CREATE TABLE users (
id INTEGER PRIMARY KEY,
username VARCHAR(255) NOT NULL,
password VARCHAR(255) NOT NULL
);
CREATE UNIQUE INDEX users_username ON users(username);
CREATE TABLE user_nicks (
nick VARCHAR(255) NOT NULL PRIMARY KEY,
user INTEGER NOT NULL,
FOREIGN KEY(user) REFERENCES users(id)
);
CREATE TABLE channels (
id INTEGER PRIMARY KEY,
name VARCHAR(255) NOT NULL
);
CREATE UNIQUE INDEX channel_name ON channels(name);
CREATE TABLE channel_messages (
channel INT NOT NULL,
timestamp INT NOT NULL,
sender VARCHAR(255),
message VARCHAR(255),
FOREIGN KEY(channel) REFERENCES channels(id),
PRIMARY KEY(channel, timestamp)
);
CREATE TABLE channel_users (
channel INT NOT NULL,
user INT NOT NULL,
permissions INT NOT NULL DEFAULT 0,
in_channel BOOLEAN DEFAULT false,
last_seen_message_timestamp INT,
FOREIGN KEY(user) REFERENCES users(id),
FOREIGN KEY(channel) REFERENCES channels(id),
PRIMARY KEY(channel, user)
);