package routes

import (
	"html/template"
	"net/http"
	"strings"
	"time"

	"git.1e99.eu/1e99/wolbodge/devices"
	"git.1e99.eu/1e99/wolbodge/sessions"
)

func GetIndex(device devices.Device, storage sessions.Storage, tmpl *template.Template) http.HandlerFunc {
	return func(res http.ResponseWriter, req *http.Request) {
		status, err := device.Status()
		if err != nil {
			return
		}

		sessions, err := storage.GetSessions()
		if err != nil {
			return
		}

		tmpl.Execute(res, map[string]any{
			"DeviceStatus": status,
			"Sessions":     sessions,
		})
	}
}

func StartSession(storage sessions.Storage) http.HandlerFunc {
	return func(res http.ResponseWriter, req *http.Request) {
		err := req.ParseMultipartForm(10 * 1024)
		if err != nil {
			http.Error(res, "", http.StatusBadRequest)
			return
		}

		description := req.FormValue("description")
		if strings.TrimSpace(description) == "" {
			description = "unknown"
		}

		_, err = storage.StartSession(description, time.Now())
		if err != nil {
			http.Error(res, "", http.StatusInternalServerError)
			return
		}

		http.Redirect(res, req, "/", http.StatusFound)
	}
}

func EndSession(storage sessions.Storage) http.HandlerFunc {
	return func(res http.ResponseWriter, req *http.Request) {
		err := req.ParseMultipartForm(10 * 1024)
		if err != nil {
			http.Error(res, "", http.StatusBadRequest)
			return
		}

		sessionId := req.FormValue("session_id")
		err = storage.EndSession(sessionId)
		switch {
		case err == sessions.ErrUnknownSession:
			http.Error(res, "", http.StatusNotFound)
			return
		case err != nil:
			http.Error(res, "", http.StatusInternalServerError)
			return
		}

		http.Redirect(res, req, "/", http.StatusFound)
	}
}