package handlers

import (
	"context"
	"fmt"
	"net/http"

	"code.tjo.space/mentos1386/zdravko/internal/jwt"
	"code.tjo.space/mentos1386/zdravko/internal/models"
	"code.tjo.space/mentos1386/zdravko/internal/services"
	"code.tjo.space/mentos1386/zdravko/web/templates/components"
	"github.com/go-playground/validator/v10"
	"github.com/gosimple/slug"
	"github.com/labstack/echo/v4"
)

type WorkerWithToken struct {
	*models.WorkerGroup
	Token string
}

type SettingsWorkerGroups struct {
	*Settings
	WorkerGroups       []*models.WorkerGroup
	WorkerGroupsLength int
}

type SettingsWorker struct {
	*Settings
	Worker *WorkerWithToken
}

func (h *BaseHandler) SettingsWorkerGroupsGET(c echo.Context) error {
	cc := c.(AuthenticatedContext)

	workerGroups, err := services.GetWorkerGroups(context.Background(), h.query)
	if err != nil {
		return err
	}

	return c.Render(http.StatusOK, "settings_worker_groups.tmpl", &SettingsWorkerGroups{
		Settings: NewSettings(
			cc.Principal.User,
			GetPageByTitle(SettingsPages, "Worker Groups"),
			[]*components.Page{GetPageByTitle(SettingsPages, "Worker Groups")},
		),
		WorkerGroups:       workerGroups,
		WorkerGroupsLength: len(workerGroups),
	})
}

func (h *BaseHandler) SettingsWorkerGroupsDescribeGET(c echo.Context) error {
	cc := c.(AuthenticatedContext)

	slug := c.Param("slug")

	worker, err := services.GetWorkerGroup(context.Background(), h.query, slug)
	if err != nil {
		return err
	}

	// Allow write access to default namespace
	token, err := jwt.NewTokenForWorker(h.config.Jwt.PrivateKey, h.config.Jwt.PublicKey, worker)
	if err != nil {
		return err
	}

	return c.Render(http.StatusOK, "settings_worker_groups_describe.tmpl", &SettingsWorker{
		Settings: NewSettings(
			cc.Principal.User,
			GetPageByTitle(SettingsPages, "Worker Groups"),
			[]*components.Page{
				GetPageByTitle(SettingsPages, "Worker Groups"),
				{
					Path:       fmt.Sprintf("/settings/worker-groups/%s", slug),
					Title:      "Describe",
					Breadcrumb: worker.Name,
				},
			}),
		Worker: &WorkerWithToken{
			WorkerGroup: worker,
			Token:       token,
		},
	})
}

func (h *BaseHandler) SettingsWorkerGroupsCreateGET(c echo.Context) error {
	cc := c.(AuthenticatedContext)

	return c.Render(http.StatusOK, "settings_worker_groups_create.tmpl", NewSettings(
		cc.Principal.User,
		GetPageByTitle(SettingsPages, "Worker Groups"),
		[]*components.Page{
			GetPageByTitle(SettingsPages, "Worker Groups"),
			GetPageByTitle(SettingsPages, "Worker Groups Create"),
		},
	))
}

func (h *BaseHandler) SettingsWorkerGroupsCreatePOST(c echo.Context) error {
	ctx := context.Background()
	slug := slug.Make(c.FormValue("name"))

	worker := models.WorkerGroup{
		Name: c.FormValue("name"),
		Slug: slug,
	}

	err := validator.New(validator.WithRequiredStructEnabled()).Struct(worker)
	if err != nil {
		return err
	}

	_, err = services.GetOrCreateWorkerGroup(
		ctx,
		h.query,
		worker,
	)
	if err != nil {
		return err
	}

	return c.Redirect(http.StatusSeeOther, fmt.Sprintf("/settings/worker-groups/%s", slug))
}