Doc update and SQL init

db-init/02-import-data.sql

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+-- Import airports data from CSV
+LOAD DATA INFILE '/var/lib/mysql-files/airports_data.csv' 
+INTO TABLE airports 
+FIELDS TERMINATED BY ',' 
+OPTIONALLY ENCLOSED BY '"'
+LINES TERMINATED BY '\n'
+(icao, iata, name, country);
+
+-- Import aircraft data from CSV  
+LOAD DATA INFILE '/var/lib/mysql-files/aircraft_data.csv'
+INTO TABLE aircraft
+FIELDS TERMINATED BY ','
+OPTIONALLY ENCLOSED BY '"'
+LINES TERMINATED BY '\n'
+(icao24, registration, manufacturer_icao, type_code, manufacturer_name, model);

db-init/Dockerfile

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+FROM mysql:8.0
+
+# Copy initialization SQL files
+COPY init_db.sql /docker-entrypoint-initdb.d/01-schema.sql
+COPY 02-import-data.sql /docker-entrypoint-initdb.d/02-import-data.sql
+
+# Copy CSV files for import
+COPY airports_data_clean.csv /var/lib/mysql-files/airports_data.csv
+COPY aircraft_data.csv /var/lib/mysql-files/aircraft_data.csv

db-init/init_db.sql

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+-- 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,
+    public_token VARCHAR(128) DEFAULT NULL UNIQUE,
+    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),
+    INDEX idx_public_token (public_token)
+) 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);