PRAGMA foreign_keys = OFF;

-- Drop the tables if they exist
DROP TABLE IF EXISTS Reservations;
DROP TABLE IF EXISTS Shows;
DROP TABLE IF EXISTS Movies;
DROP TABLE IF EXISTS Theaters;
DROP TABLE IF EXISTS Users;

PRAGMA foreign_keys = ON;

-- Create the Users table
CREATE TABLE
    IF NOT EXISTS Users (
        username VARCHAR(50) PRIMARY KEY,
        name VARCHAR(100) NOT NULL,
        address VARCHAR(200),
        telephone VARCHAR(20) NOT NULL
    );

-- Create the Theaters table
CREATE TABLE
    IF NOT EXISTS Theaters (
        theater_id INTEGER PRIMARY KEY,
        name VARCHAR(100) NOT NULL,
        seats INTEGER NOT NULL
    );

-- Create the Movies table
CREATE TABLE
    IF NOT EXISTS Movies (
        movie_id INTEGER PRIMARY KEY,
        name VARCHAR(100) NOT NULL
    );

-- Create the Shows table
CREATE TABLE
    IF NOT EXISTS Shows (
        show_id INTEGER PRIMARY KEY,
        movie_id INTEGER NOT NULL,
        theater_id INTEGER NOT NULL,
        show_date DATE NOT NULL,
        FOREIGN KEY (movie_id) REFERENCES Movies (movie_id),
        FOREIGN KEY (theater_id) REFERENCES Theaters (theater_id)
    );

-- Create the Reservations table
CREATE TABLE
    IF NOT EXISTS Reservations (
        reservation_id INTEGER PRIMARY KEY,
        username VARCHAR(50) NOT NULL,
        show_id INTEGER NOT NULL,
        reservation_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
        FOREIGN KEY (username) REFERENCES Users (username),
        FOREIGN KEY (show_id) REFERENCES Shows (show_id)
    );

-- Index for Users table
CREATE INDEX IF NOT EXISTS idx_users_username ON Users (username);

-- Index for Shows table
CREATE INDEX IF NOT EXISTS idx_shows_movie_id ON Shows (movie_id);
CREATE INDEX IF NOT EXISTS idx_shows_theater_id ON Shows (theater_id);

-- Index for Reservations table
CREATE INDEX IF NOT EXISTS idx_reservations_username ON Reservations (username);
CREATE INDEX IF NOT EXISTS idx_reservations_show_id ON Reservations (show_id);