package projects

import (
	"cpone-dashboard/menu/auth"
	"embed"
	"html/template"
	"log"
	"net/http"
	"strconv"
)

var tmplFS *embed.FS
var basePath string

func SetTemplateFS(fs *embed.FS) { tmplFS = fs }
func SetBasePath(p string)       { basePath = p }

type pageData struct {
	Username       string
	Projects       []ProjectItem
	CurrentProject *ProjectItem
}

func Index(w http.ResponseWriter, r *http.Request) {
	username := auth.Username(r)
	selectedID := auth.SelectedProjectID(r)

	items, err := GetUserProjects(username)
	if err != nil {
		log.Printf("[projects] GetUserProjects error: %v", err)
		http.Error(w, "query error", http.StatusInternalServerError)
		return
	}

	b := func(path string) string { return basePath + path }
	t := template.Must(template.New("").Funcs(template.FuncMap{"b": b}).ParseFS(tmplFS, "templates/projects/index.html"))
	var current *ProjectItem
	if selectedID > 0 {
		if item, ok, _ := GetUserProject(username, selectedID); ok {
			current = &item
		}
	}
	if err := t.ExecuteTemplate(w, "projects", pageData{
		Username:       username,
		Projects:       items,
		CurrentProject: current,
	}); err != nil {
		log.Printf("[projects] template error: %v", err)
	}
}

func Select(w http.ResponseWriter, r *http.Request) {
	username := auth.Username(r)
	mcuID, _ := strconv.Atoi(r.URL.Query().Get("mcu_id"))
	if mcuID <= 0 {
		http.Redirect(w, r, basePath+"/projects", http.StatusSeeOther)
		return
	}

	if _, ok, err := GetUserProject(username, mcuID); err != nil {
		log.Printf("[projects] GetUserProject error: %v", err)
		http.Error(w, "query error", http.StatusInternalServerError)
		return
	} else if !ok {
		http.Redirect(w, r, basePath+"/projects", http.StatusSeeOther)
		return
	}

	auth.SetSelectedProject(w, mcuID)
	http.Redirect(w, r, basePath+"/dashboard", http.StatusSeeOther)
}