<?php

namespace Tests\Feature\Business;

use App\Models\Auth\Permission;
use App\Models\Auth\Role;
use App\Models\Auth\User;
use App\Utilities\SidebarPermissions;
use Tests\Feature\FeatureTestCase;

class LaborExpensePageAccessTest extends FeatureTestCase
{
    public function test_labor_expense_page_is_visible_only_to_the_named_accounts(): void
    {
        $chenxi = $this->account('晨曦');
        $jiangling = $this->account('江陵');
        $other = $this->account('其他财务');

        $this->assertTrue($this->pageIsVisible($chenxi));
        $this->assertTrue($this->pageIsVisible($jiangling));
        $this->assertFalse($this->pageIsVisible($other));
        $this->assertFalse($this->pageIsVisible($this->user));
    }

    public function test_explicit_page_permission_cannot_bypass_the_viewer_allowlist(): void
    {
        $other = $this->account('其他财务');
        $subject = 'user_' . $other->id;
        setting()->set('system.sidebar_permissions', [
            'configured' => [$subject],
            'subjects' => [
                $subject => ['financial-operations/labor-expenses'],
            ],
        ]);

        $this->assertFalse($this->pageIsVisible($other));
    }

    public function test_direct_page_and_generic_actions_use_the_same_allowlist(): void
    {
        $chenxi = $this->account('晨曦');
        $other = $this->account('其他财务');
        $routeParameters = [
            'section' => 'financial-operations',
            'page' => 'labor-expenses',
        ];

        $this->loginAs($chenxi)
            ->get(route('business.pages.show', $routeParameters))
            ->assertOk();

        $this->withExceptionHandling()->loginAs($other)
            ->get(route('business.pages.show', $routeParameters))
            ->assertForbidden();
        $this->post(route('business.pages.store', $routeParameters), [])
            ->assertForbidden();

        $this->withExceptionHandling()->loginAs($this->user)
            ->get(route('business.pages.show', $routeParameters))
            ->assertForbidden();
    }

    public function test_page_contains_the_workbook_headers_and_formulas_without_payroll_rows(): void
    {
        $chenxi = $this->account('晨曦');
        $fields = config('labor_expense_table.fields');
        $formulaFields = collect($fields)->filter(
            static fn (array $field): bool => filled($field['formula'] ?? null)
        );

        $this->assertCount(61, $fields);
        $this->assertCount(48, $formulaFields);

        $response = $this->loginAs($chenxi)->get(route('business.pages.show', [
            'section' => 'financial-operations',
            'page' => 'labor-expenses',
        ]))->assertOk()
            ->assertSeeText('人工费用测算表')
            ->assertSeeText('基础信息')
            ->assertSeeText('原数据')
            ->assertSeeText('提高公积金基数方案')
            ->assertSeeText('工资+兼职方案')
            ->assertSeeText('汇算清缴')
            ->assertSee('data-labor-expense', false)
            ->assertSee('data-labor-expense-table', false)
            ->assertSee('=F#-G#-H#-I#', false)
            ->assertSee('=IF(AN#&lt;=0,0,IF(AN#&lt;=4000,800,AN#*0.2))', false)
            ->assertSee('=IF(J#&lt;=0,&quot;&quot;,IF(J#&lt;=3000,0.03', false)
            ->assertSee('=IF(J#&lt;=0,&quot;&quot;,IF(J#&lt;=3000,0,IF(J#&lt;=12000,210', false)
            ->assertSee('=J#*K#-L#', false)
            ->assertSee('=IF(F#&lt;=0,&quot;&quot;,IF(F#&lt;=8500,4952', false)
            ->assertSee('=O#*0.12', false)
            ->assertSee('=Q#-H#', false)
            ->assertSee('=S#*T#-U#', false)
            ->assertSee('=IF(T#&lt;=0.03,0,IF(T#&lt;=0.1,3000,12000))', false)
            ->assertDontSee('data-labor-row="0"', false);

        $html = $response->getContent();
        $this->assertSame(61, substr_count($html, 'data-labor-header="'));
        $this->assertSame(48, substr_count($html, 'class="labor-expense-formula"'));
    }

    public function test_basic_deduction_tax_amount_and_housing_fund_base_are_formula_driven(): void
    {
        $fields = collect(config('labor_expense_table.fields'))->keyBy('key');

        $this->assertSame('formula_number', $fields['I']['kind']);
        $this->assertSame('=5000', $fields['I']['formula']);
        $this->assertSame('formula_number', $fields['AZ']['kind']);
        $this->assertSame('=60000', $fields['AZ']['formula']);
        $this->assertSame('formula_number', $fields['M']['kind']);
        $this->assertSame('=J#*K#-L#', $fields['M']['formula']);
        $this->assertSame('=M#*12', $fields['N']['formula']);

        $this->assertSame('formula_number', $fields['O']['kind']);
        $this->assertSame(
            [4952, 8000, 10000, 12000],
            $this->housingFundBases($fields['O']['formula'])
        );

        foreach (['P' => '=O#*0.12', 'Q' => '=O#*0.12', 'R' => '=Q#-H#', 'V' => '=S#*T#-U#'] as $key => $formula) {
            $this->assertSame('formula_number', $fields[$key]['kind']);
            $this->assertSame($formula, $fields[$key]['formula']);
        }

        $this->assertSame('formula_number', $fields['AA']['kind']);
        $this->assertSame('=IF(T#<=0.03,0,IF(T#<=0.1,3000,12000))', $fields['AA']['formula']);
    }

    public function test_monthly_and_annual_tax_quick_deductions_are_formula_driven(): void
    {
        $fields = collect(config('labor_expense_table.fields'))->keyBy('key');

        foreach (['L', 'U', 'AH', 'Y', 'AL', 'BD'] as $key) {
            $this->assertNotEmpty($fields[$key]['formula'] ?? null, "{$key} 应配置速算扣除数公式");
        }

        foreach (['L' => 'J', 'U' => 'S', 'AH' => 'AF'] as $key => $taxableKey) {
            $this->assertSame('formula_number', $fields[$key]['kind']);
            $this->assertStringStartsWith("=IF({$taxableKey}#<=0,\"\"", $fields[$key]['formula']);
            $this->assertSame(
                [0, 210, 1410, 2660, 4410, 7160, 15160],
                $this->quickDeductions($fields[$key]['formula'])
            );
        }

        foreach (['Y' => 'W', 'AL' => 'AJ', 'BD' => 'BB'] as $key => $taxableKey) {
            $this->assertStringStartsWith("=IF({$taxableKey}#", $fields[$key]['formula']);
            $this->assertSame(
                [0, 2520, 16920, 31920, 52920, 85920, 181920],
                $this->quickDeductions($fields[$key]['formula'])
            );
        }
    }

    private function pageIsVisible(User $user): bool
    {
        $financialOperations = collect(SidebarPermissions::navigationFor($user))
            ->firstWhere('slug', 'financial-operations');

        return collect($financialOperations['pages'] ?? [])
            ->contains('slug', 'labor-expenses');
    }

    private function account(string $name): User
    {
        $suffix = User::count();
        $user = User::create([
            'name' => $name,
            'email' => 'labor-access-' . $suffix . '@example.test',
            'password' => 'fixture-unused-password',
            'enabled' => true,
            'locale' => 'zh-CN',
            'landing_page' => 'dashboard',
        ]);
        $user->roles()->attach(Role::where('name', 'user')->firstOrFail()->id);
        $user->permissions()->attach(Permission::where('name', 'read-admin-panel')->firstOrFail()->id);
        $user->companies()->attach($this->company->id);

        return $user;
    }

    private function quickDeductions(string $formula): array
    {
        preg_match_all('/IF\([A-Z]+#<=\d+,(\d+)/', $formula, $matches);
        $deductions = array_values(array_unique(array_map('intval', $matches[1])));

        if (preg_match('/,(\d+)\)+\s*$/', $formula, $fallback)) {
            $deductions[] = (int) $fallback[1];
        }

        return $deductions;
    }

    private function housingFundBases(string $formula): array
    {
        preg_match_all('/IF\(F#<=\d+,(\d+)/', $formula, $matches);
        $bases = array_map('intval', $matches[1]);

        if (preg_match('/,(\d+)\)+\s*$/', $formula, $fallback)) {
            $bases[] = (int) $fallback[1];
        }

        return $bases;
    }
}