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;

services/cms-service/src/handlers.rs

@@ -261,11 +261,23 @@ pub async fn create_course(
         org_ctx.id
     };
 
-    let course = sqlx::query_as::<_, Course>("SELECT * FROM fn_create_course($1, $2, $3, $4)")
+    let price = payload
+        .get("price")
+        .and_then(|v| v.as_f64())
+        .unwrap_or(0.0);
+    
+    let currency = payload
+        .get("currency")
+        .and_then(|v| v.as_str())
+        .unwrap_or("USD");
+
+    let course = sqlx::query_as::<_, Course>("SELECT * FROM fn_create_course($1, $2, $3, $4, $5, $6)")
         .bind(target_org_id)
         .bind(instructor_id)
         .bind(title)
         .bind(pacing_mode)
+        .bind(price)
+        .bind(currency)
         .fetch_one(&mut *tx)
         .await
         .map_err(|e| {
@@ -358,6 +370,17 @@ pub async fn update_course(
         .and_then(|s| s.parse::<DateTime<Utc>>().ok())
         .or(existing.end_date);
 
+    let price = payload
+        .get("price")
+        .and_then(|v| v.as_f64())
+        .unwrap_or(existing.price);
+
+    let currency = payload
+        .get("currency")
+        .and_then(|v| v.as_str())
+        .map(|s| s.to_string())
+        .unwrap_or(existing.currency);
+
     // BEGIN TRANSACTION
     let mut tx = pool
         .begin()
@@ -375,7 +398,7 @@ pub async fn update_course(
     .map_err(|e| (StatusCode::INTERNAL_SERVER_ERROR, e.to_string()))?;
 
     let course = sqlx::query_as::<_, Course>(
-        "SELECT * FROM fn_update_course($1, $2, $3, $4, $5, $6, $7, $8, $9)",
+        "SELECT * FROM fn_update_course($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11)",
     )
     .bind(id)
     .bind(org_ctx.id)
@@ -386,6 +409,8 @@ pub async fn update_course(
     .bind(start_date)
     .bind(end_date)
     .bind(certificate_template)
+    .bind(price)
+    .bind(currency)
     .fetch_one(&mut *tx)
     .await
     .map_err(|e| {