From 9014baab92007fcdd624be9e81e45ba92dce97ae Mon Sep 17 00:00:00 2001
From: rr- <rr-@sakuya.pl>
Date: Wed, 17 Aug 2016 13:01:17 +0200
Subject: [PATCH] client/snapshots: add snapshots browser

---
 client/css/snapshots.styl                     |  44 ++++++
 client/html/home_featured_post.tpl            |   2 +-
 client/html/home_footer.tpl                   |   4 +
 client/html/snapshots_page.tpl                |  31 +++++
 client/js/controllers/history_controller.js   |  16 ---
 client/js/controllers/home_controller.js      |   1 +
 client/js/controllers/snapshots_controller.js |  41 ++++++
 client/js/main.js                             |   2 +-
 client/js/models/snapshot.js                  |  40 ++++++
 client/js/models/snapshot_list.js             |  25 ++++
 client/js/util/views.js                       |  28 ++--
 client/js/views/snapshots_page_view.js        | 131 ++++++++++++++++++
 12 files changed, 338 insertions(+), 27 deletions(-)
 create mode 100644 client/css/snapshots.styl
 create mode 100644 client/html/snapshots_page.tpl
 delete mode 100644 client/js/controllers/history_controller.js
 create mode 100644 client/js/controllers/snapshots_controller.js
 create mode 100644 client/js/models/snapshot.js
 create mode 100644 client/js/models/snapshot_list.js
 create mode 100644 client/js/views/snapshots_page_view.js

diff --git a/client/css/snapshots.styl b/client/css/snapshots.styl
new file mode 100644
index 00000000..dc94bd0b
--- /dev/null
+++ b/client/css/snapshots.styl
@@ -0,0 +1,44 @@
+$snapshot-created-background-color = #E0F5E0
+$snapshot-modified-background-color = #E0F5FF
+$snapshot-deleted-background-color = #FDE5E5
+$snapshot-merged-background-color = #FEC
+
+.snapshot-list
+    text-align: left
+
+    ul
+        margin: 0 auto
+        width: 100%
+        max-width: 35em
+        list-style-type: none
+
+        li
+            .time
+                float: right
+
+            div
+                padding: 0.1em 0.5em
+                .thumbnail
+                    margin-left: 0
+                &:empty
+                    padding: 0
+
+            div.operation-created
+                background: $snapshot-created-background-color
+                &+.details
+                    background: lighten($snapshot-created-background-color, 50%)
+            div.operation-modified
+                background: $snapshot-modified-background-color
+                &+.details
+                    background: lighten($snapshot-modified-background-color, 50%)
+            div.operation-deleted
+                background: $snapshot-deleted-background-color
+                &+.details
+                    background: lighten($snapshot-deleted-background-color, 50%)
+            div.operation-merged
+                background: $snapshot-merged-background-color
+                &+.details
+                    background: lighten($snapshot-merged-background-color, 50%)
+
+            div.details
+                margin-bottom: 2em
diff --git a/client/html/home_featured_post.tpl b/client/html/home_featured_post.tpl
index 90851d79..33b9c3c8 100644
--- a/client/html/home_featured_post.tpl
+++ b/client/html/home_featured_post.tpl
@@ -1,7 +1,7 @@
 <div class='post-container'></div>
 <% if (ctx.featuredPost) { %>
     <aside>
-        Featured post: <%= ctx.makePostLink(ctx.featuredPost.id) %>,
+        Featured post: <%= ctx.makePostLink(ctx.featuredPost.id, true) %>,
         posted
         <%= ctx.makeRelativeTime(ctx.featuredPost.creationTime) %>
         by
diff --git a/client/html/home_footer.tpl b/client/html/home_footer.tpl
index 47d25e8b..80baccbc 100644
--- a/client/html/home_footer.tpl
+++ b/client/html/home_footer.tpl
@@ -4,3 +4,7 @@
 <span class=sep>&bull;</span>
 Build <a class='version' href='https://github.com/rr-/szurubooru/commits/master'><%- ctx.version %></a>
 from <%= ctx.makeRelativeTime(ctx.buildDate) %>
+<% if (ctx.canListSnapshots) { %>
+    <span class=sep>&bull;</span>
+    <a href='/history'>History</a>
+<% } %>
diff --git a/client/html/snapshots_page.tpl b/client/html/snapshots_page.tpl
new file mode 100644
index 00000000..c84e19f7
--- /dev/null
+++ b/client/html/snapshots_page.tpl
@@ -0,0 +1,31 @@
+<div class='snapshot-list'>
+    <% if (ctx.results.length) { %>
+        <ul>
+            <% for (let item of ctx.results) { %>
+                <li>
+                    <div class='header operation-<%= item.operation %>'>
+                        <span class='time'>
+                            <%= ctx.makeRelativeTime(item.time) %>
+                        </span>
+
+                        <%= ctx.makeUserLink(item.user) %>
+
+                        <%= item.operation %>
+
+                        <%= ctx.makeResourceLink(item.type, item.id) %>
+                    </div>
+
+                    <div class='details'><!--
+                        --><% if (item.operation === 'created') { %><!--
+                            --><%= ctx.makeItemCreation(item.type, item.data) %><!--
+                        --><% } else if (item.operation === 'modified') { %><!--
+                            --><%= ctx.makeItemModification(item.type, item.data) %><!--
+                        --><% } else if (item.operation === 'merged') { %><!--
+                            -->Merged to <%= ctx.makeResourceLink(item.data[0], item.data[1]) %><!--
+                        --><% } %><!--
+                    --></div>
+                </li>
+            <% } %>
+        </ul>
+    <% } %>
+</div>
diff --git a/client/js/controllers/history_controller.js b/client/js/controllers/history_controller.js
deleted file mode 100644
index 05c7c918..00000000
--- a/client/js/controllers/history_controller.js
+++ /dev/null
@@ -1,16 +0,0 @@
-'use strict';
-
-const topNavigation = require('../models/top_navigation.js');
-
-class HistoryController {
-    constructor() {
-        topNavigation.activate('');
-        topNavigation.setTitle('History');
-    }
-}
-
-module.exports = router => {
-    router.enter('/history', (ctx, next) => {
-        ctx.controller = new HistoryController();
-    });
-};
diff --git a/client/js/controllers/home_controller.js b/client/js/controllers/home_controller.js
index 4def183b..c8f81c39 100644
--- a/client/js/controllers/home_controller.js
+++ b/client/js/controllers/home_controller.js
@@ -15,6 +15,7 @@ class HomeController {
             name: config.name,
             version: config.meta.version,
             buildDate: config.meta.buildDate,
+            canListSnapshots: api.hasPrivilege('snapshots:list'),
             canListPosts: api.hasPrivilege('posts:list'),
         });
 
diff --git a/client/js/controllers/snapshots_controller.js b/client/js/controllers/snapshots_controller.js
new file mode 100644
index 00000000..e1f67bdf
--- /dev/null
+++ b/client/js/controllers/snapshots_controller.js
@@ -0,0 +1,41 @@
+'use strict';
+
+const api = require('../api.js');
+const misc = require('../util/misc.js');
+const SnapshotList = require('../models/snapshot_list.js');
+const PageController = require('../controllers/page_controller.js');
+const topNavigation = require('../models/top_navigation.js');
+const SnapshotsPageView = require('../views/snapshots_page_view.js');
+
+class SnapshotsController {
+    constructor(ctx) {
+        topNavigation.activate('');
+        topNavigation.setTitle('History');
+
+        this._pageController = new PageController({
+            parameters: ctx.parameters,
+            getClientUrlForPage: page => {
+                const parameters = Object.assign(
+                    {}, ctx.parameters, {page: page});
+                return '/history/' + misc.formatUrlParameters(parameters);
+            },
+            requestPage: page => {
+                return SnapshotList.search('', page, 25);
+            },
+            pageRenderer: pageCtx => {
+                Object.assign(pageCtx, {
+                    canViewPosts: api.hasPrivilege('posts:view'),
+                    canViewUsers: api.hasPrivilege('users:view'),
+                    canViewTags: api.hasPrivilege('tags:view'),
+                });
+                return new SnapshotsPageView(pageCtx);
+            },
+        });
+    }
+}
+
+module.exports = router => {
+    router.enter('/history/:parameters?',
+        (ctx, next) => { misc.parseUrlParametersRoute(ctx, next); },
+        (ctx, next) => { ctx.controller = new SnapshotsController(ctx); });
+};
diff --git a/client/js/main.js b/client/js/main.js
index 158e787a..25b64695 100644
--- a/client/js/main.js
+++ b/client/js/main.js
@@ -33,7 +33,7 @@ controllers.push(require('./controllers/help_controller.js'));
 controllers.push(require('./controllers/auth_controller.js'));
 controllers.push(require('./controllers/password_reset_controller.js'));
 controllers.push(require('./controllers/comments_controller.js'));
-controllers.push(require('./controllers/history_controller.js'));
+controllers.push(require('./controllers/snapshots_controller.js'));
 controllers.push(require('./controllers/post_controller.js'));
 controllers.push(require('./controllers/post_list_controller.js'));
 controllers.push(require('./controllers/post_upload_controller.js'));
diff --git a/client/js/models/snapshot.js b/client/js/models/snapshot.js
new file mode 100644
index 00000000..78b367c1
--- /dev/null
+++ b/client/js/models/snapshot.js
@@ -0,0 +1,40 @@
+'use strict';
+
+const api = require('../api.js');
+const events = require('../events.js');
+
+class Snapshot extends events.EventTarget {
+    constructor() {
+        super();
+        this._orig = {};
+        this._updateFromResponse({});
+    }
+
+    get operation() { return this._operation; }
+    get type()      { return this._type; }
+    get id()        { return this._id; }
+    get user()      { return this._user; }
+    get data()      { return this._data; }
+    get time()      { return this._time; }
+
+    static fromResponse(response) {
+        const ret = new Snapshot();
+        ret._updateFromResponse(response);
+        return ret;
+    }
+
+    _updateFromResponse(response) {
+        const map = {
+            _operation: response.operation,
+            _type:      response.type,
+            _id:        response.id,
+            _user:      response.user,
+            _data:      response.data,
+            _time:      response.time,
+        };
+
+        Object.assign(this, map);
+    }
+}
+
+module.exports = Snapshot;
diff --git a/client/js/models/snapshot_list.js b/client/js/models/snapshot_list.js
new file mode 100644
index 00000000..628ee295
--- /dev/null
+++ b/client/js/models/snapshot_list.js
@@ -0,0 +1,25 @@
+'use strict';
+
+const api = require('../api.js');
+const AbstractList = require('./abstract_list.js');
+const Snapshot = require('./snapshot.js');
+
+class SnapshotList extends AbstractList {
+    static search(text, page, pageSize) {
+        const url =
+            `/snapshots/?query=${text}` +
+            `&page=${page}` +
+            `&pageSize=${pageSize}`;
+        return api.get(url).then(response => {
+            return Promise.resolve(Object.assign(
+                {},
+                response,
+                {results: SnapshotList.fromResponse(response.results)}));
+        });
+    }
+}
+
+SnapshotList._itemClass = Snapshot;
+SnapshotList._itemName = 'snapshot';
+
+module.exports = SnapshotList;
diff --git a/client/js/util/views.js b/client/js/util/views.js
index a98e4c05..2bd3531b 100644
--- a/client/js/util/views.js
+++ b/client/js/util/views.js
@@ -169,28 +169,36 @@ function getPostEditUrl(id, parameters) {
     return url;
 }
 
-function makePostLink(id) {
-    const text = '@' + id;
+function makePostLink(id, includeHash) {
+    let text = id;
+    if (includeHash) {
+        text = '@' + id;
+    }
     return api.hasPrivilege('posts:view') ?
         makeNonVoidElement(
             'a', {'href': '/post/' + encodeURIComponent(id)}, text) :
         text;
 }
 
-function makeTagLink(name) {
+function makeTagLink(name, includeHash) {
     const tag = tags.getTagByName(name);
     const category = tag ? tag.category : 'unknown';
+    let text = name;
+    if (includeHash === true) {
+        text = '#' + text;
+    }
     return api.hasPrivilege('tags:view') ?
         makeNonVoidElement(
-            'a', {
+            'a',
+            {
                 'href': '/tag/' + encodeURIComponent(name),
                 'class': misc.makeCssName(category, 'tag'),
-            }, name) :
-        makeNonVoidElement(
-            'span', {
-                'class': misc.makeCssName(category, 'tag'),
             },
-            name);
+            text) :
+        makeNonVoidElement(
+            'span',
+            {'class': misc.makeCssName(category, 'tag')},
+            text);
 }
 
 function makeUserLink(user) {
@@ -477,6 +485,8 @@ module.exports = misc.arrayToObject([
     decorateValidator,
     makeVoidElement,
     makeNonVoidElement,
+    makeTagLink,
+    makePostLink,
     syncScrollPosition,
     slideDown,
     slideUp,
diff --git a/client/js/views/snapshots_page_view.js b/client/js/views/snapshots_page_view.js
new file mode 100644
index 00000000..77fbe132
--- /dev/null
+++ b/client/js/views/snapshots_page_view.js
@@ -0,0 +1,131 @@
+'use strict';
+
+const views = require('../util/views.js');
+
+const template = views.getTemplate('snapshots-page');
+
+function _extend(target, source) {
+    target.push.apply(target, source);
+}
+
+function _formatBasicChange(diff, text) {
+    const lines = [];
+    if (diff.type === 'list change') {
+        const addedItems = diff.added;
+        const removedItems = diff.removed;
+        if (addedItems && addedItems.length) {
+            lines.push(`Added ${text} (${addedItems.join(', ')})`);
+        }
+        if (removedItems && removedItems.length) {
+            lines.push(`Removed ${text} (${removedItems.join(', ')})`);
+        }
+    } else if (diff.type === 'primitive change') {
+        const oldValue = diff['old-value'];
+        const newValue = diff['new-value'];
+        lines.push(`Changed ${text} (${oldValue} &rarr; ${newValue})`);
+    } else {
+        lines.push(`Changed ${text}`);
+    }
+    return lines;
+}
+
+function _makeResourceLink(type, id) {
+    if (type === 'post') {
+        return views.makePostLink(id, true);
+    } else if (type === 'tag') {
+        return views.makeTagLink(id, true);
+    } else if (type === 'tag_category') {
+        return 'category "' + id + '"';
+    }
+}
+
+function _makeItemCreation(type, data) {
+    const lines = [];
+    for (let key of Object.keys(data)) {
+        if (!data[key]) {
+            continue;
+        }
+        let text = key[0].toUpperCase() + key.substr(1).toLowerCase();
+        if (Array.isArray(data[key])) {
+            if (data[key].length) {
+                lines.push(`${text}: ${data[key].join(', ')}`);
+            }
+        } else {
+            lines.push(`${text}: ${data[key]}`);
+        }
+    }
+    return lines.join('<br/>');
+}
+
+function _makeItemModification(type, data) {
+    const lines = [];
+    const diff = data.value;
+    if (type === 'tag_category') {
+        if (diff.name) {
+            _extend(lines, _formatBasicChange(diff.name, 'name'));
+        }
+        if (diff.color) {
+            _extend(lines, _formatBasicChange(diff.color, 'color'));
+        }
+        if (diff.default) {
+            _extend(lines, ['Made into default category']);
+        }
+
+    } else if (type === 'tag') {
+        if (diff.names) {
+            _extend(lines, _formatBasicChange(diff.names, 'names'));
+        }
+        if (diff.category) {
+            _extend(
+                lines, _formatBasicChange(diff.category, 'category'));
+        }
+        if (diff.suggestions) {
+            _extend(
+                lines, _formatBasicChange(diff.suggestions, 'suggestions'));
+        }
+        if (diff.implications) {
+            _extend(
+                lines, _formatBasicChange(diff.implications, 'implications'));
+        }
+
+    } else if (type === 'post') {
+        if (diff.checksum) {
+            _extend(lines, ['Changed content']);
+        }
+        if (diff.featured) {
+            _extend(lines, ['Featured on front page']);
+        }
+        if (diff.source) {
+            _extend(lines, _formatBasicChange(diff.source, 'source'));
+        }
+        if (diff.safety) {
+            _extend(lines, _formatBasicChange(diff.safety, 'safety'));
+        }
+        if (diff.tags) {
+            _extend(lines, _formatBasicChange(diff.tags, 'tags'));
+        }
+        if (diff.relations) {
+            _extend(lines, _formatBasicChange(diff.relations, 'relations'));
+        }
+        if (diff.notes) {
+            _extend(lines, ['Changed notes']);
+        }
+        if (diff.flags) {
+            _extend(lines, ['Changed flags']);
+        }
+    }
+
+    return lines.join('<br/>');
+}
+
+class SnapshotsPageView {
+    constructor(ctx) {
+        views.replaceContent(ctx.hostNode, template(Object.assign({
+            makeResourceLink: _makeResourceLink,
+            makeItemCreation: _makeItemCreation,
+            makeItemModification: _makeItemModification,
+        }, ctx)));
+    }
+}
+
+module.exports = SnapshotsPageView;