；nowMS 由服务端补齐，避免客户端选择历史政策。
func (s *Service) GetPointWithdrawalConfig(ctx context.Context, appCode string, regionID int64, nowMS int64) (ledger.PointWithdrawalRuntimeConfig, error) {
	if strings.TrimSpace(appCode) == "" || regionID < 0 {
		return ledger.PointWithdrawalRuntimeConfig{}, xerr.New(xerr.InvalidArgument, "point withdrawal config query is invalid")
	}
	if s.repository == nil {
		return ledger.PointWithdrawalRuntimeConfig{}, xerr.New(xerr.Unavailable, "wallet repository is not configured")
	}
	if nowMS <= 0 {
		nowMS = time.Now().UnixMilli()
	}
	appCode = appcode.Normalize(appCode)
	return s.repository.GetPointWithdrawalConfig(appcode.WithContext(ctx, appCode), appCode, regionID, nowMS)
}