schema.sql

-- schema.sql
PRAGMA foreign_keys = ON;

CREATE TABLE IF NOT EXISTS users (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    username TEXT UNIQUE NOT NULL,
    password_hash TEXT NOT NULL,
    role TEXT NOT NULL DEFAULT 'user'
);

CREATE TABLE IF NOT EXISTS board_messages (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    author_id INTEGER NOT NULL,
    timestamp TEXT NOT NULL,
    subject TEXT NOT NULL,
    body TEXT NOT NULL,
    parent_id INTEGER,
    FOREIGN KEY (author_id) REFERENCES users(id),
    FOREIGN KEY (parent_id) REFERENCES board_messages(id)
);

CREATE TABLE IF NOT EXISTS private_messages (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    from_id INTEGER NOT NULL,
    to_id INTEGER NOT NULL,
    timestamp TEXT NOT NULL,
    body TEXT NOT NULL,
    read_flag INTEGER NOT NULL DEFAULT 0,
    FOREIGN KEY (from_id) REFERENCES users(id),
    FOREIGN KEY (to_id) REFERENCES users(id)
);

CREATE TABLE IF NOT EXISTS files (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    uploader_id INTEGER NOT NULL,
    filename TEXT NOT NULL,
    description TEXT,
    visibility TEXT NOT NULL,
    FOREIGN KEY (uploader_id) REFERENCES users(id)
);