finance_app/database/migrations/2026_06_16_183426_securities.php

<?php

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

return new class extends Migration
{
    /**
     * Run the migrations.
     */
    public function up(): void
    {
        Schema::create('securities', function (Blueprint $table) {
            $table->id();
 
            $table->string('code', 20);
            $table->enum('type', ['stock', 'etf', 'fund']);
            $table->string('source', 20); // twse, tpex, cnyes
            $table->string('name'); // 中文名稱/簡稱
 
            $table->decimal('latest_price', 15, 4)->nullable(); // 最新報價/淨值
            $table->timestamp('latest_price_at')->nullable(); // 最新報價/淨值時間
            $table->decimal('change_amount', 15, 4)->nullable(); // 漲跌
            $table->decimal('change_rate', 8, 4)->nullable(); // 漲跌幅(%)
 
            $table->jsonb('meta')->nullable(); // 基金專屬額外資訊(category、riskLevel、isinCode...)
 
            $table->timestamps();
 
            $table->unique(['code', 'type']);
        });
    }
 
    public function down(): void
    {
        Schema::dropIfExists('securities');
    }
};