package handlers

import (
	"embed"
	"html/template"
	"log"
	"net/http"
	"os"
	"processSupervisor/models"
)

type MainPage struct {
	templates  *embed.FS
	Supervisor *models.Supervisor
}

func NewMainPage(templates *embed.FS) (*MainPage, error) {
	var supervisor models.Supervisor
	if _, err := os.Stat("cfg/"); err != nil {
		s, err := models.ReadTemplate("dist/supervisorTemplate.json")
		if err != nil {
			return nil, err
		}
		supervisor = s
	}

	if err := supervisor.StartProcesses(); err != nil {
		return nil, err
	}
	return &MainPage{
		templates:  templates,
		Supervisor: &supervisor,
	}, nil
}

func (m *MainPage) UpdateMainPage(w http.ResponseWriter, r *http.Request) {
	// tmpl := template.Must(
	// 	template.New("index.html").ParseFS(
	// 		m.templates,
	// 		"templates/index.html",
	// 	),
	// )

	tmpl := template.Must(
		template.New("index.html").ParseFiles(
			"templates/index.html",
		),
	)
	tmpl.Execute(w, m)
}

func (m *MainPage) StartProcess(w http.ResponseWriter, r *http.Request) {
	name := r.PostFormValue("name")

	// This is where you trigger the .Start method
	err := m.Supervisor.StartProcessByName(name)
	if err != nil {
		log.Println("Failed to start process", err)

		//http.Error(w, "Failed to start process", http.StatusInternalServerError)
		//return
	}
	m.UpdateMainPage(w, r)
	//w.WriteHeader(http.StatusOK)
}

func (m *MainPage) StopProcess(w http.ResponseWriter, r *http.Request) {
	name := r.PostFormValue("name")

	err := m.Supervisor.StopProcessByName(name)
	if err != nil {
		log.Println("Failed to stop process", err)
		//http.Error(w, "Failed to stop process", http.StatusInternalServerError)
		//return
	}
	m.UpdateMainPage(w, r)
	//w.WriteHeader(http.StatusOK)
}

func (m *MainPage) RestartProcess(w http.ResponseWriter, r *http.Request) {
	name := r.PostFormValue("name")

	err := m.Supervisor.StopProcessByName(name)
	if err != nil {
		log.Println("Failed to start process", err)

		//http.Error(w, "Failed to start process", http.StatusInternalServerError)
		//return
	}

	err = m.Supervisor.StartProcessByName(name)
	if err != nil {
		log.Println("Failed to stop process", err)

		//	http.Error(w, "Failed to stop process", http.StatusInternalServerError)
		//	return
	}
	m.UpdateMainPage(w, r)
	//w.WriteHeader(http.StatusOK)
}