<?php

namespace Tests\unit\Api;

use CodeIgniter\Test\CIUnitTestCase;
use App\Controllers\Api\NonEbClaimApiController;

/**
 * Unit tests for NonEbClaimApiController::claimHistory()
 */
class ClaimHistoryTest extends CIUnitTestCase
{
    // ─── Helpers ────────────────────────────────────────────────────────────

    protected function makeController(?array $user = null): NonEbClaimApiController
    {
        $mockUser = $user;

        $controller = new class($mockUser) extends NonEbClaimApiController {
            private ?array $_mockUser;

            public function __construct(?array $u) { $this->_mockUser = $u; }

            protected function getAuthUser(): ?array { return $this->_mockUser; }
        };

        $request  = \Config\Services::request();
        $response = \Config\Services::response();
        $logger   = \Config\Services::logger();
        $controller->initController($request, $response, $logger);

        return $controller;
    }

    /**
     * Build a fluent stub model.
     * $firstReturn  → returned by ->first()
     * $allReturn    → returned by ->findAll()
     */
    protected function makeFluentStub(mixed $firstReturn, array $allReturn = []): object
    {
        return new class($firstReturn, $allReturn) {
            private mixed $fr;
            private array $ar;

            public function __construct(mixed $fr, array $ar) { $this->fr = $fr; $this->ar = $ar; }

            public function __call(string $name, array $args): mixed
            {
                if ($name === 'first')   return $this->fr;
                if ($name === 'findAll') return $this->ar;
                return $this;
            }
        };
    }

    protected function inject(NonEbClaimApiController $ctrl, string $property, object $stub): void
    {
        $ref  = new \ReflectionClass($ctrl);
        $prop = $ref->getProperty($property);
        $prop->setAccessible(true);
        $prop->setValue($ctrl, $stub);
    }

    protected function body(\CodeIgniter\HTTP\ResponseInterface $resp): array
    {
        return json_decode($resp->getBody(), true);
    }

    // ─── Tests ──────────────────────────────────────────────────────────────

    public function testReturns401WhenNoAuth(): void
    {
        $ctrl = $this->makeController(null);
        $resp = $ctrl->claimHistory(1);

        $this->assertSame(401, $resp->getStatusCode());
        $body = $this->body($resp);
        print_r($body);
        $this->assertFalse($body['status']);
        $this->assertSame(401, $body['code']);
    }

    public function testReturns404WhenClaimNotFound(): void
    {
        $ctrl = $this->makeController(['id' => 1, 'name' => 'U', 'email' => 'u@t.com', 'mobile' => '9']);

        // nonEbTicketModel->first() returns null — claim not found
        $this->inject($ctrl, 'nonEbTicketModel', $this->makeFluentStub(null));

        $resp = $ctrl->claimHistory(999);

        $this->assertSame(404, $resp->getStatusCode());
        $body = $this->body($resp);
        print_r($body);
        $this->assertFalse($body['status']);
        $this->assertSame(404, $body['code']);
        $this->assertStringContainsString('not found', strtolower($body['message']));
    }

    public function testReturnsEmptyHistoryWhenNoHistoryRows(): void
    {
        $ctrl = $this->makeController(['id' => 1, 'name' => 'U', 'email' => 'u@t.com', 'mobile' => '9']);

        $this->inject($ctrl, 'nonEbTicketModel', $this->makeFluentStub([
            'id'             => 10,
            'client_id'      => 5,
            'policy_type_id' => 10,
        ]));

        // ticketHistoryModel returns no rows
        $this->inject($ctrl, 'ticketHistoryModel', $this->makeFluentStub(null, []));

        $resp = $ctrl->claimHistory(10);

        $this->assertSame(200, $resp->getStatusCode());
        $body = $this->body($resp);
        print_r($body);
        $this->assertTrue($body['status']);
        $this->assertSame(10, $body['claim_id']);
        $this->assertIsArray($body['history']);
        $this->assertEmpty($body['history']);
    }

    public function testFiltersOutStatusesWithNoDisplayName(): void
    {
        $ctrl = $this->makeController(['id' => 1, 'name' => 'U', 'email' => 'u@t.com', 'mobile' => '9']);

        $this->inject($ctrl, 'nonEbTicketModel', $this->makeFluentStub([
            'id'             => 10,
            'client_id'      => 5,
            'policy_type_id' => 10,
        ]));

        // History rows: status IDs 1, 2, 3
        $historyRows = [
            ['new_value' => '1', 'created_at' => '2026-03-22 10:00:00'],
            ['new_value' => '2', 'created_at' => '2026-03-23 11:00:00'],
            ['new_value' => '3', 'created_at' => '2026-03-24 12:00:00'],
        ];

        // display_map: only status 1 and 3 have display_name; status 2 is internal
        $statusRows = [
            ['id' => 1, 'claim_status' => 'Internal-A', 'display_name' => 'Claim Intimation'],
            ['id' => 3, 'claim_status' => 'Internal-C', 'display_name' => 'Under Process'],
        ];

        // ticketHistoryModel findAll() returns history rows
        $histStub = new class($historyRows) {
            private array $rows;
            public function __construct(array $rows) { $this->rows = $rows; }
            public function __call(string $n, array $a): mixed
            {
                if ($n === 'findAll') return $this->rows;
                if ($n === 'first')   return $this->rows[0] ?? null;
                return $this;
            }
        };

        // claimStatusModel findAll() returns status rows
        $statusStub = new class($statusRows) {
            private array $rows;
            public function __construct(array $rows) { $this->rows = $rows; }
            public function __call(string $n, array $a): mixed
            {
                if ($n === 'findAll') return $this->rows;
                if ($n === 'first')   return $this->rows[0] ?? null;
                return $this;
            }
        };

        $this->inject($ctrl, 'ticketHistoryModel', $histStub);
        $this->inject($ctrl, 'claimStatusModel',   $statusStub);

        $resp = $ctrl->claimHistory(10);

        $this->assertSame(200, $resp->getStatusCode());
        $body = $this->body($resp);
        print_r($body);
        $this->assertTrue($body['status']);
        $this->assertCount(2, $body['history']);

        // Status 2 (no display_name) must not appear
        $statuses = array_column($body['history'], 'status');
        $this->assertContains('Claim Intimation', $statuses);
        $this->assertContains('Under Process', $statuses);
        $this->assertNotContains('Internal-B', $statuses);
    }

    public function testHistoryIsReturnedOldestFirst(): void
    {
        $ctrl = $this->makeController(['id' => 1, 'name' => 'U', 'email' => 'u@t.com', 'mobile' => '9']);

        $this->inject($ctrl, 'nonEbTicketModel', $this->makeFluentStub([
            'id'             => 10,
            'client_id'      => 5,
            'policy_type_id' => 10,
        ]));

        $historyRows = [
            ['new_value' => '1', 'created_at' => '2026-03-22 10:00:00'],
            ['new_value' => '2', 'created_at' => '2026-03-25 14:00:00'],
        ];

        $statusRows = [
            ['id' => 1, 'claim_status' => 'A', 'display_name' => 'Claim Intimation'],
            ['id' => 2, 'claim_status' => 'B', 'display_name' => 'Under Process'],
        ];

        $histStub = new class($historyRows) {
            private array $rows;
            public function __construct(array $rows) { $this->rows = $rows; }
            public function __call(string $n, array $a): mixed
            {
                if ($n === 'findAll') return $this->rows;
                return $this;
            }
        };

        $statusStub = new class($statusRows) {
            private array $rows;
            public function __construct(array $rows) { $this->rows = $rows; }
            public function __call(string $n, array $a): mixed
            {
                if ($n === 'findAll') return $this->rows;
                return $this;
            }
        };

        $this->inject($ctrl, 'ticketHistoryModel', $histStub);
        $this->inject($ctrl, 'claimStatusModel',   $statusStub);

        $resp = $ctrl->claimHistory(10);
        $body = $this->body($resp);
        print_r($body);

        $this->assertCount(2, $body['history']);
        $this->assertSame('Claim Intimation', $body['history'][0]['status']);
        $this->assertSame('Under Process',    $body['history'][1]['status']);
    }

    public function testHistoryItemHasRequiredKeys(): void
    {
        $ctrl = $this->makeController(['id' => 1, 'name' => 'U', 'email' => 'u@t.com', 'mobile' => '9']);

        $this->inject($ctrl, 'nonEbTicketModel', $this->makeFluentStub([
            'id'             => 10,
            'client_id'      => 5,
            'policy_type_id' => 10,
        ]));

        $historyRows = [
            ['new_value' => '1', 'created_at' => '2026-03-22 10:15:00'],
        ];

        $statusRows = [
            ['id' => 1, 'claim_status' => 'A', 'display_name' => 'Claim Settled'],
        ];

        $histStub = new class($historyRows) {
            private array $rows;
            public function __construct(array $rows) { $this->rows = $rows; }
            public function __call(string $n, array $a): mixed { if ($n === 'findAll') return $this->rows; return $this; }
        };
        $statusStub = new class($statusRows) {
            private array $rows;
            public function __construct(array $rows) { $this->rows = $rows; }
            public function __call(string $n, array $a): mixed { if ($n === 'findAll') return $this->rows; return $this; }
        };

        $this->inject($ctrl, 'ticketHistoryModel', $histStub);
        $this->inject($ctrl, 'claimStatusModel',   $statusStub);

        $resp = $ctrl->claimHistory(10);
        $body = $this->body($resp);
        print_r($body);

        $item = $body['history'][0];
        $this->assertArrayHasKey('status',     $item);
        $this->assertArrayHasKey('changed_at', $item);
        $this->assertArrayNotHasKey('modified_by', $item);  // must not expose who changed it
    }
}