<template>
<div
	v-if="!muted"
	v-show="!isDeleted"
	ref="el"
	v-hotkey="keymap"
	class="tkcbzcuz"
	:tabindex="!isDeleted ? '-1' : null"
	:class="{ renote: isRenote }"
>
	<MkNoteSub v-if="appearNote.reply" :note="appearNote.reply" class="reply-to"/>
	<div v-if="pinned" class="info"><i class="ti ti-pin"></i> {{ i18n.ts.pinnedNote }}</div>
	<div v-if="appearNote._prId_" class="info"><i class="fas fa-bullhorn"></i> {{ i18n.ts.promotion }}<button class="_textButton hide" @click="readPromo()">{{ i18n.ts.hideThisNote }} <i class="ti ti-x"></i></button></div>
	<div v-if="appearNote._featuredId_" class="info"><i class="ti ti-bolt"></i> {{ i18n.ts.featured }}</div>
	<div v-if="isRenote" class="renote">
		<MkAvatar class="avatar" :user="note.user"/>
		<i class="ti ti-repeat"></i>
		<I18n :src="i18n.ts.renotedBy" tag="span">
			<template #user>
				<MkA v-user-preview="note.userId" class="name" :to="userPage(note.user)">
					<MkUserName :user="note.user"/>
				</MkA>
			</template>
		</I18n>
		<div class="info">
			<button ref="renoteTime" class="_button time" @click="showRenoteMenu()">
				<i v-if="isMyRenote" class="ti ti-dots dropdownIcon"></i>
				<MkTime :time="note.createdAt"/>
			</button>
			<MkVisibility :note="note"/>
		</div>
	</div>
	<article class="article" @contextmenu.stop="onContextmenu">
		<MkAvatar class="avatar" :user="appearNote.user"/>
		<div class="main">
			<MkNoteHeader class="header" :note="appearNote" :mini="true"/>
			<MkInstanceTicker v-if="showTicker" class="ticker" :instance="appearNote.user.instance"/>
			<div class="body">
				<p v-if="appearNote.cw != null" class="cw">
					<Mfm v-if="appearNote.cw != ''" class="text" :text="appearNote.cw" :author="appearNote.user" :i="$i"/>
					<MkCwButton v-model="showContent" :note="appearNote"/>
				</p>
				<div v-show="appearNote.cw == null || showContent" class="content" :class="{ collapsed, isLong }">
					<div class="text">
						<span v-if="appearNote.isHidden" style="opacity: 0.5">({{ i18n.ts.private }})</span>
						<MkA v-if="appearNote.replyId" class="reply" :to="`/notes/${appearNote.replyId}`"><i class="ti ti-arrow-back-up"></i></MkA>
						<Mfm v-if="appearNote.text" :text="appearNote.text" :author="appearNote.user" :i="$i"/>
						<a v-if="appearNote.renote != null" class="rp">RN:</a>
						<div v-if="translating || translation" class="translation">
							<MkLoading v-if="translating" mini/>
							<div v-else class="translated">
								<b>{{ $t('translatedFrom', { x: translation.sourceLang }) }}: </b>
								<Mfm :text="translation.text" :author="appearNote.user" :i="$i"/>
							</div>
						</div>
					</div>
					<div v-if="appearNote.files.length > 0" class="files">
						<MkMediaList :media-list="appearNote.files"/>
					</div>
					<MkPoll v-if="appearNote.poll" ref="pollViewer" :note="appearNote" class="poll"/>
					<MkUrlPreview v-for="url in urls" :key="url" :url="url" :compact="true" :detail="false" class="url-preview"/>
					<div v-if="appearNote.renote" class="renote"><MkNoteSimple :note="appearNote.renote"/></div>
					<button v-if="isLong && collapsed" class="fade _button" @click="collapsed = false">
						<span>{{ i18n.ts.showMore }}</span>
					</button>
					<button v-else-if="isLong && !collapsed" class="showLess _button" @click="collapsed = true">
						<span>{{ i18n.ts.showLess }}</span>
					</button>
				</div>
				<MkA v-if="appearNote.channel && !inChannel" class="channel" :to="`/channels/${appearNote.channel.id}`"><i class="ti ti-device-tv"></i> {{ appearNote.channel.name }}</MkA>
			</div>
			<footer class="footer">
				<MkReactionsViewer ref="reactionsViewer" :note="appearNote"/>
				<button class="button _button" @click="reply()">
					<i class="ti ti-arrow-back-up"></i>
					<p v-if="appearNote.repliesCount > 0" class="count">{{ appearNote.repliesCount }}</p>
				</button>
				<MkRenoteButton ref="renoteButton" class="button" :note="appearNote" :count="appearNote.renoteCount"/>
				<button v-if="appearNote.myReaction == null" ref="reactButton" class="button _button" @click="react()">
					<i class="ti ti-plus"></i>
				</button>
				<button v-if="appearNote.myReaction != null" ref="reactButton" class="button _button reacted" @click="undoReact(appearNote)">
					<i class="ti ti-minus"></i>
				</button>
				<button ref="menuButton" class="button _button" @click="menu()">
					<i class="ti ti-dots"></i>
				</button>
			</footer>
		</div>
	</article>
</div>
<div v-else class="muted" @click="muted = false">
	<I18n :src="i18n.ts.userSaysSomething" tag="small">
		<template #name>
			<MkA v-user-preview="appearNote.userId" class="name" :to="userPage(appearNote.user)">
				<MkUserName :user="appearNote.user"/>
			</MkA>
		</template>
	</I18n>
</div>
</template>

<script lang="ts" setup>
import { computed, inject, onMounted, onUnmounted, reactive, ref, Ref } from 'vue';
import * as mfm from 'mfm-js';
import * as misskey from 'misskey-js';
import MkNoteSub from '@/components/MkNoteSub.vue';
import MkNoteHeader from '@/components/MkNoteHeader.vue';
import MkNoteSimple from '@/components/MkNoteSimple.vue';
import MkReactionsViewer from '@/components/MkReactionsViewer.vue';
import MkMediaList from '@/components/MkMediaList.vue';
import MkCwButton from '@/components/MkCwButton.vue';
import MkPoll from '@/components/MkPoll.vue';
import MkRenoteButton from '@/components/MkRenoteButton.vue';
import MkUrlPreview from '@/components/MkUrlPreview.vue';
import MkInstanceTicker from '@/components/MkInstanceTicker.vue';
import MkVisibility from '@/components/MkVisibility.vue';
import { pleaseLogin } from '@/scripts/please-login';
import { focusPrev, focusNext } from '@/scripts/focus';
import { checkWordMute } from '@/scripts/check-word-mute';
import { userPage } from '@/filters/user';
import * as os from '@/os';
import { defaultStore, noteViewInterruptors } from '@/store';
import { reactionPicker } from '@/scripts/reaction-picker';
import { extractUrlFromMfm } from '@/scripts/extract-url-from-mfm';
import { $i } from '@/account';
import { i18n } from '@/i18n';
import { getNoteMenu } from '@/scripts/get-note-menu';
import { useNoteCapture } from '@/scripts/use-note-capture';
import { deepClone } from '@/scripts/clone';

const props = defineProps<{
	note: misskey.entities.Note;
	pinned?: boolean;
}>();

const inChannel = inject('inChannel', null);

let note = $ref(deepClone(props.note));

// plugin
if (noteViewInterruptors.length > 0) {
	onMounted(async () => {
		let result = deepClone(note);
		for (const interruptor of noteViewInterruptors) {
			result = await interruptor.handler(result);
		}
		note = result;
	});
}

const isRenote = (
	note.renote != null &&
	note.text == null &&
	note.fileIds.length === 0 &&
	note.poll == null
);

const el = ref<HTMLElement>();
const menuButton = ref<HTMLElement>();
const renoteButton = ref<InstanceType<typeof MkRenoteButton>>();
const renoteTime = ref<HTMLElement>();
const reactButton = ref<HTMLElement>();
let appearNote = $computed(() => isRenote ? note.renote as misskey.entities.Note : note);
const isMyRenote = $i && ($i.id === note.userId);
const showContent = ref(false);
const isLong = (appearNote.cw == null && appearNote.text != null && (
	(appearNote.text.split('\n').length > 9) ||
	(appearNote.text.length > 500)
));
const collapsed = ref(appearNote.cw == null && isLong);
const isDeleted = ref(false);
const muted = ref(checkWordMute(appearNote, $i, defaultStore.state.mutedWords));
const translation = ref(null);
const translating = ref(false);
const urls = appearNote.text ? extractUrlFromMfm(mfm.parse(appearNote.text)) : null;
const showTicker = (defaultStore.state.instanceTicker === 'always') || (defaultStore.state.instanceTicker === 'remote' && appearNote.user.instance);

const keymap = {
	'r': () => reply(true),
	'e|a|plus': () => react(true),
	'q': () => renoteButton.value.renote(true),
	'up|k|shift+tab': focusBefore,
	'down|j|tab': focusAfter,
	'esc': blur,
	'm|o': () => menu(true),
	's': () => showContent.value !== showContent.value,
};

useNoteCapture({
	rootEl: el,
	note: $$(appearNote),
	isDeletedRef: isDeleted,
});

function reply(viaKeyboard = false): void {
	pleaseLogin();
	os.post({
		reply: appearNote,
		animation: !viaKeyboard,
	}, () => {
		focus();
	});
}

function react(viaKeyboard = false): void {
	pleaseLogin();
	blur();
	reactionPicker.show(reactButton.value, reaction => {
		os.api('notes/reactions/create', {
			noteId: appearNote.id,
			reaction: reaction,
		});
	}, () => {
		focus();
	});
}

function undoReact(note): void {
	const oldReaction = note.myReaction;
	if (!oldReaction) return;
	os.api('notes/reactions/delete', {
		noteId: note.id,
	});
}

const currentClipPage = inject<Ref<misskey.entities.Clip> | null>('currentClipPage', null);

function onContextmenu(ev: MouseEvent): void {
	const isLink = (el: HTMLElement) => {
		if (el.tagName === 'A') return true;
		if (el.parentElement) {
			return isLink(el.parentElement);
		}
	};
	if (isLink(ev.target)) return;
	if (window.getSelection().toString() !== '') return;

	if (defaultStore.state.useReactionPickerForContextMenu) {
		ev.preventDefault();
		react();
	} else {
		os.contextMenu(getNoteMenu({ note: note, translating, translation, menuButton, isDeleted, currentClipPage }), ev).then(focus);
	}
}

function menu(viaKeyboard = false): void {
	os.popupMenu(getNoteMenu({ note: note, translating, translation, menuButton, isDeleted, currentClipPage }), menuButton.value, {
		viaKeyboard,
	}).then(focus);
}

function showRenoteMenu(viaKeyboard = false): void {
	if (!isMyRenote) return;
	os.popupMenu([{
		text: i18n.ts.unrenote,
		icon: 'ti ti-trash',
		danger: true,
		action: () => {
			os.api('notes/delete', {
				noteId: note.id,
			});
			isDeleted.value = true;
		},
	}], renoteTime.value, {
		viaKeyboard: viaKeyboard,
	});
}

function focus() {
	el.value.focus();
}

function blur() {
	el.value.blur();
}

function focusBefore() {
	focusPrev(el.value);
}

function focusAfter() {
	focusNext(el.value);
}

function readPromo() {
	os.api('promo/read', {
		noteId: appearNote.id,
	});
	isDeleted.value = true;
}
</script>

<style lang="scss" scoped>
.tkcbzcuz {
	position: relative;
	transition: box-shadow 0.1s ease;
	font-size: 1.05em;
	overflow: clip;
	contain: content;

	// これらの指定はパフォーマンス向上には有効だが、ノートの高さは一定でないため、
	// 下の方までスクロールすると上のノートの高さがここで決め打ちされたものに変化し、表示しているノートの位置が変わってしまう
	// ノートがマウントされたときに自身の高さを取得し contain-intrinsic-size を設定しなおせばほぼ解決できそうだが、
	// 今度はその処理自体がパフォーマンス低下の原因にならないか懸念される。また、被リアクションでも高さは変化するため、やはり多少のズレは生じる
	// 一度レンダリングされた要素はブラウザがよしなにサイズを覚えておいてくれるような実装になるまで待った方が良さそう(なるのか？)
	//content-visibility: auto;
  //contain-intrinsic-size: 0 128px;

	&:focus-visible {
		outline: none;

		&:after {
			content: "";
			pointer-events: none;
			display: block;
			position: absolute;
			z-index: 10;
			top: 0;
			left: 0;
			right: 0;
			bottom: 0;
			margin: auto;
			width: calc(100% - 8px);
			height: calc(100% - 8px);
			border: dashed 1px var(--focus);
			border-radius: var(--radius);
			box-sizing: border-box;
		}
	}

	&:hover > .article > .main > .footer > .button {
		opacity: 1;
	}

	> .info {
		display: flex;
		align-items: center;
		padding: 16px 32px 8px 32px;
		line-height: 24px;
		font-size: 90%;
		white-space: pre;
		color: #d28a3f;

		> i {
			margin-right: 4px;
		}

		> .hide {
			margin-left: auto;
			color: inherit;
		}
	}

	> .info + .article {
		padding-top: 8px;
	}

	> .reply-to {
		opacity: 0.7;
		padding-bottom: 0;
	}

	> .renote {
		display: flex;
		align-items: center;
		padding: 16px 32px 8px 32px;
		line-height: 28px;
		white-space: pre;
		color: var(--renote);

		> .avatar {
			flex-shrink: 0;
			display: inline-block;
			width: 28px;
			height: 28px;
			margin: 0 8px 0 0;
			border-radius: 6px;
		}

		> i {
			margin-right: 4px;
		}

		> span {
			overflow: hidden;
			flex-shrink: 1;
			text-overflow: ellipsis;
			white-space: nowrap;

			> .name {
				font-weight: bold;
			}
		}

		> .info {
			margin-left: auto;
			font-size: 0.9em;

			> .time {
				flex-shrink: 0;
				color: inherit;

				> .dropdownIcon {
					margin-right: 4px;
				}
			}
		}
	}

	> .renote + .article {
		padding-top: 8px;
	}

	> .article {
		display: flex;
		padding: 28px 32px 18px;

		> .avatar {
			flex-shrink: 0;
			display: block;
			margin: 0 14px 8px 0;
			width: 58px;
			height: 58px;
			position: sticky;
			top: calc(22px + var(--stickyTop, 0px));
			left: 0;
		}

		> .main {
			flex: 1;
			min-width: 0;

			> .body {
				container-type: inline-size;

				> .cw {
					cursor: default;
					display: block;
					margin: 0;
					padding: 0;
					overflow-wrap: break-word;

					> .text {
						margin-right: 8px;
					}
				}

				> .content {
					&.isLong {
						> .showLess {
							width: 100%;
							margin-top: 1em;
							position: sticky;
							bottom: 1em;

							> span {
								display: inline-block;
								background: var(--popup);
								padding: 6px 10px;
								font-size: 0.8em;
								border-radius: 999px;
								box-shadow: 0 2px 6px rgb(0 0 0 / 20%);
							}
						}
					}

					&.collapsed {
						position: relative;
						max-height: 9em;
						overflow: hidden;

						> .fade {
							display: block;
							position: absolute;
							bottom: 0;
							left: 0;
							width: 100%;
							height: 64px;
							background: linear-gradient(0deg, var(--panel), var(--X15));

							> span {
								display: inline-block;
								background: var(--panel);
								padding: 6px 10px;
								font-size: 0.8em;
								border-radius: 999px;
								box-shadow: 0 2px 6px rgb(0 0 0 / 20%);
							}

							&:hover {
								> span {
									background: var(--panelHighlight);
								}
							}
						}
					}

					> .text {
						overflow-wrap: break-word;

						> .reply {
							color: var(--accent);
							margin-right: 0.5em;
						}

						> .rp {
							margin-left: 4px;
							font-style: oblique;
							color: var(--renote);
						}

						> .translation {
							border: solid 0.5px var(--divider);
							border-radius: var(--radius);
							padding: 12px;
							margin-top: 8px;
						}
					}

					> .url-preview {
						margin-top: 8px;
					}

					> .poll {
						font-size: 80%;
					}

					> .renote {
						padding: 8px 0;

						> * {
							padding: 16px;
							border: dashed 1px var(--renote);
							border-radius: 8px;
						}
					}
				}

				> .channel {
					opacity: 0.7;
					font-size: 80%;
				}
			}

			> .footer {
				> .button {
					margin: 0;
					padding: 8px;
					opacity: 0.7;

					&:not(:last-child) {
						margin-right: 28px;
					}

					&:hover {
						color: var(--fgHighlighted);
					}

					> .count {
						display: inline;
						margin: 0 0 0 8px;
						opacity: 0.7;
					}

					&.reacted {
						color: var(--accent);
					}
				}
			}
		}
	}

	> .reply {
		border-top: solid 0.5px var(--divider);
	}
}

@container (max-width: 500px) {
	.tkcbzcuz {
		font-size: 0.9em;

		> .article {
			> .avatar {
				width: 50px;
				height: 50px;
			}
		}
	}
}

@container (max-width: 450px) {
	.tkcbzcuz {
		> .renote {
			padding: 8px 16px 0 16px;
		}

		> .info {
			padding: 8px 16px 0 16px;
		}

		> .article {
			padding: 14px 16px 9px;

			> .avatar {
				margin: 0 10px 8px 0;
				width: 46px;
				height: 46px;
				top: calc(14px + var(--stickyTop, 0px));
			}
		}
	}
}

@container (max-width: 350px) {
	.tkcbzcuz {
		> .article {
			> .main {
				> .footer {
					> .button {
						&:not(:last-child) {
							margin-right: 18px;
						}
					}
				}
			}
		}
	}
}

@container (max-width: 300px) {
	.tkcbzcuz {
		> .article {
			> .avatar {
				width: 44px;
				height: 44px;
			}

			> .main {
				> .footer {
					> .button {
						&:not(:last-child) {
							margin-right: 12px;
						}
					}
				}
			}
		}
	}
}

.muted {
	padding: 8px;
	text-align: center;
	opacity: 0.7;
}
</style>
