<?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('incomes', function (Blueprint $table) {
            $table->id();

            // 基本資訊
            $table->string('income_number')->unique();           // 收入編號：INC-2025-0001
            $table->string('title');                             // 收入標題
            $table->text('description')->nullable();             // 說明
            $table->date('income_date');                         // 收入日期
            $table->decimal('amount', 12, 2);                    // 金額

            // 收入分類
            $table->string('income_type');                       // 收入類型
            $table->foreignId('chart_of_account_id')             // 會計科目
                  ->constrained('chart_of_accounts');

            // 付款資訊
            $table->string('payment_method');                    // 付款方式
            $table->string('bank_account')->nullable();          // 銀行帳戶
            $table->string('payer_name')->nullable();            // 付款人姓名
            $table->string('receipt_number')->nullable();        // 收據編號
            $table->string('transaction_reference')->nullable(); // 銀行交易參考號
            $table->string('attachment_path')->nullable();       // 附件路徑

            // 會員關聯
            $table->foreignId('member_id')->nullable()
                  ->constrained()->nullOnDelete();

            // 審核流程
            $table->string('status')->default('pending');        // pending, confirmed, cancelled

            // 出納記錄
            $table->foreignId('recorded_by_cashier_id')
                  ->constrained('users');
            $table->timestamp('recorded_at');

            // 會計確認
            $table->foreignId('confirmed_by_accountant_id')->nullable()
                  ->constrained('users');
            $table->timestamp('confirmed_at')->nullable();

            // 關聯出納日記帳
            $table->foreignId('cashier_ledger_entry_id')->nullable()
                  ->constrained('cashier_ledger_entries')->nullOnDelete();

            $table->text('notes')->nullable();
            $table->timestamps();

            // 索引
            $table->index('income_date');
            $table->index('income_type');
            $table->index('status');
            $table->index(['member_id', 'income_type']);
        });

        // 在 accounting_entries 表新增 income_id 欄位
        Schema::table('accounting_entries', function (Blueprint $table) {
            if (!Schema::hasColumn('accounting_entries', 'income_id')) {
                $table->foreignId('income_id')->nullable()
                      ->after('finance_document_id')
                      ->constrained('incomes')->nullOnDelete();
            }
        });
    }

    /**
     * Reverse the migrations.
     */
    public function down(): void
    {
        Schema::table('accounting_entries', function (Blueprint $table) {
            if (Schema::hasColumn('accounting_entries', 'income_id')) {
                $table->dropForeign(['income_id']);
                $table->dropColumn('income_id');
            }
        });

        Schema::dropIfExists('incomes');
    }
};