export interface EmailTemplate {
  id: string;
  name: string;
  description: string;
  subject: string;
  header: string;
  body: string;
  footer: string;
  variables: string[]; // List of placeholders found in the text
  updatedAt: string;
}

export type ViewState = 'dashboard' | 'editor';

export interface ToastMessage {
  id: string;
  type: 'success' | 'error' | 'info';
  text: string;
}

// Uniform schema for both Postgres and MySQL, showing the VARCHAR id needed for UUIDs
export const SQL_SCHEMA = `
-- Per MySQL
CREATE TABLE IF NOT EXISTS email_templates (
    id VARCHAR(255) PRIMARY KEY,
    template_key VARCHAR(255) UNIQUE NOT NULL,
    name VARCHAR(255) NOT NULL,
    description TEXT,
    subject VARCHAR(255),
    header_html MEDIUMTEXT,
    body_html MEDIUMTEXT,
    footer_html MEDIUMTEXT,
    full_html MEDIUMTEXT,
    required_variables JSON,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
);

-- Per PostgreSQL
-- CREATE TABLE IF NOT EXISTS email_templates (
--     id VARCHAR(255) PRIMARY KEY,
--     template_key VARCHAR(255) UNIQUE NOT NULL,
--     name VARCHAR(255) NOT NULL,
--     description TEXT,
--     subject VARCHAR(255),
--     header_html TEXT,
--     body_html TEXT,
--     footer_html TEXT,
--     full_html TEXT,
--     required_variables JSONB,
--     created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
--     updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
-- );
`;