<?php

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

class CreateCoLendingLoanMetricsTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('co_lending_loan_metrics', function (Blueprint $table) {
            $table->increments('id');
            $table->string('loan_id', 50);
            $table->string('rps_type', 50);
            
            $table->decimal('principal_outstanding', 15, 2)->default(0.00);
            $table->decimal('interest_outstanding', 15, 2)->default(0.00);
            $table->decimal('total_bounce_due', 15, 2)->default(0.00);
            $table->decimal('total_penal_due', 15, 2)->default(0.00);
            $table->decimal('amount_overdue', 15, 2)->default(0.00);
            $table->decimal('total_outstanding', 15, 2)->default(0.00);
            
            $table->date('first_unpaid_emi_date')->nullable();
            $table->integer('dpd')->default(0);
            $table->string('dpd_bucket', 20)->default('Current');
            $table->integer('emi_paid_count')->default(0);
            $table->integer('emi_unpaid_count')->default(0);
            
            $table->timestamps();
            
            // Composite unique key for upserts
            $table->unique(['loan_id', 'rps_type'], 'loan_rps_unique');
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('co_lending_loan_metrics');
    }
}