<?php

use App\Enums\OwnerVerificationAction;
use App\Enums\OwnerVerificationStatus;
use App\Enums\Permission as PermissionEnum;
use App\Models\OwnerVerificationRequest;
use App\Models\Purchase;
use App\Models\PurchaseItem;
use App\Models\RawMaterialPrice;
use App\Models\Supplier;
use App\Models\User;
use Database\Seeders\RolePermissionSeeder;
use Illuminate\Foundation\Testing\RefreshDatabase;

uses(RefreshDatabase::class);

beforeEach(function () {
    $this->seed(RolePermissionSeeder::class);
});

function createPurchaseUserWithPermission(PermissionEnum ...$permissions): User
{
    $user = User::factory()->create();

    $user->givePermissionTo(
        array_merge(
            [PermissionEnum::DASHBOARD_VIEW->value],
            array_map(fn (PermissionEnum $p) => $p->value, $permissions)
        )
    );

    $user->forgetCachedPermissions();

    return $user;
}

function createPurchaseVerifierUser(): User
{
    $user = User::factory()->create();

    $user->givePermissionTo([
        PermissionEnum::DASHBOARD_VIEW->value,
        PermissionEnum::OWNER_VERIFICATIONS_VIEW->value,
        PermissionEnum::OWNER_VERIFICATIONS_VERIFY->value,
        PermissionEnum::OWNER_VERIFICATIONS_REJECT->value,
    ]);

    $user->forgetCachedPermissions();

    return $user;
}

function approveLatestPurchaseVerificationRequest(User $verifier): OwnerVerificationRequest
{
    $verificationRequest = OwnerVerificationRequest::query()->pending()->latest()->firstOrFail();

    test()->actingAs($verifier)
        ->post(route('admin.manage.owner_verifications.approve_request', $verificationRequest))
        ->assertRedirect();

    return $verificationRequest->fresh();
}

describe('Purchase Owner Verification', function () {
    test('create purchase submits verification without changing stock', function () {
        $user = createPurchaseUserWithPermission(
            PermissionEnum::PURCHASES_VIEW,
            PermissionEnum::PURCHASES_CREATE,
        );

        $supplier = Supplier::factory()->create();
        $price = RawMaterialPrice::factory()->create(['stock' => 10]);
        $initialStock = (float) $price->stock;

        $this->actingAs($user)
            ->postJson(route('admin.manage.purchases.draft_items.store'), [
                'raw_material_price_id' => $price->id,
                'quantity' => 2,
            ])
            ->assertOk();

        $this->actingAs($user)
            ->post(route('admin.manage.purchases.store'), [
                'supplier_id' => $supplier->id,
                'discount' => 0,
                'shipping_cost' => 0,
                'notes' => 'Belanja test',
            ])
            ->assertRedirect(route('admin.manage.purchases.index'));

        $purchase = Purchase::query()->latest()->first();

        expect($purchase)->not->toBeNull();

        $this->assertDatabaseHas('owner_verification_requests', [
            'subject_type' => Purchase::class,
            'subject_id' => $purchase->id,
            'action' => OwnerVerificationAction::CREATE->value,
            'status' => OwnerVerificationStatus::PENDING->value,
        ]);

        expect((float) $price->fresh()->stock)->toBe($initialStock);
    });

    test('approving create purchase increments stock', function () {
        $user = createPurchaseUserWithPermission(
            PermissionEnum::PURCHASES_VIEW,
            PermissionEnum::PURCHASES_CREATE,
        );
        $verifier = createPurchaseVerifierUser();

        $supplier = Supplier::factory()->create();
        $price = RawMaterialPrice::factory()->create(['stock' => 10]);

        $this->actingAs($user)
            ->postJson(route('admin.manage.purchases.draft_items.store'), [
                'raw_material_price_id' => $price->id,
                'quantity' => 2,
            ])
            ->assertOk();

        $this->actingAs($user)
            ->post(route('admin.manage.purchases.store'), [
                'supplier_id' => $supplier->id,
                'discount' => 0,
                'shipping_cost' => 0,
            ])
            ->assertRedirect(route('admin.manage.purchases.index'));

        approveLatestPurchaseVerificationRequest($verifier);

        expect((float) $price->fresh()->stock)->toBe(12.0);
    });

    test('update purchase submits verification request only', function () {
        $user = createPurchaseUserWithPermission(
            PermissionEnum::PURCHASES_VIEW,
            PermissionEnum::PURCHASES_CREATE,
            PermissionEnum::PURCHASES_UPDATE,
        );
        $verifier = createPurchaseVerifierUser();

        $supplier = Supplier::factory()->create();
        $price = RawMaterialPrice::factory()->create(['stock' => 10, 'price' => 50_000]);
        $otherPrice = RawMaterialPrice::factory()->create(['stock' => 5, 'price' => 30_000]);

        $this->actingAs($user)
            ->postJson(route('admin.manage.purchases.draft_items.store'), [
                'raw_material_price_id' => $price->id,
                'quantity' => 2,
            ])
            ->assertOk();

        $this->actingAs($user)
            ->post(route('admin.manage.purchases.store'), [
                'supplier_id' => $supplier->id,
                'discount' => 0,
                'shipping_cost' => 0,
            ])
            ->assertRedirect(route('admin.manage.purchases.index'));

        approveLatestPurchaseVerificationRequest($verifier);

        $purchase = Purchase::query()->latest()->firstOrFail();
        $originalTotal = $purchase->total;

        $this->actingAs($user)
            ->put(route('admin.manage.purchases.update', $purchase), [
                'supplier_id' => $supplier->id,
                'discount' => 1000,
                'shipping_cost' => 0,
                'notes' => 'Ubah belanja',
                'items' => [
                    ['raw_material_price_id' => $otherPrice->id, 'quantity' => 1],
                ],
            ])
            ->assertRedirect(route('admin.manage.purchases.index'));

        $this->assertDatabaseHas('owner_verification_requests', [
            'subject_type' => Purchase::class,
            'subject_id' => $purchase->id,
            'action' => OwnerVerificationAction::UPDATE->value,
            'status' => OwnerVerificationStatus::PENDING->value,
        ]);

        expect($purchase->fresh()->total)->toBe($originalTotal);
    });

    test('delete purchase submits verification request only', function () {
        $user = createPurchaseUserWithPermission(
            PermissionEnum::PURCHASES_VIEW,
            PermissionEnum::PURCHASES_CREATE,
            PermissionEnum::PURCHASES_DELETE,
        );
        $verifier = createPurchaseVerifierUser();

        $supplier = Supplier::factory()->create();
        $price = RawMaterialPrice::factory()->create(['stock' => 10]);

        $this->actingAs($user)
            ->postJson(route('admin.manage.purchases.draft_items.store'), [
                'raw_material_price_id' => $price->id,
                'quantity' => 2,
            ])
            ->assertOk();

        $this->actingAs($user)
            ->post(route('admin.manage.purchases.store'), [
                'supplier_id' => $supplier->id,
                'discount' => 0,
                'shipping_cost' => 0,
            ])
            ->assertRedirect(route('admin.manage.purchases.index'));

        approveLatestPurchaseVerificationRequest($verifier);

        $purchase = Purchase::query()->latest()->firstOrFail();

        $this->actingAs($user)
            ->delete(route('admin.manage.purchases.destroy', $purchase))
            ->assertRedirect(route('admin.manage.purchases.index'));

        $this->assertDatabaseHas('owner_verification_requests', [
            'subject_type' => Purchase::class,
            'subject_id' => $purchase->id,
            'action' => OwnerVerificationAction::DELETE->value,
            'status' => OwnerVerificationStatus::PENDING->value,
        ]);

        expect(Purchase::query()->whereKey($purchase->id)->exists())->toBeTrue();
        expect((float) $price->fresh()->stock)->toBe(12.0);
    });

    test('rejecting create purchase deletes purchase without changing stock', function () {
        $user = createPurchaseUserWithPermission(
            PermissionEnum::PURCHASES_VIEW,
            PermissionEnum::PURCHASES_CREATE,
        );
        $verifier = createPurchaseVerifierUser();

        $supplier = Supplier::factory()->create();
        $price = RawMaterialPrice::factory()->create(['stock' => 10]);

        $this->actingAs($user)
            ->postJson(route('admin.manage.purchases.draft_items.store'), [
                'raw_material_price_id' => $price->id,
                'quantity' => 2,
            ])
            ->assertOk();

        $this->actingAs($user)
            ->post(route('admin.manage.purchases.store'), [
                'supplier_id' => $supplier->id,
                'discount' => 0,
                'shipping_cost' => 0,
            ])
            ->assertRedirect(route('admin.manage.purchases.index'));

        $purchase = Purchase::query()->latest()->firstOrFail();
        $verificationRequest = OwnerVerificationRequest::query()->pending()->latest()->firstOrFail();

        $this->actingAs($verifier)
            ->post(route('admin.manage.owner_verifications.reject_request', $verificationRequest), [
                'reason' => 'Tidak sesuai',
            ])
            ->assertRedirect();

        expect(Purchase::query()->whereKey($purchase->id)->exists())->toBeFalse();
        expect(PurchaseItem::query()->where('purchase_id', $purchase->id)->exists())->toBeFalse();
        expect((float) $price->fresh()->stock)->toBe(10.0);
    });

    test('pending purchase blocks edit route', function () {
        $user = createPurchaseUserWithPermission(
            PermissionEnum::PURCHASES_VIEW,
            PermissionEnum::PURCHASES_CREATE,
            PermissionEnum::PURCHASES_UPDATE,
        );

        $supplier = Supplier::factory()->create();
        $price = RawMaterialPrice::factory()->create(['stock' => 10]);

        $this->actingAs($user)
            ->postJson(route('admin.manage.purchases.draft_items.store'), [
                'raw_material_price_id' => $price->id,
                'quantity' => 2,
            ])
            ->assertOk();

        $this->actingAs($user)
            ->post(route('admin.manage.purchases.store'), [
                'supplier_id' => $supplier->id,
                'discount' => 0,
                'shipping_cost' => 0,
            ])
            ->assertRedirect(route('admin.manage.purchases.index'));

        $purchase = Purchase::query()->latest()->firstOrFail();

        $this->actingAs($user)
            ->get(route('admin.manage.purchases.edit', $purchase))
            ->assertRedirect(route('admin.manage.purchases.index'));
    });

    test('purchase index exposes pending verification state', function () {
        $user = createPurchaseUserWithPermission(
            PermissionEnum::PURCHASES_VIEW,
            PermissionEnum::PURCHASES_CREATE,
        );

        $supplier = Supplier::factory()->create();
        $price = RawMaterialPrice::factory()->create(['stock' => 10]);

        $this->actingAs($user)
            ->postJson(route('admin.manage.purchases.draft_items.store'), [
                'raw_material_price_id' => $price->id,
                'quantity' => 2,
            ])
            ->assertOk();

        $this->actingAs($user)
            ->post(route('admin.manage.purchases.store'), [
                'supplier_id' => $supplier->id,
                'discount' => 0,
                'shipping_cost' => 0,
            ])
            ->assertRedirect(route('admin.manage.purchases.index'));

        $purchase = Purchase::query()->latest()->firstOrFail();

        $response = $this->actingAs($user)
            ->get(route('admin.manage.purchases.index'));

        $response->assertOk();
        $response->assertInertia(fn ($page) => $page
            ->where('purchases.data.0.id', $purchase->id)
            ->where('purchases.data.0.has_pending_request', true)
            ->where('purchases.data.0.pending_request_action', OwnerVerificationAction::CREATE->value)
        );
    });
});

// ─── Index ────────────────────────────────────────────────

describe('Purchase Index', function () {
    test('authenticated user with permission can view purchase index', function () {
        $user = createPurchaseUserWithPermission(PermissionEnum::PURCHASES_VIEW);

        $this->actingAs($user)
            ->get(route('admin.manage.purchases.index'))
            ->assertOk();
    });

    test('guest is redirected to login', function () {
        $this->get(route('admin.manage.purchases.index'))
            ->assertRedirect(route('login'));
    });

    test('user without permission is forbidden', function () {
        $user = User::factory()->create();

        $this->actingAs($user)
            ->get(route('admin.manage.purchases.index'))
            ->assertForbidden();
    });

    test('index can search purchases by supplier name', function () {
        $user = createPurchaseUserWithPermission(PermissionEnum::PURCHASES_VIEW);

        $supplier = Supplier::factory()->create(['name' => 'Supplier Kain']);
        $purchase = Purchase::factory()->create(['supplier_id' => $supplier->id, 'created_by_id' => $user->id]);

        $this->actingAs($user)
            ->get(route('admin.manage.purchases.index', ['search' => 'Kain']))
            ->assertOk();
    });
});

// ─── Create ───────────────────────────────────────────────

describe('Purchase Create', function () {
    test('authenticated user with permission can view create form', function () {
        $user = createPurchaseUserWithPermission(PermissionEnum::PURCHASES_VIEW, PermissionEnum::PURCHASES_CREATE);

        $this->actingAs($user)
            ->get(route('admin.manage.purchases.create'))
            ->assertOk();
    });

    test('guest is redirected to login', function () {
        $this->get(route('admin.manage.purchases.create'))
            ->assertRedirect(route('login'));
    });

    test('user without create permission is forbidden', function () {
        $user = createPurchaseUserWithPermission(PermissionEnum::PURCHASES_VIEW);

        $this->actingAs($user)
            ->get(route('admin.manage.purchases.create'))
            ->assertForbidden();
    });
});

// ─── Store Validation ─────────────────────────────────────

describe('Purchase Store Validation', function () {
    test('supplier_id is required', function () {
        $user = createPurchaseUserWithPermission(PermissionEnum::PURCHASES_VIEW, PermissionEnum::PURCHASES_CREATE);

        $price = RawMaterialPrice::factory()->create();

        $this->actingAs($user)
            ->postJson(route('admin.manage.purchases.draft_items.store'), [
                'raw_material_price_id' => $price->id,
                'quantity' => 2,
            ])
            ->assertOk();

        $this->actingAs($user)
            ->post(route('admin.manage.purchases.store'), [
                'supplier_id' => '',
                'discount' => 0,
                'shipping_cost' => 0,
            ])
            ->assertSessionHasErrors('supplier_id');
    });

    test('supplier must exist', function () {
        $user = createPurchaseUserWithPermission(PermissionEnum::PURCHASES_VIEW, PermissionEnum::PURCHASES_CREATE);

        $price = RawMaterialPrice::factory()->create();

        $this->actingAs($user)
            ->postJson(route('admin.manage.purchases.draft_items.store'), [
                'raw_material_price_id' => $price->id,
                'quantity' => 2,
            ])
            ->assertOk();

        $this->actingAs($user)
            ->post(route('admin.manage.purchases.store'), [
                'supplier_id' => 99999,
                'discount' => 0,
                'shipping_cost' => 0,
            ])
            ->assertSessionHasErrors('supplier_id');
    });

    test('store fails without draft items', function () {
        $user = createPurchaseUserWithPermission(PermissionEnum::PURCHASES_VIEW, PermissionEnum::PURCHASES_CREATE);
        $supplier = Supplier::factory()->create();

        $this->actingAs($user)
            ->post(route('admin.manage.purchases.store'), [
                'supplier_id' => $supplier->id,
                'discount' => 0,
                'shipping_cost' => 0,
            ])
            ->assertSessionHasErrors('items');
    });
});

// ─── Edit ─────────────────────────────────────────────────

describe('Purchase Edit', function () {
    test('authenticated user with permission can view edit form', function () {
        $user = createPurchaseUserWithPermission(PermissionEnum::PURCHASES_VIEW, PermissionEnum::PURCHASES_CREATE, PermissionEnum::PURCHASES_UPDATE);
        $verifier = createPurchaseVerifierUser();

        $supplier = Supplier::factory()->create();
        $price = RawMaterialPrice::factory()->create(['stock' => 10]);

        $this->actingAs($user)
            ->postJson(route('admin.manage.purchases.draft_items.store'), [
                'raw_material_price_id' => $price->id,
                'quantity' => 2,
            ])
            ->assertOk();

        $this->actingAs($user)
            ->post(route('admin.manage.purchases.store'), [
                'supplier_id' => $supplier->id,
                'discount' => 0,
                'shipping_cost' => 0,
            ]);

        approveLatestPurchaseVerificationRequest($verifier);

        $purchase = Purchase::query()->latest()->firstOrFail();

        $this->actingAs($user)
            ->get(route('admin.manage.purchases.edit', $purchase))
            ->assertOk();
    });

    test('guest is redirected to login', function () {
        $purchase = Purchase::factory()->create();

        $this->get(route('admin.manage.purchases.edit', $purchase))
            ->assertRedirect(route('login'));
    });

    test('user without update permission is forbidden', function () {
        $user = createPurchaseUserWithPermission(PermissionEnum::PURCHASES_VIEW);
        $purchase = Purchase::factory()->create();

        $this->actingAs($user)
            ->get(route('admin.manage.purchases.edit', $purchase))
            ->assertForbidden();
    });
});

// ─── Update Validation ────────────────────────────────────

describe('Purchase Update Validation', function () {
    test('items is required on update', function () {
        $user = createPurchaseUserWithPermission(PermissionEnum::PURCHASES_VIEW, PermissionEnum::PURCHASES_CREATE, PermissionEnum::PURCHASES_UPDATE);
        $verifier = createPurchaseVerifierUser();

        $supplier = Supplier::factory()->create();
        $price = RawMaterialPrice::factory()->create(['stock' => 10]);

        $this->actingAs($user)
            ->postJson(route('admin.manage.purchases.draft_items.store'), [
                'raw_material_price_id' => $price->id,
                'quantity' => 2,
            ])
            ->assertOk();

        $this->actingAs($user)
            ->post(route('admin.manage.purchases.store'), [
                'supplier_id' => $supplier->id,
                'discount' => 0,
                'shipping_cost' => 0,
            ]);

        approveLatestPurchaseVerificationRequest($verifier);

        $purchase = Purchase::query()->latest()->firstOrFail();

        $this->actingAs($user)
            ->put(route('admin.manage.purchases.update', $purchase), [
                'supplier_id' => $supplier->id,
                'discount' => 0,
                'shipping_cost' => 0,
                'items' => [],
            ])
            ->assertSessionHasErrors('items');
    });
});

// ─── Destroy ──────────────────────────────────────────────

describe('Purchase Destroy', function () {
    test('guest cannot delete a purchase', function () {
        $purchase = Purchase::factory()->create();

        $this->delete(route('admin.manage.purchases.destroy', $purchase))
            ->assertRedirect(route('login'));
    });

    test('user without delete permission is forbidden', function () {
        $user = createPurchaseUserWithPermission(PermissionEnum::PURCHASES_VIEW);
        $purchase = Purchase::factory()->create();

        $this->actingAs($user)
            ->delete(route('admin.manage.purchases.destroy', $purchase))
            ->assertForbidden();
    });
});

// ─── Owner Direct Actions ──────────────────────────────────

describe('Owner Direct Actions', function () {
    test('owner can create purchase directly and increments stock', function () {
        $owner = createPurchaseUserWithPermission(
            PermissionEnum::PURCHASES_VIEW,
            PermissionEnum::PURCHASES_CREATE,
            PermissionEnum::OWNER_VERIFICATIONS_VERIFY,
        );

        $supplier = Supplier::factory()->create();
        $price = RawMaterialPrice::factory()->create(['stock' => 10]);

        $this->actingAs($owner)
            ->postJson(route('admin.manage.purchases.draft_items.store'), [
                'raw_material_price_id' => $price->id,
                'quantity' => 3,
            ])
            ->assertOk();

        $this->actingAs($owner)
            ->post(route('admin.manage.purchases.store'), [
                'supplier_id' => $supplier->id,
                'discount' => 0,
                'shipping_cost' => 0,
            ])
            ->assertRedirect(route('admin.manage.purchases.index'));

        $purchase = Purchase::query()->latest()->first();

        expect($purchase)->not->toBeNull();

        $this->assertDatabaseMissing('owner_verification_requests', [
            'subject_id' => $purchase->id,
            'subject_type' => Purchase::class,
        ]);

        expect((float) $price->fresh()->stock)->toBe(13.0);
    });

    test('owner can delete purchase directly and decrements stock', function () {
        $owner = createPurchaseUserWithPermission(
            PermissionEnum::PURCHASES_VIEW,
            PermissionEnum::PURCHASES_CREATE,
            PermissionEnum::PURCHASES_DELETE,
            PermissionEnum::OWNER_VERIFICATIONS_VERIFY,
        );

        $supplier = Supplier::factory()->create();
        $price = RawMaterialPrice::factory()->create(['stock' => 10]);

        $this->actingAs($owner)
            ->postJson(route('admin.manage.purchases.draft_items.store'), [
                'raw_material_price_id' => $price->id,
                'quantity' => 3,
            ])
            ->assertOk();

        $this->actingAs($owner)
            ->post(route('admin.manage.purchases.store'), [
                'supplier_id' => $supplier->id,
                'discount' => 0,
                'shipping_cost' => 0,
            ]);

        expect((float) $price->fresh()->stock)->toBe(13.0);

        $purchase = Purchase::query()->latest()->firstOrFail();

        $this->actingAs($owner)
            ->delete(route('admin.manage.purchases.destroy', $purchase))
            ->assertRedirect(route('admin.manage.purchases.index'));

        expect(Purchase::query()->whereKey($purchase->id)->exists())->toBeFalse();
        expect((float) $price->fresh()->stock)->toBe(10.0);
    });
});

// ─── Purchase Model ────────────────────────────────────────

describe('Purchase Model', function () {
    test('purchase uses soft deletes', function () {
        $purchase = Purchase::factory()->create();

        $purchase->delete();

        expect($purchase->trashed())->toBeTrue();
    });

    test('purchase has amounts cast to integer', function () {
        $purchase = Purchase::factory()->create([
            'subtotal' => 100000,
            'discount' => 5000,
            'shipping_cost' => 10000,
            'total' => 105000,
        ]);

        expect($purchase->subtotal)->toBeInt();
        expect($purchase->discount)->toBeInt();
        expect($purchase->shipping_cost)->toBeInt();
        expect($purchase->total)->toBeInt();
    });

    test('purchase has formatted amount accessors', function () {
        $purchase = Purchase::factory()->create([
            'subtotal' => 100000,
            'discount' => 5000,
            'shipping_cost' => 10000,
            'total' => 105000,
        ]);

        expect($purchase->subtotal_formatted)->toBe('Rp 100.000');
        expect($purchase->discount_formatted)->toBe('Rp 5.000');
        expect($purchase->shipping_cost_formatted)->toBe('Rp 10.000');
        expect($purchase->total_formatted)->toBe('Rp 105.000');
    });

    test('purchase belongs to supplier', function () {
        $supplier = Supplier::factory()->create();
        $purchase = Purchase::factory()->create(['supplier_id' => $supplier->id]);

        expect($purchase->supplier)->not->toBeNull();
        expect($purchase->supplier->id)->toBe($supplier->id);
    });

    test('purchase belongs to created by user', function () {
        $user = User::factory()->create();
        $purchase = Purchase::factory()->create(['created_by_id' => $user->id]);

        expect($purchase->createdBy)->not->toBeNull();
        expect($purchase->createdBy->id)->toBe($user->id);
    });

    test('purchase can have items', function () {
        $purchase = Purchase::factory()->create();
        PurchaseItem::factory()->count(3)->create(['purchase_id' => $purchase->id]);

        expect($purchase->fresh()->items)->toHaveCount(3);
    });
});

// ─── PurchaseItem Model ────────────────────────────────────

describe('PurchaseItem Model', function () {
    test('purchase item has amounts cast to integer', function () {
        $purchase = Purchase::factory()->create();
        $item = PurchaseItem::factory()->create([
            'purchase_id' => $purchase->id,
            'unit_price' => 50000,
            'subtotal' => 100000,
        ]);

        expect($item->unit_price)->toBeInt();
        expect($item->subtotal)->toBeInt();
    });

    test('purchase item has formatted amount accessors', function () {
        $purchase = Purchase::factory()->create();
        $item = PurchaseItem::factory()->create([
            'purchase_id' => $purchase->id,
            'unit_price' => 50000,
            'subtotal' => 100000,
        ]);

        expect($item->unit_price_formatted)->toBe('Rp 50.000');
        expect($item->subtotal_formatted)->toBe('Rp 100.000');
    });

    test('purchase item belongs to purchase', function () {
        $purchase = Purchase::factory()->create();
        $item = PurchaseItem::factory()->create(['purchase_id' => $purchase->id]);

        expect($item->purchase)->not->toBeNull();
        expect($item->purchase->id)->toBe($purchase->id);
    });

    test('purchase item uses soft deletes', function () {
        $purchase = Purchase::factory()->create();
        $item = PurchaseItem::factory()->create(['purchase_id' => $purchase->id]);

        $item->delete();

        expect($item->trashed())->toBeTrue();
    });
});