<?php

namespace App\Http\Controllers\Api\Mini;

use App\Http\Controllers\Api\Concerns\CallsIdentityApi;
use App\Http\Controllers\Controller;
use App\Services\Billing\BillingClient;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Log;
use Throwable;

class WalletController extends Controller
{
    use CallsIdentityApi;

    public function __construct(private BillingClient $billing) {}

    public function show(): JsonResponse
    {
        $account = ladill_account();
        $balanceMinor = 0;
        $ledger = [];

        try {
            $balanceMinor = $this->billing->balanceMinor($account->public_id);
            $ledger = $this->billing->serviceLedger($account->public_id, config('billing.service', 'mini'));
        } catch (Throwable $e) {
            Log::warning('Mini API wallet load failed', ['user' => $account->public_id, 'error' => $e->getMessage()]);
        }

        return response()->json([
            'data' => [
                'currency' => 'GHS',
                'balance_minor' => $balanceMinor,
                'spent_minor' => (int) ($ledger['spent_minor'] ?? 0),
                'credited_minor' => (int) ($ledger['credited_minor'] ?? 0),
            ],
        ]);
    }

    public function topup(Request $request): JsonResponse
    {
        $account = ladill_account();

        $data = $request->validate([
            'amount' => ['required', 'numeric', 'min:1', 'max:10000'],
        ]);

        $response = $this->identitySend('POST', '/api/identity/wallet-topup-account', [
            'user' => $account->public_id,
            'amount' => (float) $data['amount'],
            // Paystack returns the customer here after payment; the app catches the deep link.
            'return_url' => 'https://'.config('app.platform_domain').'/mini/wallet/topup-complete',
        ]);
        $this->rethrowValidation($response, 'amount');

        $checkoutUrl = (string) $response->json('data.checkout_url', '');
        if ($checkoutUrl === '') {
            return response()->json(['message' => 'Could not start top-up. Please try again.'], 422);
        }

        return response()->json(['data' => ['checkout_url' => $checkoutUrl]]);
    }

    public function banks(Request $request): JsonResponse
    {
        $type = $request->query('type') === 'mobile_money' ? 'mobile_money' : 'bank';
        $response = $this->identitySend('GET', '/api/identity/banks?type='.urlencode($type), []);

        return response()->json(['data' => $response->json('data', [])]);
    }

    public function payoutAccount(): JsonResponse
    {
        $response = $this->identitySend('GET', '/api/identity/payout-account?user='.urlencode((string) ladill_account()->public_id), []);

        return response()->json(['data' => ['payout_account' => $response->json('data.payout_account')]]);
    }

    public function updatePayoutAccount(Request $request): JsonResponse
    {
        $data = $request->validate([
            'account_type' => ['required', 'in:mobile_money,bank_account'],
            'account_name' => ['required', 'string', 'max:200'],
            'account_number' => ['required', 'string', 'max:30'],
            'bank_code' => ['required', 'string', 'max:30'],
            'bank_name' => ['required', 'string', 'max:200'],
            'currency' => ['sometimes', 'string', 'size:3'],
        ]);
        $data['currency'] = $data['currency'] ?? 'GHS';

        $response = $this->identitySend('PUT', '/api/identity/payout-account', array_merge(
            ['user' => ladill_account()->public_id],
            $data,
        ));
        $this->rethrowValidation($response, 'account_number');

        return response()->json(['data' => ['payout_account' => $response->json('data.payout_account')]]);
    }

    public function withdrawals(): JsonResponse
    {
        $response = $this->identitySend('GET', '/api/identity/wallet/withdrawals?user='.urlencode((string) ladill_account()->public_id), []);

        return response()->json(['data' => $response->json('data', [])]);
    }

    public function withdraw(Request $request): JsonResponse
    {
        $data = $request->validate([
            'amount' => ['required', 'numeric', 'min:1', 'max:50000'],
        ]);

        $response = $this->identitySend('POST', '/api/identity/wallet/withdraw', [
            'user' => ladill_account()->public_id,
            'amount' => (float) $data['amount'],
        ]);
        $this->rethrowValidation($response, 'amount');

        return response()->json(['data' => $response->json('data', [])]);
    }
}