<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;
use Illuminate\Support\Facades\DB;

return new class extends Migration
{
    public function up(): void
    {
        Schema::create('releves', function (Blueprint $table) {
            $table->id();
            $table->foreignId('source_id')->constrained()->cascadeOnDelete();
            $table->jsonb('data'); // champs variables selon source_type
            $table->foreignId('created_by')->constrained('users')->restrictOnDelete();
            $table->foreignId('updated_by')->constrained('users')->restrictOnDelete();
            $table->timestamps();
        });

        // Colonnes générées stockées pour les champs les plus filtrés
        DB::statement("ALTER TABLE releves ADD COLUMN nom TEXT GENERATED ALWAYS AS (data->>'nom') STORED");
        DB::statement("ALTER TABLE releves ADD COLUMN prenom TEXT GENERATED ALWAYS AS (data->>'prenom') STORED");
        DB::statement("ALTER TABLE releves ADD COLUMN date_evenement TEXT GENERATED ALWAYS AS (data->'date_evenement'->>'valeur') STORED");

        // Index pour les colonnes générées
        DB::statement('CREATE INDEX releves_nom_idx ON releves (nom)');
        DB::statement('CREATE INDEX releves_prenom_idx ON releves (prenom)');
        DB::statement('CREATE INDEX releves_date_evenement_idx ON releves (date_evenement)');

        // Index GIN pour la recherche fulltext sur l'ensemble du JSONB
        DB::statement('CREATE INDEX releves_data_gin_idx ON releves USING gin (data)');
    }

    public function down(): void
    {
        Schema::dropIfExists('releves');
    }
};