package mysql

import (
	"errors"
	"time"

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

func DataRecordCreate(r *model.DataRecord) error {
	db, err := newDB()
	if err != nil {
		return err
	}
	return db.Create(r).Error
}

func DataRecordUpdate(r *model.DataRecord) (bool, error) {
	db, err := newDB()
	if err != nil {
		return false, err
	}
	tx := db.Model(&model.DataRecord{}).Where("id = ? AND deleted = false", r.ID).Updates(r)
	if tx.Error != nil {
		return false, tx.Error
	}
	return tx.RowsAffected > 0, nil
}

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

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

func DataRecordList(pointID, taskID *string, startAt, endAt *time.Time, offset, limit *int) ([]model.DataRecord, int64, error) {
	db, err := newDB()
	if err != nil {
		return nil, 0, err
	}

	q := db.Model(&model.DataRecord{}).Where("deleted = false")
	if pointID != nil && *pointID != "" {
		q = q.Where("point_id = ?", *pointID)
	}
	if taskID != nil && *taskID != "" {
		q = q.Where("task_id = ?", *taskID)
	}
	if startAt != nil {
		q = q.Where("collected_at >= ?", *startAt)
	}
	if endAt != nil {
		q = q.Where("collected_at <= ?", *endAt)
	}

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

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