Fix: Migracao para corrigir FK de tipos de evento duplicados

backend/internal/db/migrations/015_merge_duplicate_events.up.sql

@@ -0,0 +1,56 @@
+DO $$
+DECLARE
+    r RECORD;
+    keep_id UUID;
+    dup_id UUID;
+BEGIN
+    -- Loop through duplicates: groups of (name, regiao) where generic lower(trim(nome)) matches
+    FOR r IN 
+        SELECT lower(trim(nome)) as norm_name, regiao 
+        FROM tipos_eventos 
+        GROUP BY lower(trim(nome)), regiao 
+        HAVING count(*) > 1
+    LOOP
+        RAISE NOTICE 'Processing duplicate group: % in %', r.norm_name, r.regiao;
+
+        -- Identify the "Keeper" (Capitalized preferred)
+        -- We order by nome ASC so 'Baile' < 'baile' (ASCII 66 < 98). 'Baile' comes first.
+        SELECT id INTO keep_id
+        FROM tipos_eventos
+        WHERE lower(trim(nome)) = r.norm_name AND regiao = r.regiao
+        ORDER BY nome ASC
+        LIMIT 1;
+
+        -- Process all others as duplicates to be merged
+        FOR dup_id IN
+            SELECT id FROM tipos_eventos
+            WHERE lower(trim(nome)) = r.norm_name AND regiao = r.regiao AND id != keep_id
+        LOOP
+            RAISE NOTICE '  Merging % -> %', dup_id, keep_id;
+
+            -- 1. Update Agenda
+            UPDATE agenda 
+            SET tipo_evento_id = keep_id 
+            WHERE tipo_evento_id = dup_id;
+
+            -- 2. Update Precos
+            -- Check if target price already exists to avoid unique constraint if any
+            UPDATE precos_tipos_eventos 
+            SET tipo_evento_id = keep_id 
+            WHERE tipo_evento_id = dup_id
+            AND NOT EXISTS (
+                SELECT 1 FROM precos_tipos_eventos p2 
+                WHERE p2.tipo_evento_id = keep_id 
+                AND p2.funcao_profissional_id = precos_tipos_eventos.funcao_profissional_id
+                AND p2.regiao = precos_tipos_eventos.regiao
+            );
+            
+            -- If conflicting prices existed, just delete the old ones (duplicate) since we prefer the kept type's prices usually
+            DELETE FROM precos_tipos_eventos WHERE tipo_evento_id = dup_id;
+
+            -- 3. Delete the Type
+            DELETE FROM tipos_eventos WHERE id = dup_id;
+            
+        END LOOP;
+    END LOOP;
+END $$;