package repository

import (
	"fmt"

	"github.com/go-pg/pg/v10"
	pgTransaction "github.com/linmadan/egglib-go/transaction/pg"
	"github.com/tiptok/godevp/pkg/domain"
	"github.com/tiptok/godevp/pkg/infrastructure/pg/models"
)

type RoleAccessRepository struct {
	transactionContext *pgTransaction.TransactionContext
}

func (repository *RoleAccessRepository) nextIdentify() (int64, error) {
	return 0, nil
}
func (repository *RoleAccessRepository) Save(roleAccess *domain.RoleAccess) (*domain.RoleAccess, error) {
	tx := repository.transactionContext.PgTx
	if roleAccess.Identify() == nil {
		_, err := repository.nextIdentify()
		if err != nil {
			return roleAccess, err
		}
		if _, err := tx.QueryOne(
			pg.Scan(&roleAccess.Id, &roleAccess.RoleId, &roleAccess.AccessId, &roleAccess.Object, &roleAccess.Action, &roleAccess.Option),
			"INSERT INTO role_access (id, role_id, access_id, object, action, option) VALUES (?, ?, ?, ?, ?, ?) RETURNING id, role_id, access_id, object, action, option",
			roleAccess.Id, roleAccess.RoleId, roleAccess.AccessId, roleAccess.Object, roleAccess.Action, roleAccess.Option); err != nil {
			return roleAccess, err
		}
	} else {
		if _, err := tx.QueryOne(
			pg.Scan(&roleAccess.Id, &roleAccess.RoleId, &roleAccess.AccessId, &roleAccess.Object, &roleAccess.Action, &roleAccess.Option),
			"UPDATE role_access SET id=?, role_id=?, access_id=?, object=?, action=?, option=? WHERE id=? RETURNING id, role_id, access_id, object, action, option",
			roleAccess.Id, roleAccess.RoleId, roleAccess.AccessId, roleAccess.Object, roleAccess.Action, roleAccess.Option, roleAccess.Identify()); err != nil {
			return roleAccess, err
		}
	}
	return roleAccess, nil
}
func (repository *RoleAccessRepository) Remove(roleAccess *domain.RoleAccess) (*domain.RoleAccess, error) {
	tx := repository.transactionContext.PgTx
	roleAccessModel := new(models.RoleAccess)
	roleAccessModel.Id = roleAccess.Identify().(int64)
	if _, err := tx.Model(roleAccessModel).WherePK().Delete(); err != nil {
		return roleAccess, err
	}
	return roleAccess, nil
}
func (repository *RoleAccessRepository) FindOne(queryOptions map[string]interface{}) (*domain.RoleAccess, error) {
	tx := repository.transactionContext.PgTx
	roleAccessModel := new(models.RoleAccess)
	query := tx.Model(roleAccessModel)
	if roleAccessId, ok := queryOptions["id"]; ok {
		query = query.Where("role_access.id = ?", roleAccessId)
	}
	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 roleAccessModel.Id == 0 {
		return nil, nil
	} else {
		return repository.transformPgModelToDomainModel(roleAccessModel)
	}
}
func (repository *RoleAccessRepository) Find(queryOptions map[string]interface{}) (int64, []*domain.RoleAccess, error) {
	tx := repository.transactionContext.PgTx
	var roleAccessModels []*models.RoleAccess
	roleAccesss := make([]*domain.RoleAccess, 0)
	query := tx.Model(&roleAccessModels)

	if roleId, ok := queryOptions["roleId"]; ok {
		query = query.Where("role_id = ?", roleId)
	}

	if offset, ok := queryOptions["offset"]; ok {
		offset := offset.(int)
		if offset > -1 {
			query = query.Offset(offset)
		}
	} else {
		query = query.Offset(0)
	}
	if limit, ok := queryOptions["limit"]; ok {
		limit := limit.(int)
		if limit > -1 {
			query = query.Limit(limit)
		}
	} else {
		query = query.Limit(20)
	}
	if count, err := query.Order("id DESC").SelectAndCount(); err != nil {
		return 0, roleAccesss, err
	} else {
		for _, roleAccessModel := range roleAccessModels {
			if roleAccess, err := repository.transformPgModelToDomainModel(roleAccessModel); err != nil {
				return 0, roleAccesss, err
			} else {
				roleAccesss = append(roleAccesss, roleAccess)
			}
		}
		return int64(count), roleAccesss, nil
	}
}
func (repository *RoleAccessRepository) transformPgModelToDomainModel(roleAccessModel *models.RoleAccess) (*domain.RoleAccess, error) {
	return &domain.RoleAccess{
		Id:       roleAccessModel.Id,
		RoleId:   roleAccessModel.RoleId,
		AccessId: roleAccessModel.AccessId,
		Object:   roleAccessModel.Object,
		Action:   roleAccessModel.Action,
		Option:   roleAccessModel.Option,
	}, nil
}
func NewRoleAccessRepository(transactionContext *pgTransaction.TransactionContext) (*RoleAccessRepository, error) {
	if transactionContext == nil {
		return nil, fmt.Errorf("transactionContext参数不能为nil")
	} else {
		return &RoleAccessRepository{
			transactionContext: transactionContext,
		}, nil
	}
}