package article

import (
	"nCovTrack-Backend/global"
	"nCovTrack-Backend/models"
	"strconv"
)

//ListPublishedArticles list the articles published, use to show the articles to all people
func ListPublishedArticles() *[]models.ListArticle {
	return listArticles(1, 0)
}

//ListPublishedArticlesByUser list the user's published articles
func ListPublishedArticlesByUser(id int) *[]models.ListArticle {
	return listArticles(1, id)
}

//ListNotPublishedArticlesByUser list the user's not publish articles
func ListNotPublishedArticlesByUser(id int) *[]models.ListArticle {
	return listArticles(0, id)
}

//listArticles complex function need to directly use gorm
func listArticles(isPublish int, createUser int) *[]models.ListArticle {
	queryStr := "back_article.is_delete = 0 AND is_publish = " + strconv.Itoa(isPublish)
	if createUser != 0 {
		queryStr += " AND create_user = " + strconv.Itoa(createUser)
	}
	var res []models.ListArticle
	global.Db.Table("back_article").
		Select("back_user.username, back_article.*").
		Joins("join back_user on back_article.create_user=back_user.id").
		Where(queryStr).Find(&res)
	if res == nil {
		res = []models.ListArticle{}
	}
	return &res
}

//SaveArticle save the articles
func SaveArticle(claims models.TokenClaims, article map[string]interface{}) (ok bool) {
	models.BeforeSave(article, claims.ID)
	ok, rows := models.Upsert[models.BackArticle](article)
	return ok && rows != 0
}

//DeleteArticle delete article by id
func DeleteArticle(id int) (ok bool) {
	ok, rowsAffected := models.DeleteById[models.BackArticle](id)
	return ok && rowsAffected != 0
}

//GetArticleById get an article
func GetArticleById(id int) map[string]interface{} {
	return models.Get[models.BackArticle]([]map[string]interface{}{{"id": id}})
}

//PublishArticle publish an article
func PublishArticle(id int) (ok bool) {
	colMap := map[string]interface{}{"id": id, "is_publish": 1}
	ok, rowsAffected := models.Upsert[models.BackArticle](colMap)
	return ok && rowsAffected != 0
}