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-- ============================================================
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-- schema.sql — Database tables for the AI-Solutions website
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-- ============================================================
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-- Database: ai_solutions (or reuse the existing auth_db).
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-- Apply with:
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-- psql -U postgres -d auth_db -f database/schema.sql
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-- Then seed sample data + admin with:
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-- node backend/seed.js
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-- ============================================================
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-- ============================================================
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-- AUTH / ADMIN TABLES
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-- ============================================================
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-- There are NO public user accounts. The only accounts are
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-- administrators, created by the seed script (not self-service
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-- registration). RBAC is therefore unnecessary — every row is
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-- an admin — but the role column is kept for defense-in-depth.
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-- ============================================================
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-- Admin accounts
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CREATE TABLE IF NOT EXISTS users (
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id SERIAL PRIMARY KEY,
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username VARCHAR(30) UNIQUE NOT NULL,
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email VARCHAR(255) UNIQUE NOT NULL,
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password_hash TEXT NOT NULL,
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role VARCHAR(10) DEFAULT 'admin' CHECK (role IN ('admin')),
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failed_attempts INTEGER DEFAULT 0,
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locked_until TIMESTAMP,
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email_verified BOOLEAN DEFAULT true, -- admins are pre-verified by the seed script
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password_changed_at TIMESTAMP DEFAULT NOW(), -- tracks when password was last changed (expires after 90 days)
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otp_code TEXT, -- stores bcrypt hash of the login OTP
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otp_expires_at TIMESTAMP,
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otp_attempts INTEGER DEFAULT 0, -- tracks wrong OTP guesses (max 3)
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created_at TIMESTAMP DEFAULT NOW()
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);
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-- Password history — prevents reuse of the last 5 passwords
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CREATE TABLE IF NOT EXISTS password_history (
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id SERIAL PRIMARY KEY,
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user_id INTEGER REFERENCES users(id) ON DELETE CASCADE,
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password_hash TEXT NOT NULL,
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created_at TIMESTAMP DEFAULT NOW()
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);
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-- Sessions — tracks every logged-in admin device
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CREATE TABLE IF NOT EXISTS sessions (
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id SERIAL PRIMARY KEY,
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user_id INTEGER REFERENCES users(id) ON DELETE CASCADE,
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jti VARCHAR(64) NOT NULL, -- JWT ID for access token
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refresh_jti VARCHAR(64), -- JWT ID for refresh token
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ip_address VARCHAR(45),
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device_info TEXT,
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created_at TIMESTAMP DEFAULT NOW(),
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last_used_at TIMESTAMP DEFAULT NOW()
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);
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-- Activity logs — full audit trail
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CREATE TABLE IF NOT EXISTS logs (
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id SERIAL PRIMARY KEY,
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user_id INTEGER REFERENCES users(id) ON DELETE SET NULL,
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action VARCHAR(50) NOT NULL,
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status VARCHAR(10) NOT NULL CHECK (status IN ('success', 'failed', 'warning')),
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details TEXT,
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ip_address VARCHAR(45),
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created_at TIMESTAMP DEFAULT NOW()
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);
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-- ============================================================
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-- PUBLIC WEBSITE CONTENT TABLES
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-- ============================================================
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-- Customer inquiries — submitted via the public "Contact Us" form.
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-- Captures the 7 CSE fields. No account/password is required to submit.
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CREATE TABLE IF NOT EXISTS inquiries (
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id SERIAL PRIMARY KEY,
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full_name VARCHAR(120) NOT NULL,
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email VARCHAR(255) NOT NULL,
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phone VARCHAR(40),
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company VARCHAR(160),
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country VARCHAR(80),
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job_title VARCHAR(120),
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job_details TEXT NOT NULL,
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is_read BOOLEAN DEFAULT false,
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created_at TIMESTAMP DEFAULT NOW()
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);
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-- Software solutions / services offered to customers
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CREATE TABLE IF NOT EXISTS solutions (
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id SERIAL PRIMARY KEY,
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title VARCHAR(160) NOT NULL,
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summary VARCHAR(300) NOT NULL,
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description TEXT,
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icon VARCHAR(40) DEFAULT 'robot', -- icon key used by the frontend
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sort_order INTEGER DEFAULT 0,
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is_active BOOLEAN DEFAULT true,
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created_at TIMESTAMP DEFAULT NOW()
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);
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-- Case studies — "highlights of past industry solutions"
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CREATE TABLE IF NOT EXISTS case_studies (
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id SERIAL PRIMARY KEY,
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title VARCHAR(180) NOT NULL,
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client VARCHAR(160),
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industry VARCHAR(120),
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summary VARCHAR(400) NOT NULL,
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outcome TEXT,
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image_url TEXT,
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created_at TIMESTAMP DEFAULT NOW()
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);
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-- Customer feedback with star ratings
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CREATE TABLE IF NOT EXISTS feedback (
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id SERIAL PRIMARY KEY,
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customer_name VARCHAR(120) NOT NULL,
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company VARCHAR(160),
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rating INTEGER NOT NULL CHECK (rating BETWEEN 1 AND 5),
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comment TEXT NOT NULL,
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is_published BOOLEAN DEFAULT true,
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created_at TIMESTAMP DEFAULT NOW()
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);
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-- Promotional articles
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CREATE TABLE IF NOT EXISTS articles (
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id SERIAL PRIMARY KEY,
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slug VARCHAR(180) UNIQUE NOT NULL,
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title VARCHAR(200) NOT NULL,
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excerpt VARCHAR(400),
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body TEXT NOT NULL,
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cover_image TEXT,
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author VARCHAR(120) DEFAULT 'AI-Solutions Team',
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is_published BOOLEAN DEFAULT true,
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published_at TIMESTAMP DEFAULT NOW(),
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created_at TIMESTAMP DEFAULT NOW()
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);
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-- Promotional + upcoming events
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CREATE TABLE IF NOT EXISTS events (
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id SERIAL PRIMARY KEY,
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title VARCHAR(200) NOT NULL,
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description TEXT,
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location VARCHAR(180),
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event_date DATE,
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is_upcoming BOOLEAN DEFAULT false,
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cover_image TEXT,
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created_at TIMESTAMP DEFAULT NOW()
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);
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-- Photo gallery — images optionally tied to an event
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CREATE TABLE IF NOT EXISTS gallery_images (
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id SERIAL PRIMARY KEY,
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event_id INTEGER REFERENCES events(id) ON DELETE SET NULL,
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image_url TEXT NOT NULL,
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caption VARCHAR(200),
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created_at TIMESTAMP DEFAULT NOW()
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);
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-- ============================================================
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-- INDEXES
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-- ============================================================
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CREATE INDEX IF NOT EXISTS idx_sessions_user_id ON sessions(user_id);
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CREATE INDEX IF NOT EXISTS idx_sessions_jti ON sessions(jti);
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CREATE INDEX IF NOT EXISTS idx_sessions_refresh_jti ON sessions(refresh_jti);
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CREATE INDEX IF NOT EXISTS idx_logs_created_at ON logs(created_at DESC);
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CREATE INDEX IF NOT EXISTS idx_logs_user_id ON logs(user_id);
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CREATE INDEX IF NOT EXISTS idx_logs_action ON logs(action);
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CREATE INDEX IF NOT EXISTS idx_password_history_user ON password_history(user_id);
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CREATE INDEX IF NOT EXISTS idx_inquiries_created_at ON inquiries(created_at DESC);
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CREATE INDEX IF NOT EXISTS idx_solutions_active ON solutions(is_active, sort_order);
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CREATE INDEX IF NOT EXISTS idx_feedback_published ON feedback(is_published);
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CREATE INDEX IF NOT EXISTS idx_articles_slug ON articles(slug);
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CREATE INDEX IF NOT EXISTS idx_articles_published ON articles(is_published, published_at DESC);
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CREATE INDEX IF NOT EXISTS idx_events_date ON events(event_date DESC);
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CREATE INDEX IF NOT EXISTS idx_gallery_event ON gallery_images(event_id);
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