package dao

import (
	"errors"
	"fmt"
	"yintai-api/app/common/model"

	"gorm.io/gorm"
)

type Resource struct {
	db *gorm.DB
}

func NewResource(db ...*gorm.DB) *Resource {
	return &Resource{db: getDB(db...)}
}

func (r *Resource) TableName() string {
	return "yt_resource"
}

func (r *Resource) Create(m *model.Resource) error {
	return r.db.Table(r.TableName()).Create(m).Error
}

func (r *Resource) Update(m *model.Resource) error {
	return r.db.Table(r.TableName()).Save(m).Error
}

func (r *Resource) Delete(id int64) error {
	return r.db.Table(r.TableName()).Where("id = ?", id).Delete(&Resource{}).Error
}

func (r *Resource) Get(id int64) (*model.Resource, error) {
	var res model.Resource
	if err := r.db.Table(r.TableName()).Where("id = ?", id).First(&res).Error; err != nil {
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return nil, nil
		}
		return nil, err
	}
	return &res, nil
}

func (r *Resource) Exists(id int64) (bool, error) {
	var count int64
	if err := r.db.Table(r.TableName()).Where("id = ?", id).Count(&count).Error; err != nil {
		return false, err
	}
	return count > 0, nil
}

func (r *Resource) List(name, types, code, method, path string, page, size int, sort string) ([]*model.Resource, int64, error) {
	var res []*model.Resource
	var count int64
	tx := r.db.Table(r.TableName())
	if name != "" {
		tx = tx.Where("name LIKE ?", fmt.Sprintf("%%%s%%", name))
	}

	if types != "" {
		tx = tx.Where("type = ?", types)
	}

	if path != "" {
		tx = tx.Where("path LIKE ?", fmt.Sprintf("%%%s%%", path))
	}

	if method != "" {
		tx = tx.Where("method = ?", method)
	}

	if err := tx.Count(&count).Error; err != nil {
		return nil, 0, err
	}

	if sort != "" {
		tx = tx.Order(sort)
	} else {
		tx = tx.Order("id desc")
	}

	if err := tx.Offset((page - 1) * size).Limit(size).Find(&res).Error; err != nil {
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return nil, 0, nil
		}
		return nil, 0, err
	}
	return res, count, nil
}

func (r *Resource) GetByIds(ids []int64) ([]*model.Resource, error) {
	var res []*model.Resource
	if err := r.db.Table(r.TableName()).Where("id in (?)", ids).Find(&res).Error; err != nil {
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return nil, nil
		}
		return nil, err
	}
	return res, nil
}

func (r *Resource) RoleGet(roleId int64) ([]*model.Resource, error) {
	var res []*model.Resource
	tx := r.db.Table(NewRoleResource().TableName()+" as rr").Where("rr.role_id = ?", roleId)
	tx = tx.Joins(fmt.Sprintf(" JOIN %s r ON r.id = rr.resource_id", r.TableName()))
	if err := tx.Select("r.*").Order("id desc").Find(&res).Error; err != nil {
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return nil, nil
		}
		return nil, err
	}
	return res, nil
}

func (r *Resource) GetMaps(maps string) ([]*model.Resource, error) {
	var res []*model.Resource
	if err := r.db.Table(r.TableName()).Where("maps LIKE ?", fmt.Sprintf("%s/%%", maps)).Find(&res).Error; err != nil {
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return nil, nil
		}
		return nil, err
	}
	return res, nil
}