<?php

namespace Tests\Unit;

use App\Models\ResearchDirection;
use App\Models\Teacher;
use App\Services\Crawl\CrawlImportService;
use App\Support\TeacherLibraryStatus;
use Tests\TestCase;

class CrawlImportTeacherFillEmptyTest extends TestCase
{
    public function test_fill_empty_teacher_fields_only_updates_blank_values(): void
    {
        $teacher = Teacher::query()->create([
            'name' => '补空字段测试老师',
            'university_id' => null,
            'department' => '计算机学院',
            'bio' => null,
            'city' => '待补充',
            'title' => '待补充',
            'email' => null,
            'phone' => null,
            'library_status' => TeacherLibraryStatus::Active,
            'remark' => '高校抓取入库',
        ]);

        $direction = ResearchDirection::query()->firstOrCreate(
            ['name' => '补空字段测试方向'],
            ['sort' => 0, 'status' => 1, 'remark' => 'test'],
        );

        try {
            $service = app(CrawlImportService::class);
            $changed = $service->fillEmptyTeacherFields($teacher, [
                'email' => 'fill-empty-test@sjtu.edu.cn',
                'phone' => '021-12345678',
                'title' => '教授',
                'bio' => '长期从事操作系统研究。',
                'city' => '上海',
                'profile_url' => 'https://www.cs.sjtu.edu.cn/jiaoshiml/fill-empty-test.html',
                'research_direction_ids' => [$direction->id],
            ]);

            $this->assertTrue($changed);
            $teacher->refresh();
            $this->assertSame('fill-empty-test@sjtu.edu.cn', $teacher->email);
            $this->assertSame('021-12345678', $teacher->phone);
            $this->assertSame('教授', $teacher->title);
            $this->assertSame('长期从事操作系统研究。', $teacher->bio);
            $this->assertSame('上海', $teacher->city);
            $this->assertStringContainsString('fill-empty-test.html', (string) $teacher->remark);
            $this->assertSame([$direction->id], $teacher->researchDirections()->pluck('research_directions.id')->all());

            // 已有值不应被覆盖
            $changedAgain = $service->fillEmptyTeacherFields($teacher, [
                'email' => 'other@sjtu.edu.cn',
                'phone' => '021-87654321',
                'title' => '副教授',
                'bio' => '另一段简介',
                'city' => '北京',
                'research_direction_ids' => [$direction->id],
            ]);
            $this->assertFalse($changedAgain);
            $teacher->refresh();
            $this->assertSame('fill-empty-test@sjtu.edu.cn', $teacher->email);
            $this->assertSame('021-12345678', $teacher->phone);
            $this->assertSame('教授', $teacher->title);
            $this->assertSame('长期从事操作系统研究。', $teacher->bio);
            $this->assertSame('上海', $teacher->city);
        } finally {
            $teacher->researchDirections()->detach();
            $teacher->forceDelete();
        }
    }

    public function test_fill_empty_overwrites_invalid_nav_title(): void
    {
        $teacher = Teacher::query()->create([
            'name' => '误抓职称测试老师',
            'university_id' => null,
            'department' => '电子信息与电气工程学院',
            'bio' => '已有简介',
            'city' => '上海',
            'title' => '电气首页',
            'email' => 'nav-title-test@sjtu.edu.cn',
            'phone' => '021-11112222',
            'library_status' => TeacherLibraryStatus::Active,
            'remark' => '高校抓取入库',
        ]);

        try {
            $service = app(CrawlImportService::class);
            $changed = $service->fillEmptyTeacherFields($teacher, [
                'title' => '教授',
                'email' => 'other@sjtu.edu.cn',
                'phone' => '021-99998888',
                'bio' => '不应覆盖的简介',
            ]);

            $this->assertTrue($changed);
            $teacher->refresh();
            $this->assertSame('教授', $teacher->title);
            $this->assertSame('nav-title-test@sjtu.edu.cn', $teacher->email);
            $this->assertSame('021-11112222', $teacher->phone);
            $this->assertSame('已有简介', $teacher->bio);
        } finally {
            $teacher->forceDelete();
        }
    }
}