package mysql

import (
	"errors"

	"gorm.io/gorm"
	"myschools.me/heritage/heritage-api/model"
)

func OrgCreate(org *model.Org) error {
	db, err := newDB()
	if err != nil {
		return err
	}
	return db.Create(org).Error
}

func OrgUpdate(org *model.Org) error {
	db, err := newDB()
	if err != nil {
		return err
	}
	return db.Model(&model.Org{}).Where("id = ? AND deleted = false", org.ID).Updates(org).Error
}

func OrgDelete(id *string) (bool, error) {
	db, err := newDB()
	if err != nil {
		return false, err
	}
	tx := db.Model(&model.Org{}).Where("id = ? AND deleted = false", *id).Update("deleted", true)
	if tx.Error != nil {
		return false, tx.Error
	}
	return tx.RowsAffected > 0, nil
}

func OrgByID(id *string) (*model.Org, bool, error) {
	db, err := newDB()
	if err != nil {
		return nil, false, err
	}
	var o model.Org
	if err := db.Where("id = ? AND deleted = false", *id).First(&o).Error; err != nil {
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return nil, false, nil
		}
		return nil, false, err
	}
	return &o, true, nil
}

func OrgList(parentID *string, offset, limit *int) ([]model.Org, int64, error) {
	db, err := newDB()
	if err != nil {
		return nil, 0, err
	}

	q := db.Model(&model.Org{}).Where("deleted = false")
	if parentID != nil {
		q = q.Where("parent_id = ?", *parentID)
	}

	var total int64
	if err := q.Count(&total).Error; err != nil {
		return nil, 0, err
	}

	var items []model.Org
	if err := q.Order("sort asc, created_at desc").Offset(*offset).Limit(*limit).Find(&items).Error; err != nil {
		return nil, 0, err
	}
	return items, total, nil
}

func OrgCount() (*int64, error) {
	db, err := newDB()
	if err != nil {
		return nil, err
	}

	var count int64
	if err := db.Model(&model.Org{}).Count(&count).Error; err != nil {
		return nil, err
	}

	return &count, nil
}