-- Livestock Marketplace schema (PostgreSQL)
-- Generated from specs in README.md

CREATE EXTENSION IF NOT EXISTS "pgcrypto";

CREATE TABLE IF NOT EXISTS users (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    name VARCHAR(255) NOT NULL,
    phone VARCHAR(50) UNIQUE NOT NULL,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS species (
    id SERIAL PRIMARY KEY,
    name VARCHAR(100) UNIQUE NOT NULL,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS breeds (
    id SERIAL PRIMARY KEY,
    species_id INT NOT NULL REFERENCES species(id) ON DELETE RESTRICT,
    name VARCHAR(100) NOT NULL,
    description TEXT,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS locations (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    user_id UUID REFERENCES users(id) ON DELETE SET NULL,
    is_saved_address BOOLEAN NOT NULL DEFAULT FALSE,
    location_type VARCHAR(50),
    country VARCHAR(100),
    state VARCHAR(100),
    district VARCHAR(100),
    city_village VARCHAR(150),
    pincode VARCHAR(20),
    lat DECIMAL(10,7),
    lng DECIMAL(10,7),
    source_type VARCHAR(50) NOT NULL DEFAULT 'unknown',
    source_confidence VARCHAR(50) NOT NULL DEFAULT 'medium',
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS animals (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    species_id INT NOT NULL REFERENCES species(id) ON DELETE RESTRICT,
    breed_id INT REFERENCES breeds(id) ON DELETE SET NULL,
    sex VARCHAR(20) NOT NULL,
    age_months INT,
    weight_kg DECIMAL(10,2),
    color_markings VARCHAR(200),
    quantity INT NOT NULL DEFAULT 1,
    purpose VARCHAR(50) NOT NULL,
    health_status VARCHAR(50) NOT NULL,
    vaccinated BOOLEAN NOT NULL DEFAULT FALSE,
    dewormed BOOLEAN NOT NULL DEFAULT FALSE,
    previous_pregnancies_count INT,
    pregnancy_status VARCHAR(50),
    milk_yield_litre_per_day DECIMAL(10,2),
    ear_tag_no VARCHAR(100),
    description TEXT,
    suggested_care TEXT,
    location_id UUID REFERENCES locations(id) ON DELETE SET NULL,
    created_from VARCHAR(50) NOT NULL,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS listings (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    seller_id UUID NOT NULL REFERENCES users(id) ON DELETE RESTRICT,
    animal_id UUID NOT NULL UNIQUE REFERENCES animals(id) ON DELETE CASCADE,
    title VARCHAR(200) NOT NULL,
    price NUMERIC(12,2) NOT NULL,
    currency VARCHAR(10) NOT NULL,
    is_negotiable BOOLEAN NOT NULL DEFAULT TRUE,
    listing_type VARCHAR(50) NOT NULL,
    status VARCHAR(50) NOT NULL DEFAULT 'active',
    listing_score INT NOT NULL DEFAULT 0,
    views_count INT NOT NULL DEFAULT 0,
    bookmarks_count INT NOT NULL DEFAULT 0,
    enquiries_call_count INT NOT NULL DEFAULT 0,
    enquiries_whatsapp_count INT NOT NULL DEFAULT 0,
    clicks_count INT NOT NULL DEFAULT 0,
    listing_score_status VARCHAR(50) NOT NULL DEFAULT 'pending',
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS listing_media (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    listing_id UUID NOT NULL REFERENCES listings(id) ON DELETE CASCADE,
    media_url VARCHAR(500) NOT NULL,
    media_type VARCHAR(50) NOT NULL,
    is_primary BOOLEAN NOT NULL DEFAULT FALSE,
    sort_order INT NOT NULL DEFAULT 0,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS custom_requirements (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    user_id UUID NOT NULL REFERENCES users(id) ON DELETE RESTRICT,
    requirement_text TEXT NOT NULL,
    animal_id UUID REFERENCES animals(id) ON DELETE SET NULL,
    status VARCHAR(50) NOT NULL DEFAULT 'open',
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);