<script lang="ts" setup>
import {SvgIcon} from '../svg.ts';
import {diffTreeStore} from '../modules/stores.ts';
import {ref} from 'vue';

type File = {
  Name: string;
  NameHash: string;
  Type: number;
  IsViewed: boolean;
  IsSubmodule: boolean;
}

type Item = {
  name: string;
  isFile: boolean;
  file?: File;
  children?: Item[];
};

defineProps<{
  item: Item,
}>();

const store = diffTreeStore();
const collapsed = ref(false);

function getIconForDiffType(pType: number) {
  const diffTypes = {
    1: {name: 'octicon-diff-added', classes: ['text', 'green']},
    2: {name: 'octicon-diff-modified', classes: ['text', 'yellow']},
    3: {name: 'octicon-diff-removed', classes: ['text', 'red']},
    4: {name: 'octicon-diff-renamed', classes: ['text', 'teal']},
    5: {name: 'octicon-diff-renamed', classes: ['text', 'green']}, // there is no octicon for copied, so renamed should be ok
  };
  return diffTypes[pType];
}

function fileIcon(file: File) {
  if (file.IsSubmodule) {
    return 'octicon-file-submodule';
  }
  return 'octicon-file';
}
</script>

<template>
  <!--title instead of tooltip above as the tooltip needs too much work with the current methods, i.e. not being loaded or staying open for "too long"-->
  <a
    v-if="item.isFile" class="item-file"
    :class="{'selected': store.selectedItem === '#diff-' + item.file.NameHash, 'viewed': item.file.IsViewed}"
    :title="item.name" :href="'#diff-' + item.file.NameHash"
  >
    <!-- file -->
    <SvgIcon :name="fileIcon(item.file)"/>
    <span class="gt-ellipsis tw-flex-1">{{ item.name }}</span>
    <SvgIcon :name="getIconForDiffType(item.file.Type).name" :class="getIconForDiffType(item.file.Type).classes"/>
  </a>
  <div v-else class="item-directory" :title="item.name" @click.stop="collapsed = !collapsed">
    <!-- directory -->
    <SvgIcon :name="collapsed ? 'octicon-chevron-right' : 'octicon-chevron-down'"/>
    <SvgIcon class="text primary" :name="collapsed ? 'octicon-file-directory-fill' : 'octicon-file-directory-open-fill'"/>
    <span class="gt-ellipsis">{{ item.name }}</span>
  </div>

  <div v-if="item.children?.length" v-show="!collapsed" class="sub-items">
    <DiffFileTreeItem v-for="childItem in item.children" :key="childItem.name" :item="childItem"/>
  </div>
</template>
<style scoped>
a, a:hover {
  text-decoration: none;
  color: var(--color-text);
}

.sub-items {
  display: flex;
  flex-direction: column;
  gap: 1px;
  margin-left: 13px;
  border-left: 1px solid var(--color-secondary);
}

.sub-items .item-file {
  padding-left: 18px;
}

.item-file.selected {
  color: var(--color-text);
  background: var(--color-active);
  border-radius: 4px;
}

.item-file.viewed {
  color: var(--color-text-light-3);
}

.item-directory {
  user-select: none;
}

.item-file,
.item-directory {
  display: flex;
  align-items: center;
  gap: 0.25em;
  padding: 6px;
}

.item-file:hover,
.item-directory:hover {
  color: var(--color-text);
  background: var(--color-hover);
  border-radius: 4px;
  cursor: pointer;
}
</style>
