package routes

import (
	"net/http"

	"git.red-panda.pet/pandaware/house/backend/db"
	"git.red-panda.pet/pandaware/house/backend/middleware"
	"git.red-panda.pet/pandaware/house/backend/router"
)

func init() {
	routes["GET"]["/task"] = new(TasksGET)
}

type tasksResponse struct {
	Tasks      []db.Task     `json:"tasks"`
	Categories []db.Category `json:"categories"`
}

type TasksGET struct{}

// Authorize implements router.AuthorizedRoute.
func (t *TasksGET) Authorize(ctx *router.Context) error {
	return middleware.Authenticated(ctx)
}

// Handle implements router.Route.
func (t *TasksGET) Handle(ctx *router.Context) error {
	tx, err := ctx.DB.BeginTx(ctx, nil)
	if err != nil {
		return ctx.GenericError(err, http.StatusInternalServerError)
	}

	query := ctx.Query.WithTx(tx)

	tasks, err := query.AllTasks(ctx)
	if err != nil {
		return ctx.GenericError(err, http.StatusInternalServerError)
	}

	taskIDs := make([]int64, len(tasks))
	for i, t := range tasks {
		taskIDs[i] = t.ID
	}

	categories, err := query.CategoriesOf(ctx, taskIDs)
	if err != nil {
		return ctx.GenericError(err, http.StatusInternalServerError)
	}

	return ctx.JSON(200, tasksResponse{
		Tasks:      tasks,
		Categories: categories,
	})
}

var _ router.AuthorizedRoute = new(TasksGET)