package modweb

import (
	"net/http"

	"github.com/gofiber/fiber/v2"
	"github.com/gofiber/fiber/v2/middleware/session"
)

type ModuleManager struct {
	module Module
	app    *App
}

func (mm *ModuleManager) RegisterViews(system http.FileSystem) {
	mm.app.viewsFs.Register(mm.module.Name(), system)
}

func (mm *ModuleManager) Fiber(handlers ...fiber.Handler) fiber.Router {
	handlers = append([]fiber.Handler{
		func(ctx *fiber.Ctx) error {
			min := mm.module.MinAccessLevel()
			if min > 0 {
				user := mm.User(ctx)
				if user == nil || user.AccessLevel < min {
					return ctx.Redirect("/")
				}
			}

			return ctx.Next()
		},
	}, handlers...)
	return mm.app.fiber.Group("/"+mm.module.Name()+"/", handlers...)
}

func (mm *ModuleManager) Render(ctx *fiber.Ctx, template string, data fiber.Map) error {
	return ctx.Render(mm.module.Name()+"/"+template, mm.app.data(ctx, data), "layouts/main")
}

func (mm *ModuleManager) Session(ctx *fiber.Ctx) *session.Session {
	sess, _ := mm.app.sessions.Get(ctx)
	return sess
}

func (mm *ModuleManager) User(ctx *fiber.Ctx) *User {
	sess := mm.Session(ctx)
	if _, ok := sess.Get("user:id").(string); ok {
		user := &User{}
		user.Load(sess)
		return user
	}
	return nil
}

func (mm *ModuleManager) SetHomepage(template string, handlers ...func(map[string]interface{})) {
	mm.app.homepage = mm.module.Name() + "/" + template
	mm.app.homepageHandlers = handlers
}

func (mm *ModuleManager) SetSessionConfig(config session.Config) {
	mm.app.sessions = session.New(config)
}