<script setup lang="ts">
import {
	BoxesIcon,
	ClockIcon,
	DownloadIcon,
	HeartIcon,
	MoreVerticalIcon,
	SettingsIcon,
	SpinnerIcon,
	XIcon,
} from '@modrinth/assets'
import { Tooltip } from 'floating-vue'
import { computed, getCurrentInstance, onMounted, onUnmounted, ref } from 'vue'
import type { RouteLocationRaw } from 'vue-router'

import AutoLink from '#ui/components/base/AutoLink.vue'
import Avatar from '#ui/components/base/Avatar.vue'
import BulletDivider from '#ui/components/base/BulletDivider.vue'
import ButtonStyled from '#ui/components/base/ButtonStyled.vue'
import OverflowMenu, {
	type Option as OverflowMenuOption,
} from '#ui/components/base/OverflowMenu.vue'
import TagItem from '#ui/components/base/TagItem.vue'
import TeleportOverflowMenu from '#ui/components/servers/files/explorer/TeleportOverflowMenu.vue'
import { useRelativeTime } from '#ui/composables/how-ago'
import { defineMessages, useVIntl } from '#ui/composables/i18n'
import { commonMessages } from '#ui/utils/common-messages'

import type {
	ContentModpackCardCategory,
	ContentModpackCardProject,
	ContentModpackCardVersion,
	ContentOwner,
} from '../types'

const { formatMessage } = useVIntl()

const messages = defineMessages({
	updating: {
		id: 'content.modpack-card.updating',
		defaultMessage: 'Updating...',
	},
	contentHintTitle: {
		id: 'content.modpack-card.content-hint-title',
		defaultMessage: 'Modpack content moved',
	},
	contentHintDescription: {
		id: 'content.modpack-card.content-hint-description',
		defaultMessage: "Your modpack's content can now be found here!",
	},
	dismissHint: {
		id: 'content.modpack-card.dismiss-hint',
		defaultMessage: "Don't show again",
	},
})

interface Props {
	project: ContentModpackCardProject
	projectLink?: string | RouteLocationRaw
	version?: ContentModpackCardVersion
	versionLink?: string | RouteLocationRaw
	owner?: ContentOwner
	categories?: ContentModpackCardCategory[]
	disabled?: boolean
	overflowOptions?: OverflowMenuOption[]
	hasUpdate?: boolean
	disabledText?: string
	showContentHint?: boolean
}

withDefaults(defineProps<Props>(), {
	projectLink: undefined,
	version: undefined,
	versionLink: undefined,
	owner: undefined,
	categories: undefined,
	disabled: false,
	overflowOptions: undefined,
	hasUpdate: false,
	disabledText: undefined,
	showContentHint: false,
})

const emit = defineEmits<{
	update: []
	content: []
	settings: []
	'dismiss-content-hint': []
}>()

const instance = getCurrentInstance()
const hasUpdateListener = computed(() => typeof instance?.vnode.props?.onUpdate === 'function')
const hasContentListener = computed(() => typeof instance?.vnode.props?.onContent === 'function')
const hasSettingsListener = computed(() => typeof instance?.vnode.props?.onSettings === 'function')

const formatTimeAgo = useRelativeTime()

const formatCompact = (n: number | undefined) => {
	if (n === undefined) return ''
	return new Intl.NumberFormat('en', { notation: 'compact', maximumFractionDigits: 2 }).format(n)
}

const collapsedOptions = computed(() => {
	const options: {
		id: string
		action: () => void
		color?: 'standard' | 'red' | 'brand' | 'orange' | 'green' | 'blue' | 'purple'
	}[] = []
	if (hasContentListener.value) {
		options.push({
			id: 'content',
			action: () => emit('content'),
		})
	}
	if (hasSettingsListener.value) {
		options.push({
			id: 'settings',
			action: () => emit('settings'),
		})
	}
	return options
})

const containerRef = ref<HTMLElement | null>(null)
const isExpanded = ref(true)
const observer = new ResizeObserver((entries) => {
	for (const entry of entries) {
		isExpanded.value = entry.contentRect.width >= 700
	}
})
onMounted(() => {
	if (containerRef.value) observer.observe(containerRef.value)
})
onUnmounted(() => {
	observer.disconnect()
})
</script>

<template>
	<div
		ref="containerRef"
		class="@container flex flex-col gap-4 rounded-[20px] bg-bg-raised p-6 shadow-md"
		:class="{ 'opacity-50': disabled }"
	>
		<div class="flex flex-wrap items-start justify-between gap-4">
			<div class="flex min-w-0 flex-1 items-start gap-4">
				<AutoLink :to="projectLink" class="shrink-0">
					<Avatar :src="project.icon_url" :alt="project.title" size="5rem" no-shadow raised />
				</AutoLink>
				<div class="flex flex-col gap-1.5">
					<AutoLink
						:to="projectLink"
						class="text-xl font-semibold leading-8 text-contrast hover:underline"
					>
						{{ project.title }}
					</AutoLink>
					<div class="flex flex-nowrap items-center gap-2 overflow-hidden text-secondary">
						<AutoLink
							v-if="owner"
							:to="owner.link"
							class="flex shrink-0 items-center gap-1.5 hover:underline"
						>
							<Avatar
								:src="owner.avatar_url"
								:alt="owner.name"
								size="2rem"
								:circle="owner.type === 'user'"
								no-shadow
							/>
							<span class="font-medium whitespace-nowrap">{{ owner.name }}</span>
						</AutoLink>
						<template v-if="version">
							<BulletDivider v-if="owner" />
							<AutoLink
								:to="versionLink"
								class="shrink-0 font-medium text-secondary !decoration-secondary whitespace-nowrap"
								:class="versionLink ? 'hover:underline' : ''"
							>
								{{ version.version_number }}
							</AutoLink>
						</template>
						<template v-if="version?.date_published">
							<BulletDivider />
							<div class="flex shrink-0 items-center gap-2 whitespace-nowrap">
								<ClockIcon class="size-5" />
								<span>{{ formatTimeAgo(new Date(version.date_published)) }}</span>
							</div>
						</template>
					</div>
				</div>
			</div>

			<div class="flex shrink-0 items-center gap-2">
				<template v-if="disabled">
					<div class="flex items-center gap-2 text-secondary">
						<SpinnerIcon class="animate-spin" />
						<span class="font-semibold">{{
							disabledText ?? formatMessage(messages.updating)
						}}</span>
					</div>
				</template>
				<template v-else>
					<!-- Expanded actions visible at >= 700px -->
					<div class="hidden @[700px]:flex items-center gap-2">
						<ButtonStyled
							v-if="hasUpdateListener && hasUpdate"
							type="transparent"
							color="green"
							color-fill="text"
						>
							<button class="flex items-center gap-2" @click="emit('update')">
								<DownloadIcon class="!text-green" />
								<span class="font-semibold">{{ formatMessage(commonMessages.updateButton) }}</span>
							</button>
						</ButtonStyled>

						<Tooltip
							v-if="hasContentListener"
							theme="dismissable-prompt"
							:triggers="[]"
							:shown="showContentHint && isExpanded"
							:auto-hide="false"
							placement="bottom-end"
						>
							<ButtonStyled>
								<button
									class="!shadow-none"
									@click="
										() => {
											emit('content')
											emit('dismiss-content-hint')
										}
									"
								>
									<BoxesIcon />
									{{ formatMessage(commonMessages.contentLabel) }}
								</button>
							</ButtonStyled>
							<template #popper>
								<div class="experimental-styles-within grid grid-cols-[min-content] gap-1">
									<div class="flex min-w-48 items-center justify-between gap-8">
										<h3 class="m-0 whitespace-nowrap text-base font-bold text-contrast">
											{{ formatMessage(messages.contentHintTitle) }}
										</h3>
										<ButtonStyled size="small" circular>
											<button
												v-tooltip="formatMessage(messages.dismissHint)"
												@click="emit('dismiss-content-hint')"
											>
												<XIcon aria-hidden="true" />
											</button>
										</ButtonStyled>
									</div>
									<p class="m-0 text-wrap text-sm font-medium leading-tight text-secondary">
										{{ formatMessage(messages.contentHintDescription) }}
									</p>
								</div>
							</template>
						</Tooltip>

						<ButtonStyled v-if="hasSettingsListener" type="outlined" circular>
							<button
								class="!border !border-surface-4"
								@click="
									() => {
										emit('settings')
										emit('dismiss-content-hint')
									}
								"
							>
								<SettingsIcon />
							</button>
						</ButtonStyled>
					</div>

					<!-- Collapsed actions visible at < 700px -->
					<div v-if="hasUpdate && hasUpdateListener" class="flex @[700px]:hidden">
						<ButtonStyled circular type="transparent" color="green" color-fill="text">
							<button
								v-tooltip="formatMessage(commonMessages.updateButton)"
								@click="emit('update')"
							>
								<DownloadIcon class="size-5" />
							</button>
						</ButtonStyled>
					</div>
					<Tooltip
						v-if="collapsedOptions.length"
						theme="dismissable-prompt"
						:triggers="[]"
						:shown="showContentHint && !isExpanded"
						:auto-hide="false"
						placement="bottom-end"
					>
						<ButtonStyled circular type="outlined"
							><TeleportOverflowMenu
								:options="collapsedOptions"
								class="flex @[700px]:hidden"
								btn-class="!border-surface-4 !border"
								@open="emit('dismiss-content-hint')"
							>
								<MoreVerticalIcon class="size-5" />
								<template #content>
									<BoxesIcon class="size-5" />
									{{ formatMessage(commonMessages.contentLabel) }}
								</template>
								<template #settings>
									<SettingsIcon class="size-5" />
									{{ formatMessage(commonMessages.settingsLabel) }}
								</template>
							</TeleportOverflowMenu></ButtonStyled
						>
						<template #popper>
							<div class="experimental-styles-within grid grid-cols-[min-content] gap-1">
								<div class="flex min-w-48 items-center justify-between gap-8">
									<h3 class="m-0 whitespace-nowrap text-base font-bold text-contrast">
										{{ formatMessage(messages.contentHintTitle) }}
									</h3>
									<ButtonStyled size="small" circular>
										<button
											v-tooltip="formatMessage(messages.dismissHint)"
											@click="emit('dismiss-content-hint')"
										>
											<XIcon aria-hidden="true" />
										</button>
									</ButtonStyled>
								</div>
								<p class="m-0 text-wrap text-sm font-medium leading-tight text-secondary">
									{{ formatMessage(messages.contentHintDescription) }}
								</p>
							</div>
						</template>
					</Tooltip>

					<ButtonStyled
						v-if="overflowOptions?.length"
						circular
						type="transparent"
						class="hidden @[700px]:flex"
					>
						<OverflowMenu :options="overflowOptions">
							<MoreVerticalIcon class="size-5" />
						</OverflowMenu>
					</ButtonStyled>
				</template>
			</div>
		</div>

		<span v-if="project.description" class="text-secondary">
			{{ project.description }}
		</span>

		<div class="flex flex-wrap items-center gap-3">
			<div v-if="project.downloads !== undefined" class="flex items-center gap-2 text-secondary">
				<DownloadIcon class="size-5" />
				<span class="font-medium">{{ formatCompact(project.downloads) }}</span>
			</div>

			<div v-if="project.followers !== undefined" class="flex items-center gap-2 text-secondary">
				<HeartIcon class="size-5" />
				<span class="font-medium">{{ formatCompact(project.followers) }}</span>
			</div>

			<div v-if="categories?.length" class="flex flex-wrap items-center gap-1">
				<TagItem v-for="cat in categories" :key="cat.name" :action="cat.action">
					{{ cat.name }}
				</TagItem>
			</div>
		</div>
	</div>
</template>
