<script>
import AboutMailpit from '../components/AboutMailpit.vue'
import AjaxLoader from '../components/AjaxLoader.vue'
import CommonMixins from '../mixins/CommonMixins'
import ListMessages from '../components/ListMessages.vue'
import MessagesMixins from '../mixins/MessagesMixins'
import NavSearch from '../components/NavSearch.vue'
import NavTags from '../components/NavTags.vue'
import Pagination from '../components/Pagination.vue'
import SearchForm from '../components/SearchForm.vue'
import { mailbox } from '../stores/mailbox'
import { pagination } from '../stores/pagination'

export default {
	mixins: [CommonMixins, MessagesMixins],

	// global event bus to handle message status changes
	inject: ["eventBus"],

	components: {
		AboutMailpit,
		AjaxLoader,
		ListMessages,
		NavSearch,
		NavTags,
		Pagination,
		SearchForm,
	},

	data() {
		return {
			mailbox,
			pagination,
			delayedRefresh: false,
		}
	},

	watch: {
		$route(to, from) {
			this.doSearch()
		}
	},

	mounted() {
		mailbox.searching = this.getSearch()
		this.doSearch()

		// subscribe to events
		this.eventBus.on("update", this.handleWSUpdate)
		this.eventBus.on("delete", this.handleWSDelete)
		this.eventBus.on("truncate", this.handleWSTruncate)
	},

	unmounted() {
		// unsubscribe from events
		this.eventBus.off("update", this.handleWSUpdate)
		this.eventBus.off("delete", this.handleWSDelete)
		this.eventBus.off("truncate", this.handleWSTruncate)
	},

	methods: {
		doSearch() {
			const s = this.getSearch()

			if (!s) {
				mailbox.searching = false
				this.$router.push('/')
				return
			}

			mailbox.searching = s

			this.apiURI = this.resolve(`/api/v1/search`) + '?query=' + encodeURIComponent(s)
			if (mailbox.timeZone != '' && (s.indexOf('after:') != -1 || s.indexOf('before:') != -1)) {
				this.apiURI += '&tz=' + encodeURIComponent(mailbox.timeZone)
			}
			this.loadMessages()
		},

		// handler for websocket message updates
		handleWSUpdate(data) {
			for (let x = 0; x < this.mailbox.messages.length; x++) {
				if (this.mailbox.messages[x].ID == data.ID) {
					// update message
					this.mailbox.messages[x] = { ...this.mailbox.messages[x], ...data }
					return
				}
			}
		},

		// handler for websocket message deletion
		handleWSDelete(data) {
			let removed = 0;
			for (let x = 0; x < this.mailbox.messages.length; x++) {
				if (this.mailbox.messages[x].ID == data.ID) {
					// remove message from the list
					this.mailbox.messages.splice(x, 1)
					removed++
					continue
				}
			}

			if (!removed || this.delayedRefresh) {
				// nothing changed on this screen, or a refresh is queued, don't refresh
				return
			}

			// delayedRefresh prevents unnecessary reloads when multiple messages are deleted
			this.delayedRefresh = true

			window.setTimeout(() => {
				this.delayedRefresh = false
				this.loadMessages()
			}, 500)
		},

		// handler for websocket message truncation
		handleWSTruncate() {
			// all messages deleted, go back to inbox
			this.$router.push('/')
		},
	}
}
</script>

<template>
	<div class="navbar navbar-expand-lg navbar-dark row flex-shrink-0 bg-primary text-white">
		<div class="col-xl-2 col-md-3 col-auto pe-0">
			<RouterLink to="/" class="navbar-brand text-white me-0" @click="pagination.start = 0">
				<img :src="resolve('/mailpit.svg')" alt="Mailpit">
				<span class="ms-2 d-none d-sm-inline">Mailpit</span>
			</RouterLink>
		</div>
		<div class="col col-md-4k col-lg-5 col-xl-6">
			<SearchForm @loadMessages="loadMessages" />
		</div>
		<div class="col-12 col-md-auto col-lg-4 col-xl-4 text-end mt-2 mt-lg-0">
			<div class="float-start d-md-none">
				<button class="btn btn-outline-light me-2" type="button" data-bs-toggle="offcanvas"
					data-bs-target="#offcanvas" aria-controls="offcanvas">
					<i class="bi bi-list"></i>
				</button>
			</div>
			<Pagination :total="mailbox.count" />
		</div>
	</div>

	<div class="offcanvas-md offcanvas-start d-md-none" data-bs-scroll="true" tabindex="-1" id="offcanvas"
		aria-labelledby="offcanvasLabel">
		<div class="offcanvas-header">
			<h5 class="offcanvas-title" id="offcanvasLabel">Mailpit</h5>
			<button type="button" class="btn-close" data-bs-dismiss="offcanvas" data-bs-target="#offcanvas"
				aria-label="Close"></button>
		</div>
		<div class="offcanvas-body pb-0">
			<div class="d-flex flex-column h-100">
				<div class="flex-grow-1 overflow-y-auto">
					<NavSearch @loadMessages="loadMessages" />
					<NavTags />
				</div>
				<AboutMailpit />
			</div>
		</div>
	</div>

	<div class="row flex-fill" style="min-height:0">
		<div class="d-none d-md-flex h-100 col-xl-2 col-md-3 flex-column">
			<div class="flex-grow-1 overflow-y-auto">
				<NavSearch @loadMessages="loadMessages" />
				<NavTags />
			</div>
			<AboutMailpit />
		</div>

		<div class="col-xl-10 col-md-9 mh-100 ps-0 ps-md-2 pe-0">
			<div class="mh-100" style="overflow-y: auto;" id="message-page">
				<ListMessages :loading-messages="loading" />
			</div>
		</div>
	</div>

	<NavSearch @loadMessages="loadMessages" modals />
	<AboutMailpit modals />
	<AjaxLoader :loading="loading" />
</template>
