package view

import (
	"html/template"
	"log"
	"net/http"
	"strconv"

	"streifling.com/jason/cpolis/cmd/control"
	"streifling.com/jason/cpolis/cmd/model"
)

func ShowHub(s *control.CookieStore) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		session, err := s.Get(r, "cookie")
		if err != nil {
			tmpl, err := template.ParseFiles("web/templates/login.html")
			msg := "Session nicht mehr gültig. Bitte erneut anmelden."
			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", msg)
		}

		tmpl, err := template.ParseFiles("web/templates/hub.html")
		template.Must(tmpl, err).ExecuteTemplate(w, "page-content", session.Values["role"])
	}
}

func WriteArticle(db *model.DB) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		tags, err := db.GetTagList()
		if err != nil {
			log.Println(err)
			http.Error(w, err.Error(), http.StatusInternalServerError)
			return
		}

		tmpl, err := template.ParseFiles("web/templates/editor.html")
		template.Must(tmpl, err).ExecuteTemplate(w, "page-content", tags)
	}
}

func FinishArticle(db *model.DB, s *control.CookieStore) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		article := new(model.Article)
		var err error

		article.Title, err = control.ConvertToPlain(r.PostFormValue("editor-title"))
		if err != nil {
			log.Println(err)
			http.Error(w, err.Error(), http.StatusInternalServerError)
			return
		}

		article.Desc, err = control.ConvertToPlain(r.PostFormValue("editor-desc"))
		if err != nil {
			log.Println(err)
			http.Error(w, err.Error(), http.StatusInternalServerError)
			return
		}

		article.Content, err = control.ConvertToHTML(r.PostFormValue("editor-text"))
		if err != nil {
			log.Println(err)
			http.Error(w, err.Error(), http.StatusInternalServerError)
			return
		}

		session, err := s.Get(r, "cookie")
		if err != nil {
			tmpl, err := template.ParseFiles("web/templates/login.html")
			msg := "Session nicht mehr gültig. Bitte erneut anmelden."
			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", msg)
		}

		article.AuthorID = session.Values["id"].(int64)
		article.ID, err = db.AddArticle(article)
		if err != nil {
			log.Println(err)
			http.Error(w, err.Error(), http.StatusInternalServerError)
			return
		}

		r.ParseForm()
		tags := make([]int64, 0)
		for _, tag := range r.Form["tags"] {
			tagID, err := strconv.ParseInt(tag, 10, 64)
			if err != nil {
				log.Println(err)
				http.Error(w, err.Error(), http.StatusInternalServerError)
				return
			}
			tags = append(tags, tagID)
		}
		if err = db.WriteArticleTags(article.ID, tags); err != nil {
			log.Println(err)
			http.Error(w, err.Error(), http.StatusInternalServerError)
			return
		}

		tmpl, err := template.ParseFiles("web/templates/hub.html")
		tmpl = template.Must(tmpl, err)
		tmpl.ExecuteTemplate(w, "page-content", session.Values["role"])
	}
}

func ShowUnpublishedArticles(db *model.DB) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		articles, err := db.GetCertainArticles(false)
		if err != nil {
			log.Println(err)
			http.Error(w, err.Error(), http.StatusInternalServerError)
			return
		}
		tmpl, err := template.ParseFiles("web/templates/unpublished-articles.html")
		template.Must(tmpl, err).ExecuteTemplate(w, "page-content", articles)
	}
}

func ReviewArticle(db *model.DB, s *control.CookieStore) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		id, err := strconv.ParseInt(r.PostFormValue("id"), 10, 64)
		if err != nil {
			log.Println(err)
			http.Error(w, err.Error(), http.StatusInternalServerError)
			return
		}

		article, err := db.GetArticle(id)
		if err != nil {
			tmpl, err := template.ParseFiles("web/templates/to-be-published.html")
			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", article)
			return
		}

		// session, err := s.Get(r, "cookie")
		// if err != nil {
		// 	tmpl, err := template.ParseFiles("web/templates/login.html")
		// 	msg := "Session nicht mehr gültig. Bitte erneut anmelden."
		// 	template.Must(tmpl, err).ExecuteTemplate(w, "page-content", msg)
		// }

		tmpl, err := template.ParseFiles("web/templates/to-be-published.html")
		tmpl = template.Must(tmpl, err)
		tmpl.ExecuteTemplate(w, "page-content", article)
	}
}

func PublishArticle(db *model.DB, s *control.CookieStore) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		id, err := strconv.ParseInt(r.PostFormValue("id"), 10, 64)
		if err != nil {
			log.Println(err)
			http.Error(w, err.Error(), http.StatusInternalServerError)
			return
		}

		session, err := s.Get(r, "cookie")
		if err != nil {
			tmpl, err := template.ParseFiles("web/templates/login.html")
			msg := "Session nicht mehr gültig. Bitte erneut anmelden."
			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", msg)
		}

		db.UpdateAttribute("articles", id, "published", true)

		tmpl, err := template.ParseFiles("web/templates/hub.html")
		tmpl = template.Must(tmpl, err)
		tmpl.ExecuteTemplate(w, "page-content", session.Values["role"])
	}
}