feat: Implement core monetization features including course pricing, payment preference creation, and transaction management with Mercado Pago integration.

services/cms-service/migrations/20260215000000_monetization.sql

@@ -0,0 +1,64 @@
+-- Add price and currency to courses table
+ALTER TABLE courses ADD COLUMN price NUMERIC(10, 2) DEFAULT 0.00;
+ALTER TABLE courses ADD COLUMN currency VARCHAR(10) DEFAULT 'USD';
+
+-- Update fn_create_course to handle price and currency
+CREATE OR REPLACE FUNCTION fn_create_course(
+    p_organization_id UUID,
+    p_instructor_id UUID,
+    p_title TEXT,
+    p_pacing_mode TEXT DEFAULT 'self_paced',
+    p_price NUMERIC(10, 2) DEFAULT 0.00,
+    p_currency TEXT DEFAULT 'USD'
+) RETURNS SETOF courses AS $$
+BEGIN
+    RETURN QUERY
+    INSERT INTO courses (
+        organization_id,
+        instructor_id,
+        title,
+        pacing_mode,
+        price,
+        currency
+    ) VALUES (
+        p_organization_id,
+        p_instructor_id,
+        p_title,
+        p_pacing_mode,
+        p_price,
+        p_currency
+    ) RETURNING *;
+END;
+$$ LANGUAGE plpgsql;
+
+-- Update fn_update_course to handle price and currency
+CREATE OR REPLACE FUNCTION fn_update_course(
+    p_id UUID,
+    p_organization_id UUID,
+    p_title TEXT,
+    p_description TEXT,
+    p_passing_percentage INTEGER,
+    p_pacing_mode TEXT,
+    p_start_date TIMESTAMP WITH TIME ZONE,
+    p_end_date TIMESTAMP WITH TIME ZONE,
+    p_certificate_template TEXT,
+    p_price NUMERIC(10, 2),
+    p_currency TEXT
+) RETURNS SETOF courses AS $$
+BEGIN
+    RETURN QUERY
+    UPDATE courses SET
+        title = p_title,
+        description = p_description,
+        passing_percentage = p_passing_percentage,
+        pacing_mode = p_pacing_mode,
+        start_date = p_start_date,
+        end_date = p_end_date,
+        certificate_template = p_certificate_template,
+        price = p_price,
+        currency = p_currency,
+        updated_at = NOW()
+    WHERE id = p_id AND organization_id = p_organization_id
+    RETURNING *;
+END;
+$$ LANGUAGE plpgsql;