From 3760b493595945674acd6903e2f5aac91962ea7a Mon Sep 17 00:00:00 2001
From: flashwave <me@flash.moe>
Date: Thu, 26 Jul 2018 20:24:16 +0200
Subject: [PATCH] a

---
 ...07_25_194106_add_global_comments_stuff.php | 56 +++++++++++++++
 src/comments.php                              | 70 +++++++++++++++++++
 src/manage.php                                | 10 +++
 3 files changed, 136 insertions(+)
 create mode 100644 database/2018_07_25_194106_add_global_comments_stuff.php

diff --git a/database/2018_07_25_194106_add_global_comments_stuff.php b/database/2018_07_25_194106_add_global_comments_stuff.php
new file mode 100644
index 00000000..07be5214
--- /dev/null
+++ b/database/2018_07_25_194106_add_global_comments_stuff.php
@@ -0,0 +1,56 @@
+<?php
+namespace Misuzu\DatabaseMigrations\AddGlobalCommentsStuff;
+
+use PDO;
+
+function migrate_up(PDO $conn): void
+{
+    $conn->exec('
+        CREATE TABLE `msz_comments_categories` (
+            `category_id`       INT(10) UNSIGNED    NOT NULL    AUTO_INCREMENT,
+            `category_name`     VARCHAR(255)        NOT NULL,
+            `category_created`  TIMESTAMP           NOT NULL    DEFAULT CURRENT_TIMESTAMP,
+            `category_locked`   TIMESTAMP           NULL        DEFAULT NULL,
+            PRIMARY KEY (`category_id`),
+            UNIQUE INDEX `comments_categories_name_unique` (`category_name`)
+        );
+    ');
+
+    $conn->exec('
+        CREATE TABLE `msz_comments_posts` (
+            `comment_id`        INT(10) UNSIGNED    NOT NULL    AUTO_INCREMENT,
+            `category_id`       INT(10) UNSIGNED    NOT NULL,
+            `user_id`           INT(10) UNSIGNED    NULL        DEFAULT NULL,
+            `comment_reply_to`  INT(10) UNSIGNED    NULL        DEFAULT NULL,
+            `comment_text`      TEXT                NOT NULL,
+            `comment_created`   TIMESTAMP           NOT NULL    DEFAULT CURRENT_TIMESTAMP,
+            `comment_edited`    TIMESTAMP           NULL        DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP,
+            `comment_deleted`   TIMESTAMP           NULL        DEFAULT NULL,
+            PRIMARY KEY (`comment_id`),
+            INDEX `comments_posts_category_foreign` (`category_id`),
+            INDEX `comments_posts_user_foreign` (`user_id`),
+            INDEX `comments_posts_reply_id` (`comment_reply_to`),
+            INDEX `comments_posts_dates` (
+                `comment_created`,
+                `comment_edited`,
+                `comment_deleted`
+            ),
+            CONSTRAINT `comments_posts_category_foreign`
+                FOREIGN KEY (`category_id`)
+                REFERENCES `msz_comments_categories` (`category_id`)
+                ON UPDATE CASCADE
+                ON DELETE CASCADE,
+            CONSTRAINT `comments_posts_user_foreign`
+                FOREIGN KEY (`user_id`)
+                REFERENCES `msz_users` (`user_id`)
+                ON UPDATE CASCADE
+                ON DELETE SET NULL
+        );
+    ');
+}
+
+function migrate_down(PDO $conn): void
+{
+    $conn->exec('DROP TABLE `msz_comments_posts`');
+    $conn->exec('DROP TABLE `msz_comments_categories`');
+}
diff --git a/src/comments.php b/src/comments.php
index b1ae2812..03f944c2 100644
--- a/src/comments.php
+++ b/src/comments.php
@@ -1,7 +1,77 @@
 <?php
+use Misuzu\Database;
+
 define('MSZ_COMMENTS_PERM_CREATE', 1);
 define('MSZ_COMMENTS_PERM_EDIT_OWN', 1 << 1);
 define('MSZ_COMMENTS_PERM_EDIT_ANY', 1 << 2);
 define('MSZ_COMMENTS_PERM_DELETE_OWN', 1 << 3);
 define('MSZ_COMMENTS_PERM_DELETE_ANY', 1 << 4);
 define('MSZ_COMMENTS_PERM_PIN', 1 << 5);
+define('MSZ_COMMENTS_PERM_LOCK', 1 << 6);
+
+function comments_category_create(string $name): int
+{
+    $create = Database::prepare('
+        INSERT INTO `msz_comments_categories`
+            (`category_name`)
+        VALUES
+            (:name)
+    ');
+    $create->bindValue('name', $name);
+    return $create->execute() ? Database::lastInsertId() : 0;
+}
+
+function comments_category_lock(int $category, bool $lock): void
+{
+    $lock = Database::prepare('
+        UPDATE `msz_comments_categories`
+        SET `category_locked` = IF(:lock, NOW(), NULL)
+        WHERE `category_id` = :category
+    ');
+    $lock->bindValue('category', $category);
+    $lock->bindValue('lock', $lock ? 1 : 0);
+    $lock->execute();
+}
+
+function comments_category_exists(string $name): bool
+{
+    $exists = Database::prepare('
+        SELECT COUNT(`category_name`) > 0
+        FROM `msz_comments_categories`
+        WHERE `category_name` = :name
+    ');
+    $exists->bindValue('name', $name);
+    return $exists->execute() ? (bool)$exists->fetchColumn() : false;
+}
+
+function comments_category_get(int $category): array
+{
+    $posts = Database::prepare('
+        SELECT
+            p.`comment_id`, p.`comment_text`,
+            u.`user_id`, u.`username`,
+            COALESCE(u.`user_colour`, r.`role_colour`) as `user_colour`
+        FROM `msz_comments_posts` as p
+        LEFT JOIN `msz_users` as u
+        ON u.`user_id` = p.`user_id`
+        LEFT JOIN `msz_roles` as r
+        ON r.`role_id` = u.`display_role`
+        WHERE c.`category_id` = :category
+    ');
+    $posts->bindValue('category', $category);
+    return $posts->execute() ? $posts->fetchAll(PDO::FETCH_ASSOC) : [];
+}
+
+function comments_post_create(int $user, int $category, string $text): int
+{
+    $create = Database::prepare('
+        INSERT INTO `msz_comments_posts`
+            (`user_id`, `category_id`, `comment_text`)
+        VALUES
+            (:user, :category, :text)
+    ');
+    $create->bindValue('user', $user);
+    $create->bindValue('category', $category);
+    $create->bindValue('text', $text);
+    return $create->execute() ? Database::lastInsertId() : 0;
+}
diff --git a/src/manage.php b/src/manage.php
index 43193790..bc37d58c 100644
--- a/src/manage.php
+++ b/src/manage.php
@@ -430,6 +430,16 @@ function manage_perms_list(array $rawPerms): array
                         $rawPerms['comments_perms_deny']
                     ),
                 ],
+                [
+                    'section' => 'lock',
+                    'title' => 'Can lock comment threads.',
+                    'perm' => MSZ_COMMENTS_PERM_LOCK,
+                    'value' => manage_perms_value(
+                        MSZ_COMMENTS_PERM_LOCK,
+                        $rawPerms['comments_perms_allow'],
+                        $rawPerms['comments_perms_deny']
+                    ),
+                ],
             ],
         ],
         [