-- Initialize the NextGen PPR database
-- This script creates the tables based on the existing schema but with improvements

-- Enable foreign key checks
SET FOREIGN_KEY_CHECKS = 1;

-- Users table with improved structure
CREATE TABLE users (
    id INT AUTO_INCREMENT PRIMARY KEY,
    username VARCHAR(50) NOT NULL UNIQUE,
    password VARCHAR(255) NOT NULL,
    role ENUM('ADMINISTRATOR','OPERATOR','READ_ONLY') NOT NULL DEFAULT 'READ_ONLY',
    email VARCHAR(128),
    full_name VARCHAR(100),
    is_active BOOLEAN DEFAULT TRUE,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    INDEX idx_username (username),
    INDEX idx_email (email)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- Main PPR submissions table with improvements
CREATE TABLE submitted (
    id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    status ENUM('NEW','CONFIRMED','CANCELED','LANDED','DELETED','DEPARTED') NOT NULL DEFAULT 'NEW',
    ac_reg VARCHAR(16) NOT NULL,
    ac_type VARCHAR(32) NOT NULL,
    ac_call VARCHAR(16) DEFAULT NULL,
    captain VARCHAR(64) NOT NULL,
    fuel VARCHAR(16) DEFAULT NULL,
    in_from VARCHAR(64) NOT NULL,
    eta DATETIME NOT NULL,
    pob_in INT NOT NULL,
    out_to VARCHAR(64) DEFAULT NULL,
    etd DATETIME DEFAULT NULL,
    pob_out INT DEFAULT NULL,
    email VARCHAR(128) DEFAULT NULL,
    phone VARCHAR(16) DEFAULT NULL,
    notes TEXT DEFAULT NULL,
    landed_dt DATETIME DEFAULT NULL,
    departed_dt DATETIME DEFAULT NULL,
    created_by VARCHAR(16) DEFAULT NULL,
    submitted_dt TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    
    -- Indexes for better performance
    INDEX idx_status (status),
    INDEX idx_eta (eta),
    INDEX idx_etd (etd),
    INDEX idx_ac_reg (ac_reg),
    INDEX idx_submitted_dt (submitted_dt),
    INDEX idx_created_by (created_by)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- Activity journal table with foreign key
CREATE TABLE journal (
    id BIGINT AUTO_INCREMENT PRIMARY KEY,
    ppr_id BIGINT UNSIGNED NOT NULL,
    entry TEXT NOT NULL,
    user VARCHAR(50) NOT NULL,
    ip VARCHAR(45) NOT NULL,  -- IPv6 compatible
    entry_dt TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    
    INDEX idx_ppr_id (ppr_id),
    INDEX idx_entry_dt (entry_dt),
    INDEX idx_user (user),
    
    FOREIGN KEY (ppr_id) REFERENCES submitted(id) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- Airports reference table with proper structure
CREATE TABLE airports (
    id INT AUTO_INCREMENT PRIMARY KEY,
    icao VARCHAR(4) NOT NULL,
    iata VARCHAR(3) DEFAULT NULL,
    name VARCHAR(255) NOT NULL,
    country VARCHAR(100) NOT NULL,
    city VARCHAR(100) DEFAULT NULL,
    timezone VARCHAR(50) DEFAULT NULL,
    latitude DECIMAL(10, 8) DEFAULT NULL,
    longitude DECIMAL(11, 8) DEFAULT NULL,
    elevation INT DEFAULT NULL,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    
    UNIQUE KEY unique_icao (icao),
    INDEX idx_iata (iata),
    INDEX idx_country (country),
    INDEX idx_name (name)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- Aircraft reference table with improved structure
CREATE TABLE aircraft (
    id INT AUTO_INCREMENT PRIMARY KEY,
    icao24 VARCHAR(6) DEFAULT NULL,
    registration VARCHAR(25) DEFAULT NULL,
    manufacturer_icao VARCHAR(50) DEFAULT NULL,
    type_code VARCHAR(30) DEFAULT NULL,
    manufacturer_name VARCHAR(255) DEFAULT NULL,
    model VARCHAR(255) DEFAULT NULL,
    clean_reg VARCHAR(25) GENERATED ALWAYS AS (UPPER(REPLACE(REPLACE(registration, '-', ''), ' ', ''))) STORED,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    
    INDEX idx_registration (registration),
    INDEX idx_clean_reg (clean_reg),
    INDEX idx_icao24 (icao24),
    INDEX idx_type_code (type_code)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- Insert default admin user (password: admin123)
-- Password hash for 'admin123' using bcrypt
INSERT INTO users (username, password, role, email, full_name) VALUES 
('admin', '$2b$12$BJOha2yRxkxuHL./BaMfpu2fMDgGMYISuRV2.B1sSklVpRjz3Y4a6', 'ADMINISTRATOR', 'admin@ppr.local', 'System Administrator');

-- Create a view for active PPRs
CREATE VIEW active_pprs AS
SELECT 
    s.*,
    af.name as arrival_airport_name,
    df.name as departure_airport_name,
    ac.manufacturer_name,
    ac.model
FROM submitted s
LEFT JOIN airports af ON s.in_from = af.icao OR s.in_from = af.iata
LEFT JOIN airports df ON s.out_to = df.icao OR s.out_to = df.iata
LEFT JOIN aircraft ac ON s.ac_reg = ac.registration
WHERE s.status != 'DELETED';

-- Create indexes for the view performance
-- ALTER TABLE submitted ADD INDEX idx_in_from (in_from);
-- ALTER TABLE submitted ADD INDEX idx_out_to (out_to);