<template>
    <div class="post-timeline-component web-wrapper">
        <div v-if="isLoaded" class="container-fluid mt-3">
            <div class="row">
                <div class="col-md-4 col-lg-3 d-md-block">
                    <sidebar :user="user" />
                </div>

                <div class="col-md-8 col-lg-6">
                    <div v-if="isReply" class="p-3 rounded-top mb-n3" style="background-color: var(--card-header-accent)">
                        <p>
                            <i class="fal fa-reply mr-1"></i> In reply to

                            <a
                                :href="'/i/web/profile/' + reply.account.id"
                                class="font-weight-bold primary"
                                @click.prevent="goToProfile(reply.account)">
                                &commat;{{ reply.account.acct }}
                            </a>

                            <button
                                @click.prevent="goToPost(reply)"
                                class="btn btn-primary font-weight-bold btn-sm px-3 float-right rounded-pill">
                                View Post
                            </button>
                        </p>
                    </div>
                    <status
                        :key="post.id + ':fui:' + forceUpdateIdx"
                        :status="post"
                        :profile="user"
                        v-on:menu="openContextMenu()"
                        v-on:like="likeStatus()"
                        v-on:unlike="unlikeStatus()"
                        v-on:likes-modal="openLikesModal()"
                        v-on:shares-modal="openSharesModal()"
                        v-on:bookmark="handleBookmark()"
                        v-on:share="shareStatus()"
                        v-on:unshare="unshareStatus()"
                        v-on:follow="follow()"
                        v-on:unfollow="unfollow()"
                        v-on:counter-change="counterChange"
                        />
                </div>

                <div class="d-none d-lg-block col-lg-3">
                    <rightbar />
                </div>
            </div>
        </div>

        <div v-if="postStateError" class="container-fluid mt-3">
            <div class="row">
                <div class="col-md-4 col-lg-3 d-md-block">
                    <sidebar :user="user" />
                </div>
                <div class="col-md-8 col-lg-6">
                    <div class="card card-body shadow-none border">
                        <div class="d-flex align-self-center flex-column" style="max-width: 500px;">
                            <p class="text-center">
                                <i class="far fa-exclamation-triangle fa-3x text-lighter"></i>
                            </p>
                            <p class="text-center lead font-weight-bold">Error displaying post</p>
                            <p class="mb-0">This can happen for a few reasons:</p>
                            <ul class="text-lighter">
                                <li>The url is invalid or has a typo</li>
                                <li>The page has been flagged for review by our automated abuse detection systems</li>
                                <li>The content may have been deleted</li>
                                <li>You do not have permission to view this content</li>
                            </ul>
                        </div>
                    </div>
                </div>

                <div class="d-none d-lg-block col-lg-3">
                    <rightbar />
                </div>
            </div>
        </div>

        <context-menu
            v-if="isLoaded"
            ref="contextMenu"
            :status="shadowStatus"
            :profile="user"
            @report-modal="handleReport()"
            @delete="deletePost()"
            @pinned="handlePinned()"
            @unpinned="handleUnpinned()"
            v-on:edit="handleEdit"
        />

        <likes-modal
            v-if="showLikesModal"
            ref="likesModal"
            :status="shadowStatus"
            :profile="user"
        />

        <shares-modal
            v-if="showSharesModal"
            ref="sharesModal"
            :status="shadowStatus"
            :profile="profile"
        />

        <report-modal
            v-if="post"
            ref="reportModal"
            :status="shadowStatus"
        />

        <post-edit-modal
            ref="editModal"
            v-on:update="mergeUpdatedPost"
        />

        <drawer />
    </div>
</template>

<script type="text/javascript">
    import Drawer from './partials/drawer.vue';
    import Rightbar from './partials/rightbar.vue';
    import Sidebar from './partials/sidebar.vue';
    import Status from './partials/TimelineStatus.vue';
    import ContextMenu from './partials/post/ContextMenu.vue';
    import MediaContainer from './partials/post/MediaContainer.vue';
    import LikesModal from './partials/post/LikeModal.vue';
    import SharesModal from './partials/post/ShareModal.vue';
    import ReportModal from './partials/modal/ReportPost.vue';
    import PostEditModal from './partials/post/PostEditModal.vue';

    export default {
        props: {
            cachedStatus: {
                type: Object
            },

            cachedProfile: {
                type: Object
            }
        },

        components: {
            "drawer": Drawer,
            "sidebar": Sidebar,
            "status": Status,
            "context-menu": ContextMenu,
            "media-container": MediaContainer,
            "likes-modal": LikesModal,
            "shares-modal": SharesModal,
            "rightbar": Rightbar,
            "report-modal": ReportModal,
            "post-edit-modal": PostEditModal
        },

        data() {
            return {
                isLoaded: false,
                user: undefined,
                profile: undefined,
                post: undefined,
                relationship: {},
                media: undefined,
                mediaIndex: 0,
                showLikesModal: false,
                isReply: false,
                reply: {},
                showSharesModal: false,
                postStateError: false,
                forceUpdateIdx: 0
            }
        },

        created() {
            this.init();
        },

        computed: {
            shadowStatus: {
                get() {
                    return this.post.reblog ? this.post.reblog : this.post;
                }
            }
        },

        watch: {
            '$route': 'init'
        },

        methods: {
            init() {
                this.fetchSelf();
            },

            fetchSelf() {
                this.user = window._sharedData.user;
                this.isReply = false;
                this.fetchPost();
            },

            fetchPost() {
                axios.get('/api/pixelfed/v1/statuses/'+this.$route.params.id)
                .then(res => {
                    if(!res.data || !res.data.hasOwnProperty('id')) {
                        this.$router.push('/i/web/404');
                    }
                    if(!res.data.hasOwnProperty('account') || !res.data.account) {
                        this.postStateError = true;
                        return;
                    }
                    this.post = res.data;
                    this.media = this.post.media_attachments;
                    this.profile = this.post.account;
                    if(res.data.account && res.data.account.local) {
                        window.history.pushState({}, '', `/p/${res.data.account.acct}/${res.data.id}`);
                    }
                    if(this.post.in_reply_to_id) {
                        this.fetchReply();
                    } else {
                        this.fetchRelationship();
                    }
                }).catch(err => {
                    switch(err.response.status) {
                        case 403:
                        case 404:
                            this.$router.push('/i/web/404');
                        break;
                    }
                })
            },

            fetchReply() {
                axios.get('/api/pixelfed/v1/statuses/' + this.post.in_reply_to_id)
                .then(res => {
                    this.reply = res.data;
                    this.isReply = true;
                    this.fetchRelationship();
                })
                .catch(err => {
                    this.fetchRelationship();
                })
            },

            fetchRelationship() {
                if(this.profile.id == this.user.id) {
                    this.relationship = {};
                    this.fetchState();
                    return;
                }

                axios.get('/api/pixelfed/v1/accounts/relationships', {
                    params: {
                        'id[]': this.profile.id
                    }
                }).then(res => {
                    this.relationship = res.data[0];
                    this.fetchState();
                });
            },

            fetchState() {
                axios.get('/api/v2/statuses/'+this.post.id+'/state')
                .then(res => {
                    this.post.favourited = res.data.liked;
                    this.post.reblogged = res.data.shared;
                    this.post.bookmarked = res.data.bookmarked;
                    if(!this.post.favourites_count && this.post.favourited) {
                        this.post.favourites_count = 1;
                    }
                    this.isLoaded = true;
                }).catch(err => {
                    this.isLoaded = false;
                    this.postStateError = true;
                })
            },

            goBack() {
                this.$router.push('/i/web');
            },

            likeStatus() {
                let count = this.post.favourites_count;
                this.post.favourites_count = count + 1;
                this.post.favourited = !this.post.favourited;

                axios.post('/api/v1/statuses/' + this.post.id + '/favourite')
                .then(res => {
                    //
                }).catch(err => {
                    this.post.favourites_count = count;
                    this.post.favourited = false;
                })
            },

            unlikeStatus() {
                let count = this.post.favourites_count;
                this.post.favourites_count = count - 1;
                this.post.favourited = !this.post.favourited;

                axios.post('/api/v1/statuses/' + this.post.id + '/unfavourite')
                .then(res => {
                    //
                }).catch(err => {
                    this.post.favourites_count = count;
                    this.post.favourited = false;
                })
            },

            shareStatus() {
                let count = this.post.reblogs_count;
                this.post.reblogs_count = count + 1;
                this.post.reblogged = !this.post.reblogged;

                axios.post('/api/v1/statuses/' + this.post.id + '/reblog')
                .then(res => {
                    //
                }).catch(err => {
                    this.post.reblogs_count = count;
                    this.post.reblogged = false;
                })
            },

            unshareStatus() {
                let count = this.post.reblogs_count;
                this.post.reblogs_count = count - 1;
                this.post.reblogged = !this.post.reblogged;

                axios.post('/api/v1/statuses/' + this.post.id + '/unreblog')
                .then(res => {
                    //
                }).catch(err => {
                    this.post.reblogs_count = count;
                    this.post.reblogged = false;
                })
            },

            follow() {
                axios.post('/api/v1/accounts/' + this.post.account.id + '/follow')
                .then(res => {
                    this.$store.commit('updateRelationship', [res.data]);
                    this.user.following_count++;
                    this.post.account.followers_count++;
                }).catch(err => {
                    swal('Oops!', 'An error occurred when attempting to follow this account.', 'error');
                    this.post.relationship.following = false;
                });
            },

            unfollow() {
                axios.post('/api/v1/accounts/' + this.post.account.id + '/unfollow')
                .then(res => {
                    this.$store.commit('updateRelationship', [res.data]);
                    this.user.following_count--;
                    this.post.account.followers_count--;
                }).catch(err => {
                    swal('Oops!', 'An error occurred when attempting to unfollow this account.', 'error');
                    this.post.relationship.following = true;
                });
            },

            openContextMenu() {
                this.$nextTick(() => {
                    this.$refs.contextMenu.open();
                });
            },

            openLikesModal() {
                this.showLikesModal = true;
                this.$nextTick(() => {
                    this.$refs.likesModal.open();
                });
            },

            openSharesModal() {
                this.showSharesModal = true;
                this.$nextTick(() => {
                    this.$refs.sharesModal.open();
                });
            },

            deletePost() {
                this.$router.push('/i/web');
            },

            goToPost(post) {
                this.$router.push({
                    name: 'post',
                    path: `/i/web/post/${post.id}`,
                    params: {
                        id: post.id,
                        cachedStatus: post,
                        cachedProfile: this.user
                    }
                })
            },

            goToProfile(account) {
                this.$router.push({
                    name: 'profile',
                    path: `/i/web/profile/${account.id}`,
                    params: {
                        id: account.id,
                        cachedProfile: account,
                        cachedUser: this.user
                    }
                })
            },

            handleBookmark() {
                axios.post('/i/bookmark', {
                    item: this.post.id
                })
                .then(res => {
                    this.post.bookmarked = !this.post.bookmarked;
                })
                .catch(err => {
                    this.$bvToast.toast('Cannot bookmark post at this time.', {
                        title: 'Bookmark Error',
                        variant: 'danger',
                        autoHideDelay: 5000
                    });
                });
            },

            handleReport() {
                this.$nextTick(() => {
                    this.$refs.reportModal.open();
                });
            },

            counterChange(type) {
                switch(type) {
                    case 'comment-increment':
                        this.post.reply_count = this.post.reply_count + 1;
                    break;

                    case 'comment-decrement':
                        this.post.reply_count = this.post.reply_count - 1;
                    break;
                }
            },

            handleEdit(status) {
                this.$refs.editModal.show(status);
            },

            mergeUpdatedPost(post) {
                this.post = post;
                this.$nextTick(() => {
                    this.forceUpdateIdx++;
                });
            },

            handlePinned() {
                this.post.pinned = true;
            },

            handleUnpinned() {
                this.post.pinned = false;
            },
        }
    }
</script>
