-- Initial Schema for Repairs Multi-tenant App
CREATE TABLE IF NOT EXISTS companies (
    id INT AUTO_INCREMENT PRIMARY KEY,
    name VARCHAR(255) NOT NULL,
    uprn_required BOOLEAN DEFAULT FALSE,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS users (
    id INT AUTO_INCREMENT PRIMARY KEY,
    company_id INT NOT NULL,
    name VARCHAR(255) NOT NULL,
    email VARCHAR(255) UNIQUE NOT NULL,
    role ENUM('admin', 'standard') DEFAULT 'standard',
    FOREIGN KEY (company_id) REFERENCES companies(id)
);

CREATE TABLE IF NOT EXISTS clients (
    id INT AUTO_INCREMENT PRIMARY KEY,
    company_id INT NOT NULL,
    name VARCHAR(255) NOT NULL,
    is_active BOOLEAN DEFAULT TRUE,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    FOREIGN KEY (company_id) REFERENCES companies(id)
);

CREATE TABLE IF NOT EXISTS job_statuses (
    id INT AUTO_INCREMENT PRIMARY KEY,
    company_id INT NOT NULL,
    name VARCHAR(255) NOT NULL,
    is_default BOOLEAN DEFAULT FALSE,
    FOREIGN KEY (company_id) REFERENCES companies(id)
);

CREATE TABLE IF NOT EXISTS jobs (
    id INT AUTO_INCREMENT PRIMARY KEY,
    company_id INT NOT NULL,
    job_ref VARCHAR(100) NOT NULL,
    uprn VARCHAR(100),
    address_1 VARCHAR(255),
    address_2 VARCHAR(255),
    address_3 VARCHAR(255),
    postcode VARCHAR(20),
    description TEXT,
    status_id INT,
    client_id INT,
    works_approved BOOLEAN DEFAULT FALSE,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    UNIQUE(company_id, job_ref),
    FOREIGN KEY (company_id) REFERENCES companies(id),
    FOREIGN KEY (status_id) REFERENCES job_statuses(id),
    FOREIGN KEY (client_id) REFERENCES clients(id)
);

CREATE TABLE IF NOT EXISTS activity_logs (
    id INT AUTO_INCREMENT PRIMARY KEY,
    job_id INT NOT NULL,
    company_id INT NOT NULL,
    user_id INT NOT NULL,
    user_name VARCHAR(255),
    event_type VARCHAR(100),
    field_name VARCHAR(100),
    old_value TEXT,
    new_value TEXT,
    metadata JSON,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    FOREIGN KEY (job_id) REFERENCES jobs(id),
    FOREIGN KEY (company_id) REFERENCES companies(id)
);

-- Seed Initial Demo Company
INSERT INTO companies (name) VALUES ('Repairs Pro Ltd');
SET @company_id = LAST_INSERT_ID();

INSERT INTO users (company_id, name, email, role) VALUES (@company_id, 'Admin User', 'admin@repairspro.com', 'admin');
INSERT INTO job_statuses (company_id, name, is_default) VALUES (@company_id, 'To Be Surveyed', 1), (@company_id, 'Booking Required', 0), (@company_id, 'Completed', 0);
INSERT INTO clients (company_id, name) VALUES (@company_id, 'Main Housing Assoc');