<?php

namespace Tests\Unit;

use App\Controllers\EmployeeRestController;
use App\Models\ClientPolicyModel;
use App\Models\ReminderMailConfigModel;
use CodeIgniter\Test\CIUnitTestCase;
use Tests\Support\Traits\ReminderMailControllerTestTrait;

class SaveReminderMailConfigTest extends CIUnitTestCase
{
    use ReminderMailControllerTestTrait;

    private function mockReminderMailConfigModel(array $methods): ReminderMailConfigModel
    {
        return $this->getMockBuilder(ReminderMailConfigModel::class)
            ->onlyMethods(array_keys($methods))
            ->getMock();
    }

    public function testMissingClientPolicyIdReturns400()
    {
        $controller = $this->buildJsonPostController(
            ['frequency' => 'daily'],
            $this->createMock(ClientPolicyModel::class),
            $this->mockReminderMailConfigModel([])
        );

        $body = $this->decodeResponse($controller->saveReminderMailConfig());

        $this->assertFalse($body['status']);
        $this->assertSame(400, $body['code']);
        $this->assertSame('client_policy_id is required', $body['message']);
    }

    public function testMissingFrequencyReturns400()
    {
        $clientPolicyModel = $this->createMock(ClientPolicyModel::class);

        $controller = $this->buildJsonPostController(
            ['client_policy_id' => 123],
            $clientPolicyModel,
            $this->mockReminderMailConfigModel([])
        );

        $body = $this->decodeResponse($controller->saveReminderMailConfig());

        $this->assertFalse($body['status']);
        $this->assertSame(400, $body['code']);
        $this->assertSame('frequency is required', $body['message']);
    }

    public function testClientPolicyNotFoundReturns404()
    {
        $clientPolicyModel = $this->createMock(ClientPolicyModel::class);
        $clientPolicyModel->method('find')->with(123)->willReturn(null);

        $controller = $this->buildJsonPostController(
            [
                'client_policy_id' => 123,
                'frequency'        => 'daily',
            ],
            $clientPolicyModel,
            $this->mockReminderMailConfigModel([])
        );

        $body = $this->decodeResponse($controller->saveReminderMailConfig());

        $this->assertFalse($body['status']);
        $this->assertSame(404, $body['code']);
        $this->assertSame('Client policy not found', $body['message']);
    }

    public function testSaveConfigValidationErrorReturns400()
    {
        $clientPolicyModel = $this->createMock(ClientPolicyModel::class);
        $clientPolicyModel->method('find')->with(123)->willReturn(['id' => 123]);

        $reminderMailConfigModel = $this->mockReminderMailConfigModel(['saveConfig' => null]);
        $reminderMailConfigModel->expects($this->once())
            ->method('saveConfig')
            ->with(
                123,
                'weekly',
                '9',
                1,
                $this->callback(function (array $options): bool {
                    return !array_key_exists('email_subject', $options)
                        && !array_key_exists('email_body', $options);
                })
            )
            ->willReturn([
                'status'  => false,
                'message' => 'Weekly reminder_days must be between 0 (Sunday) and 6 (Saturday).',
            ]);

        $controller = $this->buildJsonPostController(
            [
                'client_policy_id' => 123,
                'frequency'        => 'weekly',
                'reminder_days'    => '9',
            ],
            $clientPolicyModel,
            $reminderMailConfigModel
        );

        $body = $this->decodeResponse($controller->saveReminderMailConfig());

        $this->assertFalse($body['status']);
        $this->assertSame(400, $body['code']);
        $this->assertSame(
            'Weekly reminder_days must be between 0 (Sunday) and 6 (Saturday).',
            $body['message']
        );
    }

    public function testSuccessfulSaveIncludesEmailTemplateFields()
    {
        $savedConfig = [
            'id'               => 10,
            'client_policy_id' => 123,
            'frequency'        => ReminderMailConfigModel::FREQUENCY_DAILY,
            'email_subject'    => 'Reminder subject',
            'email_body'       => '<p>Reminder body</p>',
            'is_enabled'       => 1,
        ];

        $clientPolicyModel = $this->createMock(ClientPolicyModel::class);
        $clientPolicyModel->method('find')->with(123)->willReturn(['id' => 123]);

        $reminderMailConfigModel = $this->mockReminderMailConfigModel(['saveConfig' => null]);
        $reminderMailConfigModel->expects($this->once())
            ->method('saveConfig')
            ->with(
                123,
                'daily',
                null,
                1,
                $this->callback(function (array $options): bool {
                    return ($options['email_subject'] ?? null) === 'Reminder subject'
                        && ($options['email_body'] ?? null) === '<p>Reminder body</p>'
                        && ($options['hr_id'] ?? null) === 45;
                })
            )
            ->willReturn([
                'status' => true,
                'action' => 'updated',
                'data'   => $savedConfig,
            ]);

        $controller = $this->buildJsonPostController(
            [
                'client_policy_id' => 123,
                'frequency'        => 'daily',
                'email_subject'    => 'Reminder subject',
                'email_body'       => '<p>Reminder body</p>',
                'hr_id'            => 45,
            ],
            $clientPolicyModel,
            $reminderMailConfigModel
        );

        $body = $this->decodeResponse($controller->saveReminderMailConfig());

        $this->assertTrue($body['status']);
        $this->assertSame(200, $body['code']);
        $this->assertSame('updated', $body['action']);
        $this->assertSame('Reminder mail configuration saved successfully', $body['message']);
        $this->assertSame('Reminder subject', $body['data']['email_subject']);
        $this->assertSame('<p>Reminder body</p>', $body['data']['email_body']);
    }
}