-- =====================================================
-- SCHEMA: Onboarding Inteligente
-- Epica: MCH-006 - Onboarding Inteligente
-- Fecha: 2026-01-18
-- =====================================================

-- ENUM: Onboarding Status
DO $$ BEGIN
    CREATE TYPE onboarding_status AS ENUM (
        'started',
        'business_info',
        'giro_selected',
        'templates_loaded',
        'products_added',
        'completed',
        'abandoned'
    );
EXCEPTION
    WHEN duplicate_object THEN null;
END $$;

-- ENUM: Onboarding Channel
DO $$ BEGIN
    CREATE TYPE onboarding_channel AS ENUM (
        'whatsapp',
        'web',
        'app'
    );
EXCEPTION
    WHEN duplicate_object THEN null;
END $$;

-- ENUM: Scan Type
DO $$ BEGIN
    CREATE TYPE scan_type AS ENUM (
        'photo',
        'audio',
        'barcode'
    );
EXCEPTION
    WHEN duplicate_object THEN null;
END $$;

-- ENUM: Scan Status
DO $$ BEGIN
    CREATE TYPE scan_status AS ENUM (
        'pending',
        'processing',
        'detected',
        'confirmed',
        'rejected',
        'failed'
    );
EXCEPTION
    WHEN duplicate_object THEN null;
END $$;

-- TABLA: onboarding_sessions
CREATE TABLE IF NOT EXISTS auth.onboarding_sessions (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    tenant_id UUID REFERENCES auth.tenants(id) ON DELETE SET NULL,
    phone_number VARCHAR(20) NOT NULL,
    channel onboarding_channel DEFAULT 'whatsapp',
    status onboarding_status DEFAULT 'started',
    current_step INTEGER DEFAULT 1,
    total_steps INTEGER DEFAULT 5,

    -- Business info collected
    business_name VARCHAR(100),
    business_giro VARCHAR(50),
    owner_name VARCHAR(100),

    -- Progress tracking
    templates_imported INTEGER DEFAULT 0,
    products_added INTEGER DEFAULT 0,
    photos_processed INTEGER DEFAULT 0,
    audios_processed INTEGER DEFAULT 0,

    -- Metadata
    metadata JSONB,
    last_message_at TIMESTAMPTZ,
    completed_at TIMESTAMPTZ,
    started_at TIMESTAMPTZ DEFAULT NOW(),
    updated_at TIMESTAMPTZ DEFAULT NOW()
);

-- INDICES para onboarding_sessions
CREATE INDEX IF NOT EXISTS idx_onboarding_sessions_tenant_status
    ON auth.onboarding_sessions(tenant_id, status);
CREATE INDEX IF NOT EXISTS idx_onboarding_sessions_phone
    ON auth.onboarding_sessions(phone_number);
CREATE INDEX IF NOT EXISTS idx_onboarding_sessions_status
    ON auth.onboarding_sessions(status) WHERE status != 'completed';

-- TABLA: product_scans
CREATE TABLE IF NOT EXISTS catalog.product_scans (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    session_id UUID NOT NULL REFERENCES auth.onboarding_sessions(id) ON DELETE CASCADE,
    tenant_id UUID REFERENCES auth.tenants(id) ON DELETE SET NULL,
    type scan_type NOT NULL,
    status scan_status DEFAULT 'pending',

    -- Input data
    media_url TEXT,
    media_mime_type VARCHAR(50),
    raw_text TEXT,

    -- OCR/Transcription results
    detected_name VARCHAR(150),
    detected_price DECIMAL(10,2),
    detected_barcode VARCHAR(50),
    confidence_score DECIMAL(3,2),

    -- Matched template
    template_id UUID REFERENCES catalog.product_templates(id) ON DELETE SET NULL,
    template_match_score DECIMAL(3,2),

    -- Final product created
    product_id UUID REFERENCES catalog.products(id) ON DELETE SET NULL,

    -- User corrections
    user_confirmed_name VARCHAR(150),
    user_confirmed_price DECIMAL(10,2),

    -- Metadata
    metadata JSONB,
    error_message TEXT,
    processing_time_ms INTEGER,
    created_at TIMESTAMPTZ DEFAULT NOW()
);

-- INDICES para product_scans
CREATE INDEX IF NOT EXISTS idx_product_scans_session_status
    ON catalog.product_scans(session_id, status);
CREATE INDEX IF NOT EXISTS idx_product_scans_template
    ON catalog.product_scans(template_id) WHERE template_id IS NOT NULL;

-- TRIGGER: Actualizar updated_at en onboarding_sessions
CREATE OR REPLACE FUNCTION update_onboarding_sessions_updated_at()
RETURNS TRIGGER AS $$
BEGIN
    NEW.updated_at = NOW();
    RETURN NEW;
END;
$$ LANGUAGE plpgsql;

DROP TRIGGER IF EXISTS trg_onboarding_sessions_updated_at ON auth.onboarding_sessions;
CREATE TRIGGER trg_onboarding_sessions_updated_at
    BEFORE UPDATE ON auth.onboarding_sessions
    FOR EACH ROW
    EXECUTE FUNCTION update_onboarding_sessions_updated_at();

-- =====================================================
-- FIN DEL SCHEMA
-- =====================================================