<template>
  <main class="flex flex-col items-stretch | w-full" style="--row-gap: 2rem">
    <header class="flex | bg-white | rounded-2xl | p-8">
      <router-link
        :to="'/' + page.parent"
        class="btn btn--white"
        data-icon="arrow-left"
      >
        <span>Retour au projet</span>
      </router-link>
      <button class="btn | ml-auto">Valider et envoyer le brief</button>
    </header>
    <component :is="stepsComponents[currentStep]" @update:step="changeStep" />
  </main>
</template>
<script setup>
import { ref } from "vue";
import Intro from "../components/project/brief/Intro.vue";
import ModeSelection from "../components/project/brief/ModeSelection.vue";
import Images from "../components/project/brief/Images.vue";
import PdfViewer from "../components/project/brief/PdfViewer.vue";
import { usePageStore } from "../stores/page";
import { storeToRefs } from "pinia";

const stepsComponents = {
  Intro,
  ModeSelection,
  Images,
  PdfViewer,
};

const { page } = storeToRefs(usePageStore());

const currentStep = ref(setInitialStep());

function changeStep(stepName) {
  currentStep.value = stepName;
}

function setInitialStep() {
  const hasPDF = page.value.content.pdf.length !== 0;
  const hasImages =
    page.value.content.moodboard.length !== 0 ||
    page.value.content.description.length !== 0;
  const isEmpty = !hasPDF && !hasImages;
  if (isEmpty) return "Intro";
  if (hasImages) return "Images";
}
</script>
