<?php

namespace Tests\Unit;

use App\Services\WorldCup\Repositories\WorldCupReviewRepositoryInterface;
use App\Services\WorldCup\WorldCupReviewService;
use Tests\TestCase;

class WorldCupReviewServiceTest extends TestCase
{
    public function test_approve_sends_claim_mail_and_writes_audit()
    {
        $repository = new InMemoryWorldCupReviewRepository();
        $service = new WorldCupReviewService($repository);

        $result = $service->approve(1, 'admin-01');

        $this->assertTrue($result['success']);
        $this->assertSame('approved', $repository->rewards[1]['status']);
        $this->assertSame(6000, $repository->mails[1001][0]['amount']);
        $this->assertSame(6000, $repository->mails[1002][0]['amount']);
        $this->assertSame('Claim your $60 referral reward', $repository->mails[1001][0]['title']);
        $this->assertSame('Claim your $60 welcome reward', $repository->mails[1002][0]['title']);
        $this->assertStringContainsString('Reward: $60', $repository->mails[1001][0]['text']);
        $this->assertStringContainsString('first deposit of $120', $repository->mails[1002][0]['text']);
        $this->assertSame('approve', $repository->audits[0]['action']);
    }

    public function test_reject_requires_reason_and_writes_audit()
    {
        $repository = new InMemoryWorldCupReviewRepository();
        $service = new WorldCupReviewService($repository);

        $missingReason = $service->reject(1, 'admin-01', '');
        $result = $service->reject(1, 'admin-01', 'same_device');

        $this->assertFalse($missingReason['success']);
        $this->assertSame('Reason is required', $missingReason['message']);
        $this->assertTrue($result['success']);
        $this->assertSame('rejected', $repository->rewards[1]['status']);
        $this->assertSame(WorldCupReviewService::REJECT_REASON, $repository->rewards[1]['reason_code']);
        $this->assertSame('Your referral reward could not be approved', $repository->mails[1001][0]['title']);
        $this->assertSame('Welcome reward not approved', $repository->mails[1002][0]['title']);
        $this->assertStringContainsString(WorldCupReviewService::REJECT_REASON, $repository->mails[1001][0]['text']);
        $this->assertStringContainsString('Your welcome reward could not be approved.', $repository->mails[1002][0]['text']);
        $this->assertSame('reject', $repository->audits[0]['action']);
    }

    public function test_hold_moves_reviewing_reward_to_on_hold()
    {
        $repository = new InMemoryWorldCupReviewRepository();
        $service = new WorldCupReviewService($repository);

        $result = $service->hold(1, 'admin-01');

        $this->assertTrue($result['success']);
        $this->assertSame('on_hold', $repository->rewards[1]['status']);
        $this->assertSame('hold', $repository->audits[0]['action']);
    }

    public function test_clawback_only_allows_approved_reward()
    {
        $repository = new InMemoryWorldCupReviewRepository();
        $service = new WorldCupReviewService($repository);

        $notApproved = $service->clawback(1, 'admin-01', 'fraud', true);
        $approved = $service->clawback(3, 'admin-01', 'fraud', true);

        $this->assertFalse($notApproved['success']);
        $this->assertSame('Only approved rewards can be clawed back', $notApproved['message']);
        $this->assertTrue($approved['success']);
        $this->assertSame('clawed_back', $repository->rewards[3]['status']);
        $this->assertSame(1001, $repository->banned[0]);
        $this->assertSame(1004, $repository->banned[1]);
        $this->assertSame(10000, $repository->clawedBack[1001]);
        $this->assertSame(10000, $repository->clawedBack[1004]);
    }

    public function test_batch_approve_rejects_high_risk_rewards()
    {
        $repository = new InMemoryWorldCupReviewRepository();
        $service = new WorldCupReviewService($repository);

        $result = $service->batchApprove([1, 2], 'admin-01');

        $this->assertFalse($result['success']);
        $this->assertSame('High risk rewards must be reviewed one by one', $result['message']);
        $this->assertSame('reviewing', $repository->rewards[1]['status']);
        $this->assertSame('reviewing', $repository->rewards[2]['status']);
    }

    public function test_batch_reject_requires_reason()
    {
        $repository = new InMemoryWorldCupReviewRepository();
        $service = new WorldCupReviewService($repository);

        $missingReason = $service->batchReject([1, 2], 'admin-01', '');
        $result = $service->batchReject([1, 2], 'admin-01', 'bulk_signup');

        $this->assertFalse($missingReason['success']);
        $this->assertSame('Reason is required', $missingReason['message']);
        $this->assertTrue($result['success']);
        $this->assertSame('rejected', $repository->rewards[1]['status']);
        $this->assertSame('rejected', $repository->rewards[2]['status']);
    }
}

class InMemoryWorldCupReviewRepository implements WorldCupReviewRepositoryInterface
{
    public $rewards = [
        1 => [
            'reward_id' => 1,
            'referrer_id' => 1001,
            'invitee_id' => 1002,
            'first_deposit_amt' => 12000,
            'reward_each' => 6000,
            'total_liability' => 12000,
            'risk_level' => 'low',
            'status' => 'reviewing',
        ],
        2 => [
            'reward_id' => 2,
            'referrer_id' => 1001,
            'invitee_id' => 1003,
            'first_deposit_amt' => 30000,
            'reward_each' => 10000,
            'total_liability' => 20000,
            'risk_level' => 'high',
            'status' => 'reviewing',
        ],
        3 => [
            'reward_id' => 3,
            'referrer_id' => 1001,
            'invitee_id' => 1004,
            'first_deposit_amt' => 30000,
            'reward_each' => 10000,
            'total_liability' => 20000,
            'risk_level' => 'low',
            'status' => 'approved',
        ],
    ];

    public $mails = [];

    public $clawedBack = [];

    public $banned = [];

    public $audits = [];

    public function findReward(int $rewardId): ?array
    {
        return $this->rewards[$rewardId] ?? null;
    }

    public function findRewards(array $rewardIds): array
    {
        return array_values(array_filter($this->rewards, function (array $reward) use ($rewardIds) {
            return in_array((int)$reward['reward_id'], $rewardIds, true);
        }));
    }

    public function updateRewardStatus(
        int $rewardId,
        string $status,
        string $actor,
        string $reasonCode = null
    ): void {
        $this->rewards[$rewardId]['status'] = $status;
        $this->rewards[$rewardId]['review_by'] = $actor;
        $this->rewards[$rewardId]['reason_code'] = $reasonCode;
    }

    public function payReward(array $reward): void
    {
        $this->mails[$reward['referrer_id']][] = [
            'title' => 'Claim your $60 referral reward',
            'text' => 'Reward: $60',
            'amount' => $reward['reward_each'],
        ];
        $this->mails[$reward['invitee_id']][] = [
            'title' => 'Claim your $60 welcome reward',
            'text' => 'Welcome! Your referral reward is ready to claim. '
                . 'You signed up with an invite and made your first deposit of $120. '
                . 'Reward: $60 (50% of your first deposit). '
                . 'Tap Claim to add it to your balance.',
            'amount' => $reward['reward_each'],
        ];
    }

    public function sendRejectMail(array $reward, string $reason): void
    {
        $this->mails[$reward['referrer_id']][] = [
            'title' => 'Your referral reward could not be approved',
            'text' => 'Reason: ' . $reason,
            'amount' => 0,
        ];
        $this->mails[$reward['invitee_id']][] = [
            'title' => 'Welcome reward not approved',
            'text' => 'Your welcome reward could not be approved.' . "\n"
                . 'Reason: ' . $reason . '.' . "\n"
                . 'If you think this is a mistake, contact support.',
            'amount' => 0,
        ];
    }

    public function clawbackReward(array $reward, bool $banUsers): void
    {
        $this->clawedBack[$reward['referrer_id']] = ($this->clawedBack[$reward['referrer_id']] ?? 0) + $reward['reward_each'];
        $this->clawedBack[$reward['invitee_id']] = ($this->clawedBack[$reward['invitee_id']] ?? 0) + $reward['reward_each'];

        if ($banUsers) {
            $this->banned[] = $reward['referrer_id'];
            $this->banned[] = $reward['invitee_id'];
        }
    }

    public function writeAudit(
        int $rewardId,
        string $actor,
        string $action,
        ?string $reasonCode,
        ?string $beforeStatus,
        ?string $afterStatus,
        array $payload = []
    ): void {
        $this->audits[] = compact(
            'rewardId',
            'actor',
            'action',
            'reasonCode',
            'beforeStatus',
            'afterStatus',
            'payload'
        );
    }

    public function queue(array $filters): array
    {
        return [];
    }

    public function kpi(): array
    {
        return [];
    }

    public function auditLogs($filters): array
    {
        return [];
    }
}