package repository

import (
	"fmt"
	"github.com/go-pg/pg/v10"

	"github.com/linmadan/egglib-go/persistent/pg/sqlbuilder"
	pgTransaction "github.com/linmadan/egglib-go/transaction/pg"
	"github.com/linmadan/egglib-go/utils/snowflake"
	"gitlab.fjmaimaimai.com/allied-creation/allied-creation-user/pkg/domain"
	"gitlab.fjmaimaimai.com/allied-creation/allied-creation-user/pkg/infrastructure/pg/models"
	"gitlab.fjmaimaimai.com/allied-creation/allied-creation-user/pkg/infrastructure/pg/transform"
)

type UpChainRepository struct {
	transactionContext *pgTransaction.TransactionContext
}

func (repository *UpChainRepository) nextIdentify() (int64, error) {
	IdWorker, err := snowflake.NewIdWorker(1)
	if err != nil {
		return 0, err
	}
	id, err := IdWorker.NextId()
	return id, err
}
func (repository *UpChainRepository) Save(upChain *domain.UpChain) (*domain.UpChain, error) {
	sqlBuildFields := []string{
		"up_chain_id",
		"source",
		"primary_id",
		"issue_id",
		"data",
		"hash",
		"up_chain_status",
		"created_at",
	}
	insertFieldsSnippet := sqlbuilder.SqlFieldsSnippet(sqlbuilder.RemoveSqlFields(sqlBuildFields, "up_chain_id"))
	insertPlaceHoldersSnippet := sqlbuilder.SqlPlaceHoldersSnippet(sqlbuilder.RemoveSqlFields(sqlBuildFields, "up_chain_id"))
	returningFieldsSnippet := sqlbuilder.SqlFieldsSnippet(sqlBuildFields)
	updateFields := sqlbuilder.RemoveSqlFields(sqlBuildFields, "up_chain_id")
	updateFieldsSnippet := sqlbuilder.SqlUpdateFieldsSnippet(updateFields)
	tx := repository.transactionContext.PgTx
	if upChain.Identify() == nil {
		upChainId, err := repository.nextIdentify()
		if err != nil {
			return upChain, err
		} else {
			upChain.UpChainId = upChainId
		}
		if _, err := tx.QueryOne(
			pg.Scan(
				&upChain.UpChainId,
				&upChain.Source,
				&upChain.PrimaryId,
				&upChain.IssueId,
				&upChain.Data,
				&upChain.Hash,
				&upChain.UpChainStatus,
				&upChain.CreatedAt,
			),
			fmt.Sprintf("INSERT INTO business.up_chain (%s) VALUES (%s) RETURNING %s", insertFieldsSnippet, insertPlaceHoldersSnippet, returningFieldsSnippet),
			//upChain.UpChainId,
			upChain.Source,
			upChain.PrimaryId,
			upChain.IssueId,
			upChain.Data,
			upChain.Hash,
			upChain.UpChainStatus,
			upChain.CreatedAt,
		); err != nil {
			return upChain, err
		}
	} else {
		if _, err := tx.QueryOne(
			pg.Scan(
				&upChain.UpChainId,
				&upChain.Source,
				&upChain.PrimaryId,
				&upChain.IssueId,
				&upChain.Data,
				&upChain.Hash,
				&upChain.UpChainStatus,
				&upChain.CreatedAt,
			),
			fmt.Sprintf("UPDATE business.up_chain SET %s WHERE up_chain_id=? RETURNING %s", updateFieldsSnippet, returningFieldsSnippet),
			upChain.Source,
			upChain.PrimaryId,
			upChain.IssueId,
			upChain.Data,
			upChain.Hash,
			upChain.UpChainStatus,
			upChain.CreatedAt,
			upChain.Identify(),
		); err != nil {
			return upChain, err
		}
	}
	return upChain, nil
}
func (repository *UpChainRepository) Remove(upChain *domain.UpChain) (*domain.UpChain, error) {
	tx := repository.transactionContext.PgTx
	upChainModel := new(models.UpChain)
	upChainModel.UpChainId = upChain.Identify().(int64)
	if _, err := tx.Model(upChainModel).WherePK().Delete(); err != nil {
		return upChain, err
	}
	return upChain, nil
}
func (repository *UpChainRepository) FindOne(queryOptions map[string]interface{}) (*domain.UpChain, error) {
	tx := repository.transactionContext.PgTx
	upChainModel := new(models.UpChain)
	query := sqlbuilder.BuildQuery(tx.Model(upChainModel), queryOptions)
	query.SetWhereByQueryOption("up_chain.up_chain_id = ?", "upChainId")
	query.SetWhereByQueryOption("up_chain.source = ?", "source")
	query.SetWhereByQueryOption("up_chain.primary_id = ?", "primaryId")
	if err := query.First(); err != nil {
		if err.Error() == "pg: no rows in result set" {
			return nil, fmt.Errorf("没有此资源")
		} else {
			return nil, err
		}
	}
	if upChainModel.UpChainId == 0 {
		return nil, nil
	} else {
		return transform.TransformToUpChainDomainModelFromPgModels(upChainModel)
	}
}
func (repository *UpChainRepository) Find(queryOptions map[string]interface{}) (int64, []*domain.UpChain, error) {
	tx := repository.transactionContext.PgTx
	var upChainModels []*models.UpChain
	upChains := make([]*domain.UpChain, 0)
	query := sqlbuilder.BuildQuery(tx.Model(&upChainModels), queryOptions)
	query.SetOffsetAndLimit(20)
	query.SetOrderDirect("up_chain_id", "DESC")
	if count, err := query.SelectAndCount(); err != nil {
		return 0, upChains, err
	} else {
		for _, upChainModel := range upChainModels {
			if upChain, err := transform.TransformToUpChainDomainModelFromPgModels(upChainModel); err != nil {
				return 0, upChains, err
			} else {
				upChains = append(upChains, upChain)
			}
		}
		return int64(count), upChains, nil
	}
}
func NewUpChainRepository(transactionContext *pgTransaction.TransactionContext) (*UpChainRepository, error) {
	if transactionContext == nil {
		return nil, fmt.Errorf("transactionContext参数不能为nil")
	} else {
		return &UpChainRepository{
			transactionContext: transactionContext,
		}, nil
	}
}