package ticdc

import (
	"context"

	"github.com/tidbcloud/dataflow-service/app/repo"
	"github.com/tidbcloud/dataflow-service/app/repo/entity"
	"github.com/tidbcloud/pkgv2/bizerr"
	"github.com/tidbcloud/pkgv2/db"
)

type kernelChangefeedTrafficRecordRepoImpl struct {
	dbProvider db.Provider
}

func NewKernelChangefeedTrafficRecordRepo(dbProvider db.Provider) repo.KernelChangefeedTrafficRecordRepo {
	return &kernelChangefeedTrafficRecordRepoImpl{dbProvider: dbProvider}
}

func (b *kernelChangefeedTrafficRecordRepoImpl) Get(
	ctx context.Context, ops ...repo.KernelChangefeedTrafficRecordFilterOp,
) (*entity.KernelChangefeedTrafficRecord, bizerr.BizError) {
	rdb := b.dbProvider.ReadDB(ctx)

	qs := entity.NewKernelChangefeedTrafficRecordQuerySet(rdb)
	for _, op := range ops {
		qs = op(qs)
	}
	record := &entity.KernelChangefeedTrafficRecord{}
	if err := qs.One(record); err != nil {
		return nil, bizerr.WrapGormError(err, "get kernel changefeed traffic record occur error")
	}
	return record, nil
}

func (b *kernelChangefeedTrafficRecordRepoImpl) Load(
	ctx context.Context, id uint64,
) (*entity.KernelChangefeedTrafficRecord, bizerr.BizError) {
	rdb := b.dbProvider.ReadDB(ctx)
	record := &entity.KernelChangefeedTrafficRecord{}
	err := entity.NewKernelChangefeedTrafficRecordQuerySet(rdb).
		IDEq(entity.ID(id)).
		One(record)
	if err != nil {
		return nil, bizerr.WrapGormError(err, "load kernel changefeed traffic record occur error")
	}
	return record, nil
}

func (b *kernelChangefeedTrafficRecordRepoImpl) Save(ctx context.Context, record *entity.KernelChangefeedTrafficRecord,
) bizerr.BizError {
	wdb := b.dbProvider.WriteDB(ctx)
	if err := entity.SaveWithVersioning(wdb, record); err != nil {
		return err.Chain("save record, id=%d", record.ID)
	}
	return nil
}

func (b *kernelChangefeedTrafficRecordRepoImpl) List(
	ctx context.Context, ops ...repo.KernelChangefeedTrafficRecordFilterOp,
) ([]entity.KernelChangefeedTrafficRecord, bizerr.BizError) {
	rdb := b.dbProvider.ReadDB(ctx)

	qs := entity.NewKernelChangefeedTrafficRecordQuerySet(rdb)
	for _, op := range ops {
		qs = op(qs)
	}
	var records []entity.KernelChangefeedTrafficRecord
	if err := qs.All(&records); err != nil {
		return nil, bizerr.WrapGormError(err, "list kernel changefeed traffic  records occur error")
	}
	return records, nil
}