114 lines
4.4 KiB
Go
114 lines
4.4 KiB
Go
package mysql
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import (
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"context"
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"database/sql"
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"errors"
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"strconv"
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"strings"
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"hyapp/pkg/appcode"
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"hyapp/pkg/xerr"
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"hyapp/services/wallet-service/internal/domain/ledger"
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)
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const (
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// charge_amount 是 ca15f098 上线时的兼容口径：Agency 比例直接作用于礼物实扣金额，
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// 因而主播比例与 Agency 比例必须共同受 100% 资金池约束。
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agencyPointShareBaseChargeAmount = "charge_amount"
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// host_income 表示平台在主播本次实际 POINT 收益之外追加 Agency 奖励。
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// 该口径先完成礼物类型和主播政策换算，再对最终主播收益取比例，允许出现 100%+20%。
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agencyPointShareBaseHostIncome = "host_income"
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)
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type walletPolicyInstance struct {
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InstanceCode string
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TemplateCode string
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TemplateVersion string
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RegionID int64
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HostPointAsset string
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HostPointRatioPPM int64
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HostGiftTypeRatioEnabled bool
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AgencyPointRatioPPM int64
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AgencyPointShareBase string
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PointsPerUSD int64
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WithdrawFeeBPS int64
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}
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func (r *Repository) resolveActiveWalletPolicy(ctx context.Context, tx *sql.Tx, appCode string, regionID int64, nowMS int64) (walletPolicyInstance, bool, error) {
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appCode = appcode.Normalize(appCode)
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if regionID < 0 {
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return walletPolicyInstance{}, false, xerr.New(xerr.InvalidArgument, "region_id is invalid")
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}
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row := tx.QueryRowContext(ctx, `
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SELECT instance_code, template_code, template_version, region_id, host_point_asset_type,
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host_point_ratio_ppm,
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COALESCE(JSON_UNQUOTE(JSON_EXTRACT(rule_json, '$.host.use_gift_type_ratio')), 'false'),
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agency_point_ratio_ppm,
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COALESCE(JSON_UNQUOTE(JSON_EXTRACT(rule_json, '$.agency.share_base')), 'charge_amount'),
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points_per_usd, withdraw_fee_bps
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FROM wallet_policy_instances
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WHERE app_code = ?
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AND region_id IN (?, 0)
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AND status = 'active'
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AND effective_from_ms <= ?
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AND (effective_to_ms = 0 OR effective_to_ms > ?)
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ORDER BY CASE WHEN region_id = ? THEN 0 ELSE 1 END, published_at_ms DESC, instance_code DESC
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LIMIT 1`,
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appCode, regionID, nowMS, nowMS, regionID,
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)
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var item walletPolicyInstance
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var hostGiftTypeRatioRaw string
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if err := row.Scan(
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&item.InstanceCode,
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&item.TemplateCode,
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&item.TemplateVersion,
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&item.RegionID,
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&item.HostPointAsset,
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&item.HostPointRatioPPM,
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&hostGiftTypeRatioRaw,
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&item.AgencyPointRatioPPM,
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&item.AgencyPointShareBase,
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&item.PointsPerUSD,
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&item.WithdrawFeeBPS,
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); err != nil {
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if errors.Is(err, sql.ErrNoRows) {
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return walletPolicyInstance{}, false, nil
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}
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return walletPolicyInstance{}, false, err
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}
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item.HostPointAsset = strings.ToUpper(strings.TrimSpace(item.HostPointAsset))
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if item.HostPointAsset == "" {
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item.HostPointAsset = ledger.AssetPoint
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}
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parsedGiftTypeRatio, err := strconv.ParseBool(strings.ToLower(strings.TrimSpace(hostGiftTypeRatioRaw)))
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if err != nil {
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return walletPolicyInstance{}, false, xerr.New(xerr.InvalidArgument, "wallet policy host gift type ratio flag is invalid")
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}
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item.HostGiftTypeRatioEnabled = parsedGiftTypeRatio
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item.AgencyPointShareBase = strings.ToLower(strings.TrimSpace(item.AgencyPointShareBase))
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if item.AgencyPointShareBase == "" {
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item.AgencyPointShareBase = agencyPointShareBaseChargeAmount
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}
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if item.HostPointAsset != ledger.AssetPoint ||
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item.HostPointRatioPPM <= 0 || item.HostPointRatioPPM > 1_000_000 ||
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item.AgencyPointRatioPPM < 0 || item.AgencyPointRatioPPM > 1_000_000 ||
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item.PointsPerUSD <= 0 || item.WithdrawFeeBPS < 0 || item.WithdrawFeeBPS > 10_000 {
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return walletPolicyInstance{}, false, xerr.New(xerr.InvalidArgument, "wallet policy instance is invalid")
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}
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switch item.AgencyPointShareBase {
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case agencyPointShareBaseChargeAmount:
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// 旧实例没有 share_base，必须继续执行原先的总资金池守恒约束；否则一次重新发布就会
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// 把历史 70%+20% 配置悄然解释成可超发政策。
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if item.HostPointRatioPPM+item.AgencyPointRatioPPM > 1_000_000 {
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return walletPolicyInstance{}, false, xerr.New(xerr.InvalidArgument, "wallet policy instance is invalid")
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}
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case agencyPointShareBaseHostIncome:
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// host_income 是额外平台奖励，Agency 百分比相对于主播实际到账值独立校验，不能与
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// host_point_ratio_ppm 相加后套用旧的 100% 上限。
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default:
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return walletPolicyInstance{}, false, xerr.New(xerr.InvalidArgument, "wallet policy agency share base is invalid")
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}
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return item, true, nil
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}
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