-- v2.9 Logistics & Shipment Tracking

-- Couriers / carriers
CREATE TABLE IF NOT EXISTS couriers (
    id SERIAL PRIMARY KEY,
    tenant_id INTEGER NOT NULL,
    name VARCHAR(100) NOT NULL, -- 'DHL', 'FedEx', 'Estafeta', '99minutos', 'Uber Direct'
    code VARCHAR(20) NOT NULL, -- internal code
    tracking_url_template VARCHAR(500), -- e.g. "https://www.dhl.com/track?trackingNumber={tracking_number}"
    api_endpoint VARCHAR(500),
    api_key_encrypted TEXT,
    is_active BOOLEAN DEFAULT TRUE,
    created_at TIMESTAMPTZ DEFAULT NOW()
);
CREATE UNIQUE INDEX IF NOT EXISTS idx_couriers_code ON couriers(tenant_id, code);

-- Shipments
CREATE TABLE IF NOT EXISTS shipments (
    id SERIAL PRIMARY KEY,
    tenant_id INTEGER NOT NULL,
    branch_id INTEGER REFERENCES branches(id),
    shipment_type VARCHAR(20) DEFAULT 'outbound', -- outbound, inbound, return
    related_type VARCHAR(50), -- 'sale', 'purchase_order', 'service_order', 'marketplace_order'
    related_id INTEGER,
    courier_id INTEGER REFERENCES couriers(id),
    tracking_number VARCHAR(100),
    tracking_url VARCHAR(500),
    status VARCHAR(30) DEFAULT 'pending', -- pending, label_created, picked_up, in_transit, out_for_delivery, delivered, failed, returned
    origin_address TEXT,
    destination_address TEXT,
    recipient_name VARCHAR(200),
    recipient_phone VARCHAR(50),
    estimated_delivery DATE,
    actual_delivery TIMESTAMPTZ,
    shipping_cost NUMERIC(12,2) DEFAULT 0,
    weight_kg NUMERIC(8,3),
    dimensions_cm VARCHAR(50), -- "30x20x15"
    notes TEXT,
    created_by INTEGER REFERENCES employees(id),
    created_at TIMESTAMPTZ DEFAULT NOW(),
    updated_at TIMESTAMPTZ DEFAULT NOW()
);
CREATE INDEX IF NOT EXISTS idx_shipments_tracking ON shipments(tracking_number);
CREATE INDEX IF NOT EXISTS idx_shipments_status ON shipments(status);
CREATE INDEX IF NOT EXISTS idx_shipments_related ON shipments(related_type, related_id);

-- Shipment tracking history
CREATE TABLE IF NOT EXISTS shipment_tracking (
    id SERIAL PRIMARY KEY,
    shipment_id INTEGER NOT NULL REFERENCES shipments(id) ON DELETE CASCADE,
    status VARCHAR(30) NOT NULL,
    location VARCHAR(200),
    description TEXT,
    raw_response JSONB,
    tracked_at TIMESTAMPTZ DEFAULT NOW()
);
CREATE INDEX IF NOT EXISTS idx_shipment_tracking_shipment ON shipment_tracking(shipment_id, tracked_at DESC);

-- Trigger for updated_at
CREATE OR REPLACE FUNCTION update_shipment_updated_at()
RETURNS TRIGGER AS $$
BEGIN
    NEW.updated_at = NOW();
    RETURN NEW;
END;
$$ LANGUAGE plpgsql;

DROP TRIGGER IF EXISTS trg_shipments_updated_at ON shipments;
CREATE TRIGGER trg_shipments_updated_at
    BEFORE UPDATE ON shipments
    FOR EACH ROW
    EXECUTE FUNCTION update_shipment_updated_at();

-- Insert default couriers
INSERT INTO couriers (tenant_id, name, code, tracking_url_template, is_active) VALUES
(1, 'DHL Express', 'dhl', 'https://www.dhl.com/mx/es/home/tracking/tracking-ecommerce.html?tracking-id={tracking_number}', true),
(1, 'FedEx', 'fedex', 'https://www.fedex.com/apps/fedextrack/?tracknumbers={tracking_number}', true),
(1, 'Estafeta', 'estafeta', 'https://www.estafeta.com/herramientas/rastreo?guias={tracking_number}', true),
(1, '99 Minutos', '99minutos', 'https://99minutos.com/track/{tracking_number}', true),
(1, 'Uber Direct', 'uber_direct', NULL, true),
(1, 'Recolección en tienda', 'pickup', NULL, true)
ON CONFLICT DO NOTHING;