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/mmm-go-pp/partner01/pkg/domain"
	"gitlab.fjmaimaimai.com/mmm-go-pp/partner01/pkg/infrastructure/pg/models"
	"gitlab.fjmaimaimai.com/mmm-go-pp/partner01/pkg/infrastructure/pg/transform"
)

type CompanyRepository struct {
	transactionContext *pgTransaction.TransactionContext
}

func (repository *CompanyRepository) nextIdentify() (int64, error) {
	IdWorker, err := snowflake.NewIdWorker(1)
	if err != nil {
		return 0, err
	}
	id, err := IdWorker.NextId()
	return id, err
}
func (repository *CompanyRepository) Save(company *domain.Company) (*domain.Company, error) {
	sqlBuildFields := []string{
		"company_id",
		"company_info",
		"create_at",
		"update_at",
		"delete_at",
	}
	insertFieldsSnippet := sqlbuilder.SqlFieldsSnippet(sqlBuildFields)
	insertPlaceHoldersSnippet := sqlbuilder.SqlPlaceHoldersSnippet(sqlBuildFields)
	returningFieldsSnippet := sqlbuilder.SqlFieldsSnippet(sqlBuildFields)
	updateFields := sqlbuilder.RemoveSqlFields(sqlBuildFields, "company_id")
	updateFieldsSnippet := sqlbuilder.SqlUpdateFieldsSnippet(updateFields)
	tx := repository.transactionContext.PgTx
	if company.Identify() == nil {
		companyId, err := repository.nextIdentify()
		if err != nil {
			return company, err
		} else {
			company.CompanyId = companyId
		}
		if _, err := tx.QueryOne(
			pg.Scan(
				&company.CompanyId,
				&company.CompanyInfo,
				&company.CreateAt,
				&company.UpdateAt,
				&company.DeleteAt,
			),

			fmt.Sprintf("INSERT INTO companies (%s) VALUES (%s) RETURNING %s", insertFieldsSnippet, insertPlaceHoldersSnippet, returningFieldsSnippet),

			company.CompanyId,
			company.CompanyInfo,
			company.CreateAt,
			company.UpdateAt,
			company.DeleteAt,
		); err != nil {
			return company, err
		}
	} else {
		if _, err := tx.QueryOne(
			pg.Scan(
				&company.CompanyId,
				&company.CompanyInfo,
				&company.CreateAt,
				&company.UpdateAt,
				&company.DeleteAt,
			),

			fmt.Sprintf("UPDATE companies SET %s WHERE company_id=? RETURNING %s", updateFieldsSnippet, returningFieldsSnippet),

			company.CompanyId,
			company.CompanyInfo,
			company.CreateAt,
			company.UpdateAt,
			company.DeleteAt,
			company.Identify(),
		); err != nil {
			return company, err
		}
	}
	return company, nil
}
func (repository *CompanyRepository) Remove(company *domain.Company) (*domain.Company, error) {
	tx := repository.transactionContext.PgTx
	companyModel := new(models.Company)
	companyModel.CompanyId = company.Identify().(int64)
	if _, err := tx.Model(companyModel).WherePK().Delete(); err != nil {
		return company, err
	}
	return company, nil
}
func (repository *CompanyRepository) FindOne(queryOptions map[string]interface{}) (*domain.Company, error) {
	tx := repository.transactionContext.PgTx
	companyModel := new(models.Company)
	query := sqlbuilder.BuildQuery(tx.Model(companyModel), queryOptions)
	query.SetWhereByQueryOption("company.company_id = ?", "companyId")
	query.SetWhereByQueryOption(`company.company_info @>'{"status":?}'`, "status")
	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 companyModel.CompanyId == 0 {
		return nil, nil
	} else {
		return transform.TransformToCompanyDomainModelFromPgModels(companyModel)
	}
}
func (repository *CompanyRepository) Find(queryOptions map[string]interface{}) (int64, []*domain.Company, error) {
	tx := repository.transactionContext.PgTx
	var companyModels []*models.Company

	companies := make([]*domain.Company, 0)

	query := sqlbuilder.BuildQuery(tx.Model(&companyModels), queryOptions)
	query.SetOffsetAndLimit(20)
	query.SetOrderDirect("company_id", "DESC")
	if count, err := query.SelectAndCount(); err != nil {
		return 0, companies, err
	} else {
		for _, companyModel := range companyModels {
			if company, err := transform.TransformToCompanyDomainModelFromPgModels(companyModel); err != nil {
				return 0, companies, err
			} else {
				companies = append(companies, company)
			}
		}
		return int64(count), companies, nil
	}
}
func NewCompanyRepository(transactionContext *pgTransaction.TransactionContext) (*CompanyRepository, error) {
	if transactionContext == nil {
		return nil, fmt.Errorf("transactionContext参数不能为nil")
	} else {
		return &CompanyRepository{
			transactionContext: transactionContext,
		}, nil
	}
}