365 lines
10 KiB
Go
365 lines
10 KiB
Go
package repository
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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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dbent "github.com/Wei-Shaw/sub2api/ent"
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"github.com/Wei-Shaw/sub2api/ent/apikey"
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"github.com/Wei-Shaw/sub2api/ent/group"
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"github.com/Wei-Shaw/sub2api/internal/pkg/pagination"
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"github.com/Wei-Shaw/sub2api/internal/service"
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"github.com/lib/pq"
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)
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type sqlExecutor interface {
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ExecContext(ctx context.Context, query string, args ...any) (sql.Result, error)
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QueryContext(ctx context.Context, query string, args ...any) (*sql.Rows, error)
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}
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type groupRepository struct {
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client *dbent.Client
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sql sqlExecutor
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}
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func NewGroupRepository(client *dbent.Client, sqlDB *sql.DB) service.GroupRepository {
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return newGroupRepositoryWithSQL(client, sqlDB)
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}
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func newGroupRepositoryWithSQL(client *dbent.Client, sqlq sqlExecutor) *groupRepository {
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return &groupRepository{client: client, sql: sqlq}
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}
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func (r *groupRepository) Create(ctx context.Context, groupIn *service.Group) error {
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builder := r.client.Group.Create().
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SetName(groupIn.Name).
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SetDescription(groupIn.Description).
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SetPlatform(groupIn.Platform).
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SetRateMultiplier(groupIn.RateMultiplier).
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SetIsExclusive(groupIn.IsExclusive).
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SetStatus(groupIn.Status).
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SetSubscriptionType(groupIn.SubscriptionType).
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SetNillableDailyLimitUsd(groupIn.DailyLimitUSD).
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SetNillableWeeklyLimitUsd(groupIn.WeeklyLimitUSD).
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SetNillableMonthlyLimitUsd(groupIn.MonthlyLimitUSD)
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created, err := builder.Save(ctx)
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if err == nil {
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groupIn.ID = created.ID
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groupIn.CreatedAt = created.CreatedAt
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groupIn.UpdatedAt = created.UpdatedAt
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}
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return translatePersistenceError(err, nil, service.ErrGroupExists)
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}
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func (r *groupRepository) GetByID(ctx context.Context, id int64) (*service.Group, error) {
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m, err := r.client.Group.Query().
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Where(group.IDEQ(id)).
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Only(ctx)
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if err != nil {
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return nil, translatePersistenceError(err, service.ErrGroupNotFound, nil)
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}
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out := groupEntityToService(m)
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count, _ := r.GetAccountCount(ctx, out.ID)
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out.AccountCount = count
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return out, nil
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}
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func (r *groupRepository) Update(ctx context.Context, groupIn *service.Group) error {
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updated, err := r.client.Group.UpdateOneID(groupIn.ID).
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SetName(groupIn.Name).
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SetDescription(groupIn.Description).
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SetPlatform(groupIn.Platform).
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SetRateMultiplier(groupIn.RateMultiplier).
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SetIsExclusive(groupIn.IsExclusive).
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SetStatus(groupIn.Status).
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SetSubscriptionType(groupIn.SubscriptionType).
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SetNillableDailyLimitUsd(groupIn.DailyLimitUSD).
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SetNillableWeeklyLimitUsd(groupIn.WeeklyLimitUSD).
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SetNillableMonthlyLimitUsd(groupIn.MonthlyLimitUSD).
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Save(ctx)
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if err != nil {
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return translatePersistenceError(err, service.ErrGroupNotFound, service.ErrGroupExists)
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}
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groupIn.UpdatedAt = updated.UpdatedAt
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return nil
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}
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func (r *groupRepository) Delete(ctx context.Context, id int64) error {
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_, err := r.client.Group.Delete().Where(group.IDEQ(id)).Exec(ctx)
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return err
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}
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func (r *groupRepository) List(ctx context.Context, params pagination.PaginationParams) ([]service.Group, *pagination.PaginationResult, error) {
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return r.ListWithFilters(ctx, params, "", "", nil)
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}
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func (r *groupRepository) ListWithFilters(ctx context.Context, params pagination.PaginationParams, platform, status string, isExclusive *bool) ([]service.Group, *pagination.PaginationResult, error) {
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q := r.client.Group.Query()
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if platform != "" {
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q = q.Where(group.PlatformEQ(platform))
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}
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if status != "" {
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q = q.Where(group.StatusEQ(status))
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}
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if isExclusive != nil {
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q = q.Where(group.IsExclusiveEQ(*isExclusive))
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}
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total, err := q.Count(ctx)
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if err != nil {
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return nil, nil, err
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}
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groups, err := q.
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Offset(params.Offset()).
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Limit(params.Limit()).
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Order(dbent.Asc(group.FieldID)).
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All(ctx)
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if err != nil {
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return nil, nil, err
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}
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groupIDs := make([]int64, 0, len(groups))
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outGroups := make([]service.Group, 0, len(groups))
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for i := range groups {
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g := groupEntityToService(groups[i])
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outGroups = append(outGroups, *g)
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groupIDs = append(groupIDs, g.ID)
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}
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counts, err := r.loadAccountCounts(ctx, groupIDs)
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if err == nil {
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for i := range outGroups {
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outGroups[i].AccountCount = counts[outGroups[i].ID]
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}
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}
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return outGroups, paginationResultFromTotal(int64(total), params), nil
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}
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func (r *groupRepository) ListActive(ctx context.Context) ([]service.Group, error) {
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groups, err := r.client.Group.Query().
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Where(group.StatusEQ(service.StatusActive)).
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Order(dbent.Asc(group.FieldID)).
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All(ctx)
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if err != nil {
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return nil, err
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}
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groupIDs := make([]int64, 0, len(groups))
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outGroups := make([]service.Group, 0, len(groups))
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for i := range groups {
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g := groupEntityToService(groups[i])
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outGroups = append(outGroups, *g)
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groupIDs = append(groupIDs, g.ID)
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}
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counts, err := r.loadAccountCounts(ctx, groupIDs)
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if err == nil {
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for i := range outGroups {
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outGroups[i].AccountCount = counts[outGroups[i].ID]
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}
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}
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return outGroups, nil
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}
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func (r *groupRepository) ListActiveByPlatform(ctx context.Context, platform string) ([]service.Group, error) {
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groups, err := r.client.Group.Query().
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Where(group.StatusEQ(service.StatusActive), group.PlatformEQ(platform)).
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Order(dbent.Asc(group.FieldID)).
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All(ctx)
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if err != nil {
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return nil, err
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}
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groupIDs := make([]int64, 0, len(groups))
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outGroups := make([]service.Group, 0, len(groups))
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for i := range groups {
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g := groupEntityToService(groups[i])
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outGroups = append(outGroups, *g)
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groupIDs = append(groupIDs, g.ID)
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}
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counts, err := r.loadAccountCounts(ctx, groupIDs)
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if err == nil {
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for i := range outGroups {
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outGroups[i].AccountCount = counts[outGroups[i].ID]
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}
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}
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return outGroups, nil
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}
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func (r *groupRepository) ExistsByName(ctx context.Context, name string) (bool, error) {
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return r.client.Group.Query().Where(group.NameEQ(name)).Exist(ctx)
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}
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func (r *groupRepository) GetAccountCount(ctx context.Context, groupID int64) (int64, error) {
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var count int64
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if err := scanSingleRow(ctx, r.sql, "SELECT COUNT(*) FROM account_groups WHERE group_id = $1", []any{groupID}, &count); err != nil {
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return 0, err
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}
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return count, nil
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}
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func (r *groupRepository) DeleteAccountGroupsByGroupID(ctx context.Context, groupID int64) (int64, error) {
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res, err := r.sql.ExecContext(ctx, "DELETE FROM account_groups WHERE group_id = $1", groupID)
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if err != nil {
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return 0, err
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}
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affected, _ := res.RowsAffected()
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return affected, nil
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}
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func (r *groupRepository) DeleteCascade(ctx context.Context, id int64) ([]int64, error) {
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g, err := r.client.Group.Query().Where(group.IDEQ(id)).Only(ctx)
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if err != nil {
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return nil, translatePersistenceError(err, service.ErrGroupNotFound, nil)
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}
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groupSvc := groupEntityToService(g)
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// 使用 ent 事务统一包裹：避免手工基于 *sql.Tx 构造 ent client 带来的驱动断言问题，
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// 同时保证级联删除的原子性。
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tx, err := r.client.Tx(ctx)
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if err != nil && !errors.Is(err, dbent.ErrTxStarted) {
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return nil, err
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}
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exec := r.client
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txClient := r.client
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if err == nil {
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defer func() { _ = tx.Rollback() }()
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exec = tx.Client()
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txClient = exec
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} else {
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// 已处于外部事务中（ErrTxStarted），复用当前 client 参与同一事务。
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}
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// Lock the group row to avoid concurrent writes while we cascade.
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// 这里使用 exec.QueryContext 手动扫描，确保同一事务内加锁并能区分“未找到”与其他错误。
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rows, err := exec.QueryContext(ctx, "SELECT id FROM groups WHERE id = $1 FOR UPDATE", id)
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if err != nil {
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return nil, err
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}
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var lockedID int64
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if rows.Next() {
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if err := rows.Scan(&lockedID); err != nil {
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_ = rows.Close()
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return nil, err
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}
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}
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if err := rows.Close(); err != nil {
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return nil, err
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}
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if err := rows.Err(); err != nil {
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return nil, err
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}
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if lockedID == 0 {
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return nil, service.ErrGroupNotFound
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}
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var affectedUserIDs []int64
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if groupSvc.IsSubscriptionType() {
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rows, err := exec.QueryContext(ctx, "SELECT user_id FROM user_subscriptions WHERE group_id = $1", id)
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if err != nil {
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return nil, err
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}
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for rows.Next() {
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var userID int64
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if scanErr := rows.Scan(&userID); scanErr != nil {
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_ = rows.Close()
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return nil, scanErr
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}
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affectedUserIDs = append(affectedUserIDs, userID)
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}
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if err := rows.Close(); err != nil {
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return nil, err
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}
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if err := rows.Err(); err != nil {
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return nil, err
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}
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if _, err := exec.ExecContext(ctx, "DELETE FROM user_subscriptions WHERE group_id = $1", id); err != nil {
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return nil, err
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}
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}
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// 2. Clear group_id for api keys bound to this group.
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if _, err := txClient.ApiKey.Update().
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Where(apikey.GroupIDEQ(id)).
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ClearGroupID().
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Save(ctx); err != nil {
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return nil, err
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}
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// 3. Remove the group id from users.allowed_groups array (legacy representation).
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// Phase 1 compatibility: also delete from user_allowed_groups join table when present.
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if _, err := exec.ExecContext(ctx, "DELETE FROM user_allowed_groups WHERE group_id = $1", id); err != nil {
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return nil, err
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}
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if _, err := exec.ExecContext(
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ctx,
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"UPDATE users SET allowed_groups = array_remove(allowed_groups, $1) WHERE $1 = ANY(allowed_groups)",
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id,
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); err != nil {
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return nil, err
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}
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// 4. Delete account_groups join rows.
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if _, err := exec.ExecContext(ctx, "DELETE FROM account_groups WHERE group_id = $1", id); err != nil {
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return nil, err
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}
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// 5. Soft-delete group itself.
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if _, err := txClient.Group.Delete().Where(group.IDEQ(id)).Exec(ctx); err != nil {
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return nil, err
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}
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if tx != nil {
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if err := tx.Commit(); err != nil {
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return nil, err
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}
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}
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return affectedUserIDs, nil
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}
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func (r *groupRepository) loadAccountCounts(ctx context.Context, groupIDs []int64) (map[int64]int64, error) {
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counts := make(map[int64]int64, len(groupIDs))
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if len(groupIDs) == 0 {
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return counts, nil
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}
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rows, err := r.sql.QueryContext(
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ctx,
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"SELECT group_id, COUNT(*) FROM account_groups WHERE group_id = ANY($1) GROUP BY group_id",
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pq.Array(groupIDs),
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)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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for rows.Next() {
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var groupID int64
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var count int64
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if err := rows.Scan(&groupID, &count); err != nil {
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return nil, err
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}
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counts[groupID] = count
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}
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if err := rows.Err(); err != nil {
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return nil, err
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}
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return counts, nil
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}
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func errorsIsNoRows(err error) bool {
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return err == sql.ErrNoRows
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}
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