added init.sql

.idea/gradle.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>

.idea/misc.xml

@@ -1,6 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="FrameworkDetectionExcludesConfiguration">
+    <file type="web" url="file://$PROJECT_DIR$" />
+  </component>
   <component name="ProjectRootManager" version="2" languageLevel="JDK_23" default="true" project-jdk-name="23" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>

src/main/resources/init.sql

@@ -0,0 +1,102 @@
+CREATE TABLE IF NOT EXISTS users(
+                                    user_id VARCHAR(70) UNIQUE,
+    internal_uuid UUID PRIMARY KEY,
+    username VARCHAR(50) UNIQUE NOT NULL,
+    password TEXT NOT NULL,
+    profile_name VARCHAR(100),
+    bio TEXT,                               --(Bonus)
+    image_url TEXT,
+    status VARCHAR(20) DEFAULT 'offline',
+    last_seen TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+    );
+
+
+CREATE TABLE IF NOT EXISTS contacts (
+                                        user_id UUID REFERENCES users(internal_uuid) ON DELETE CASCADE,
+    contact_id UUID REFERENCES users(internal_uuid) ON DELETE CASCADE,
+    added_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    is_blocked BOOLEAN DEFAULT FALSE,
+    PRIMARY KEY (user_id, contact_id)
+    );
+
+
+CREATE TABLE IF NOT EXISTS messages (
+                                        message_id UUID PRIMARY KEY,
+                                        sender_id UUID REFERENCES users(internal_uuid) ON DELETE SET NULL,
+    receiver_type VARCHAR(20) NOT NULL CHECK (receiver_type IN ('private','group','channel')),
+    receiver_id UUID NOT NULL,
+    content TEXT,
+    message_type VARCHAR(20) DEFAULT 'TEXT' CHECK (message_type IN ('TEXT','IMAGE','FILE','VIDEO','AUDIO','STICKER','GIF')),
+    file_url TEXT,                                                --(Bouns)
+    send_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    status VARCHAR(20),                                      -- SEND,DELIVERED,READ
+    reply_to_id UUID REFERENCES messages(message_id) ON DELETE SET NULL,        --(Bouns)
+    is_edited BOOLEAN,                                           --(Bonus)
+    original_message_id UUID REFERENCES message_id,              --(Bonus)
+    forwarded_by UUID REFERENCES users(internal_uuid),              --(Bouns)
+    forwarded_from UUID REFERENCES users(internal_uuid)              --(Bouns)
+    );
+
+
+CREATE TABLE IF NOT EXISTS private_chat (
+                                            chat_id UUID PRIMARY KEY,
+                                            user1-id UUID REFERENCES users(internal_uuid) ON DELETE SET NULL,
+    user2_id UUID REFERENCES users(internal_uuid) ON DELETE SET NULL,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    CONSTRAINT unique_users UNIQUE (user1_id, user2_id)
+    );
+
+
+CREATE TABLE IF NOT EXISTS groups (
+                                      group_id VARCHAR(70) UNIQUE,
+    internal_uuid UUID,
+    group_name VARCHAR(100),
+    creator_id UUID REFERENCES users(internal_uuid),
+    image_url TEXT,
+    description TEXT,
+    PRIMARY KEY (group_id, internal_uuid)
+    );
+
+
+CREATE TABLE IF NOT EXISTS group_members (
+                                             group_id UUID REFERENCES groups(group_id),
+    user_id UUID REFERENCES users(internal_uuid),
+    joined_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    role VARCHAR(20) DEFAULT 'member',                  -- member/admin/owner
+    PRIMARY KEY (group_id, user_id)
+    );
+
+
+CREATE TABLE IF NOT EXISTS channels (
+                                        channel_id VARCHAR(70) UNIQUE,
+    internal_uuid UUID,
+    channel_name VARCHAR(100),
+    creator_id UUID REFERENCES users(internal_uuid),
+    image_url TEXT,
+    description TEXT,
+    PRIMARY KEY (channel_id, internal_uuid)
+    );
+
+
+CREATE TABLE IF NOT EXISTS channel_subscribers (
+                                                   channel_id UUID REFERENCES channels(channel_id),
+    user_id UUID REFERENCES users(internal_uuid),
+    subscribed_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    PRIMARY KEY (channel_id, user_id)
+    );
+
+
+--(Bouns)
+CREATE TABLE IF NOT EXISTS channel_admins (
+                                              channel_id UUID REFERENCES channels(channel_id),
+    user_id UUID REFERENCES users(internal_uuid),
+    added_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    added_by UUID REFERENCES users(internal_uuid),
+    role VARCHAR(20) DEFAULT 'admin',              --owner, admin
+    can_post BOOLEAN DEFAULT TRUE,
+    can_edit BOOLEAN DEFAULT FALSE,
+    can_delete_messages BOOLEAN DEFAULT FALSE,
+    can_delete_members BOOLEAN DEFAULT FALSE,
+    can_add_members BOOLEAN DEFAULT TRUE,
+    PRIMARY KEY (channel_id, user_id)
+    );