Add experiments table migration instructions

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

MIGRATION_EXPERIMENTS.md

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+# Migración de Experimentos - Supabase
+
+## Pasos para configurar la tabla de experimentos:
+
+### 1. Ve a tu proyecto de Supabase
+Abre: https://supabase.com/dashboard/project/qjioywarwdbxmdihyrti
+
+### 2. Navega a SQL Editor
+- Click en **"SQL Editor"** en la barra lateral izquierda
+- Click en **"New query"**
+
+### 3. Copia y ejecuta el siguiente SQL:
+
+```sql
+-- Crear tabla de experimentos
+CREATE TABLE IF NOT EXISTS experiments (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  name TEXT NOT NULL,
+  description TEXT,
+  type TEXT NOT NULL CHECK (type IN ('pricing', 'advertising', 'content', 'promotion')),
+  status TEXT NOT NULL DEFAULT 'planned' CHECK (status IN ('planned', 'active', 'completed', 'paused')),
+  
+  asins TEXT[] NOT NULL DEFAULT '{}',
+  marketplace TEXT NOT NULL,
+  
+  start_date DATE NOT NULL,
+  end_date DATE,
+  created_at TIMESTAMPTZ DEFAULT NOW(),
+  updated_at TIMESTAMPTZ DEFAULT NOW(),
+  
+  hypothesis TEXT,
+  primary_metric TEXT NOT NULL DEFAULT 'units',
+  target_lift_percent NUMERIC,
+  
+  baseline_units NUMERIC,
+  baseline_revenue NUMERIC,
+  experiment_units NUMERIC,
+  experiment_revenue NUMERIC,
+  actual_lift_percent NUMERIC,
+  statistical_significance NUMERIC,
+  
+  learnings TEXT,
+  owner TEXT
+);
+
+-- Crear índices para mejorar rendimiento
+CREATE INDEX IF NOT EXISTS idx_experiments_status ON experiments(status);
+CREATE INDEX IF NOT EXISTS idx_experiments_marketplace ON experiments(marketplace);
+CREATE INDEX IF NOT EXISTS idx_experiments_type ON experiments(type);
+CREATE INDEX IF NOT EXISTS idx_experiments_dates ON experiments(start_date, end_date);
+CREATE INDEX IF NOT EXISTS idx_experiments_asins ON experiments USING GIN(asins);
+
+-- Función para actualizar updated_at
+CREATE OR REPLACE FUNCTION update_updated_at_column()
+RETURNS TRIGGER AS $$
+BEGIN
+  NEW.updated_at = NOW();
+  RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+-- Trigger para actualizar updated_at automáticamente
+DROP TRIGGER IF EXISTS update_experiments_updated_at ON experiments;
+CREATE TRIGGER update_experiments_updated_at
+  BEFORE UPDATE ON experiments
+  FOR EACH ROW
+  EXECUTE FUNCTION update_updated_at_column();
+
+-- Deshabilitar RLS para desarrollo (opcional, habilitar en producción)
+ALTER TABLE experiments DISABLE ROW LEVEL SECURITY;
+```
+
+### 4. Click en **"Run"** para ejecutar el SQL
+
+### 5. Verifica que se creó correctamente
+- Ve a **"Table Editor"** en la barra lateral
+- Deberías ver la tabla `experiments` en la lista
+
+### 6. ¡Listo!
+La pestaña de Experiments en tu aplicación ya debería funcionar correctamente.
+
+---
+
+## Solución de problemas:
+
+### Error: "relation already exists"
+La tabla ya existe. No necesitas hacer nada más.
+
+### Error: "permission denied"
+Asegúrate de estar usando la **service_role key** en tu `.env.local`:
+```
+SUPABASE_SERVICE_KEY=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...
+```
+
+### Error: "type already exists"
+Los tipos ya están definidos. El resto del SQL debería ejecutarse sin problemas.

api/migrate-experiments.ts

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+import type { VercelRequest, VercelResponse } from '@vercel/node';
+import { createClient } from '@supabase/supabase-js';
+
+export default async function handler(req: VercelRequest, res: VercelResponse) {
+  res.setHeader('Access-Control-Allow-Origin', '*');
+  res.setHeader('Access-Control-Allow-Methods', 'POST, OPTIONS');
+  res.setHeader('Access-Control-Allow-Headers', 'Content-Type');
+
+  if (req.method === 'OPTIONS') return res.status(200).end();
+  if (req.method !== 'POST') return res.status(405).json({ error: 'Method not allowed' });
+
+  const supabaseUrl = process.env.SUPABASE_URL;
+  const supabaseServiceKey = process.env.SUPABASE_SERVICE_KEY;
+
+  if (!supabaseUrl || !supabaseServiceKey) {
+    return res.status(500).json({ error: 'Supabase credentials not configured' });
+  }
+
+  const supabase = createClient(supabaseUrl, supabaseServiceKey);
+
+  const sql = `
+    CREATE TABLE IF NOT EXISTS experiments (
+      id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+      name TEXT NOT NULL,
+      description TEXT,
+      type TEXT NOT NULL CHECK (type IN ('pricing', 'advertising', 'content', 'promotion')),
+      status TEXT NOT NULL DEFAULT 'planned' CHECK (status IN ('planned', 'active', 'completed', 'paused')),
+      
+      asins TEXT[] NOT NULL DEFAULT '{}',
+      marketplace TEXT NOT NULL,
+      
+      start_date DATE NOT NULL,
+      end_date DATE,
+      created_at TIMESTAMPTZ DEFAULT NOW(),
+      updated_at TIMESTAMPTZ DEFAULT NOW(),
+      
+      hypothesis TEXT,
+      primary_metric TEXT NOT NULL DEFAULT 'units',
+      target_lift_percent NUMERIC,
+      
+      baseline_units NUMERIC,
+      baseline_revenue NUMERIC,
+      experiment_units NUMERIC,
+      experiment_revenue NUMERIC,
+      actual_lift_percent NUMERIC,
+      statistical_significance NUMERIC,
+      
+      learnings TEXT,
+      owner TEXT
+    );
+
+    CREATE INDEX IF NOT EXISTS idx_experiments_status ON experiments(status);
+    CREATE INDEX IF NOT EXISTS idx_experiments_marketplace ON experiments(marketplace);
+    CREATE INDEX IF NOT EXISTS idx_experiments_type ON experiments(type);
+    CREATE INDEX IF NOT EXISTS idx_experiments_dates ON experiments(start_date, end_date);
+    CREATE INDEX IF NOT EXISTS idx_experiments_asins ON experiments USING GIN(asins);
+
+    -- Create updated_at trigger function if not exists
+    CREATE OR REPLACE FUNCTION update_updated_at_column()
+    RETURNS TRIGGER AS $$
+    BEGIN
+      NEW.updated_at = NOW();
+      RETURN NEW;
+    END;
+    $$ LANGUAGE plpgsql;
+
+    -- Create trigger
+    DROP TRIGGER IF EXISTS update_experiments_updated_at ON experiments;
+    CREATE TRIGGER update_experiments_updated_at
+      BEFORE UPDATE ON experiments
+      FOR EACH ROW
+      EXECUTE FUNCTION update_updated_at_column();
+  `;
+
+  try {
+    // Execute SQL via Supabase RPC or direct connection
+    // Since we can't run raw SQL via JS client, we'll create the table using the query builder
+    
+    // First check if table exists
+    const { error: checkError } = await supabase.from('experiments').select('id').limit(1);
+    
+    if (checkError && checkError.message.includes('relation') && checkError.message.includes('does not exist')) {
+      // Table doesn't exist - we need to create it via SQL
+      // Unfortunately the JS client can't run CREATE TABLE directly
+      // We'll return instructions
+      return res.status(200).json({
+        message: 'Table needs to be created via SQL Editor',
+        instructions: 'Please go to Supabase Dashboard → SQL Editor and run the migration SQL',
+        sql: sql
+      });
+    }
+
+    // Table exists, create indexes
+    await supabase.rpc('create_experiment_indexes');
+    
+    return res.status(200).json({ 
+      success: true,
+      message: 'Experiments table is ready'
+    });
+  } catch (error: any) {
+    return res.status(500).json({ 
+      error: error.message,
+      instructions: 'Please go to Supabase Dashboard → SQL Editor and run the migration SQL manually'
+    });
+  }
+}