import io
import re

import pytest
from django.core.management import call_command
from playwright.sync_api import expect

from apps.accounts.models import User
from apps.customers.models import CustomerProfile
from apps.staff.models import OrganizationalUnit, StaffProfile
from apps.tickets.models import Ticket, TicketCategory
from tests.e2e.pages.auth import AuthenticationPage
from tests.e2e.pages.tickets import PublicTicketCreatePage


pytestmark = [pytest.mark.e2e, pytest.mark.django_db(transaction=True)]
PASSWORD = "E2e-public-workflow-2026"


def image_file(name, image_format, color):
    pillow = pytest.importorskip("PIL.Image")
    stream = io.BytesIO()
    pillow.new("RGB", (8, 8), color).save(stream, format=image_format)
    return {
        "name": name,
        "mimeType": "image/jpeg" if image_format == "JPEG" else "image/png",
        "buffer": stream.getvalue(),
    }


def pdf_file(name, marker="one"):
    return {
        "name": name,
        "mimeType": "application/pdf",
        "buffer": (
            "%PDF-1.4\n1 0 obj<</Type/Catalog/Pages 2 0 R>>endobj\n"
            "2 0 obj<</Type/Pages/Count 0/Kids[]>>endobj\n"
            f"% {marker}\n%%EOF\n"
        ).encode(),
    }


@pytest.fixture
def public_workflow(settings, tmp_path):
    settings.MEDIA_ROOT = tmp_path
    call_command("bootstrap")
    customer = User.objects.create_user(
        username="e2e-public-workflow",
        mobile="09120008301",
        password=PASSWORD,
        account_type=User.AccountType.CUSTOMER,
    )
    CustomerProfile.objects.create(user=customer, first_name="مشتری", last_name="مرورگر")
    units = {
        slug: OrganizationalUnit.objects.get(slug=slug)
        for slug in ("sales", "warehouse-loading", "finance")
    }
    categories = {
        "sales_general": TicketCategory.objects.get(slug="sales-general"),
        "sales_secondary": TicketCategory.objects.create(
            unit=units["sales"],
            title="شرایط فروش E2E",
            slug="sales-secondary-e2e",
            is_active=True,
            show_in_customer_form=True,
        ),
        "warehouse": TicketCategory.objects.get(slug="warehouse-loading-general"),
        "finance": TicketCategory.objects.get(slug="finance-general"),
    }
    return customer, units, categories


def open_form(page, live_server, customer):
    AuthenticationPage(page, live_server.url).login_customer(customer, PASSWORD)
    form = PublicTicketCreatePage(page, live_server.url)
    form.open()
    return form


def assert_ticket_record(subject, *, unit, category, expert_name, attachment_names=()):
    ticket = Ticket.objects.select_related("selected_expert__staff_profile").get(subject=subject)
    assert ticket.owning_unit == unit
    assert ticket.assigned_unit == unit
    assert ticket.category == category
    actual_expert = ticket.selected_expert.staff_profile.display_name if ticket.selected_expert_id else "صف عمومی"
    assert actual_expert == expert_name
    attachments = ticket.ticket_messages.get().attachments.order_by("original_name")
    assert set(attachments.values_list("original_name", flat=True)) == set(attachment_names)


def assert_final_ticket_ui(page, *, category, expert_name, attachment_names=()):
    expect(page.locator("#ticket-info")).to_contain_text(category.title)
    expect(page.locator("#ticket-info")).to_contain_text(expert_name)
    for name in attachment_names:
        expect(page.locator("[data-conversation]")).to_contain_text(name)


def test_e2e_07_sales_general_queue_creates_verifiable_ticket(live_server, browser_page, public_workflow):
    customer, units, categories = public_workflow
    subject = "ثبت واقعی در صف عمومی فروش E2E"
    with browser_page() as page:
        form = open_form(page, live_server, customer)
        form.select_unit(units["sales"].pk)
        form.select_category(categories["sales_general"].pk)
        form.select_general_queue()
        form.submit(subject=subject, body="شرح کامل تیکت بدون پیوست")
        assert_final_ticket_ui(page, category=categories["sales_general"], expert_name="صف عمومی")
    assert_ticket_record(
        subject, unit=units["sales"], category=categories["sales_general"], expert_name="صف عمومی"
    )


def test_e2e_08_repeated_staff_changes_store_only_last_choice(live_server, browser_page, public_workflow):
    customer, units, categories = public_workflow
    subject = "آخرین کارشناس انتخابی E2E"
    with browser_page() as page:
        form = open_form(page, live_server, customer)
        form.select_unit(units["sales"].pk)
        form.select_category(categories["sales_general"].pk)
        for name in ("کیمیا غفاری", "زهرا جمالی", "مریم فتوت", "زهرا جمالی"):
            form.select_expert(name)
        form.submit(subject=subject, body="تغییر چندباره کارشناس")
        assert_final_ticket_ui(page, category=categories["sales_general"], expert_name="زهرا جمالی")
    assert_ticket_record(
        subject, unit=units["sales"], category=categories["sales_general"], expert_name="زهرا جمالی"
    )


def test_e2e_subject_stays_empty_for_manual_and_search_routing_until_user_types(
    live_server, browser_page, public_workflow
):
    customer, units, categories = public_workflow
    subject = "موضوع کاملاً دستی E2E"
    with browser_page() as page:
        form = open_form(page, live_server, customer)
        subject_input = page.locator("[data-ticket-subject]")
        page.locator(".ticket-manual-routing summary").click()
        expect(form.unit).to_be_visible()
        unit_box = form.unit.bounding_box()
        category_box = form.category.bounding_box()
        assert unit_box and category_box
        assert abs(unit_box["y"] - category_box["y"]) < 2
        assert unit_box["x"] + unit_box["width"] <= category_box["x"] or category_box["x"] + category_box["width"] <= unit_box["x"]
        expect(subject_input).to_have_value("")
        expect(subject_input).to_have_attribute("required", "")
        form.select_unit(units["finance"].pk)
        form.select_category(categories["finance"].pk)
        expect(subject_input).to_have_value("")
        form.select_search_result("عمومی فروش", "عمومی فروش")
        expect(form.unit).to_have_value(str(units["sales"].pk))
        expect(subject_input).to_have_value("")
        subject_input.fill(subject)
        form.select_unit(units["finance"].pk)
        expect(subject_input).to_have_value(subject)
        form.select_unit(units["sales"].pk)
        form.select_category(categories["sales_general"].pk)
        form.select_general_queue()
        form.submit(subject=subject, body="موضوع فقط توسط کاربر وارد شده است")
        assert_final_ticket_ui(page, category=categories["sales_general"], expert_name="صف عمومی")
    assert_ticket_record(
        subject, unit=units["sales"], category=categories["sales_general"], expert_name="صف عمومی"
    )


def test_e2e_customer_wizard_validation_preview_edit_and_floating_submit(
    live_server, browser_page, public_workflow
):
    customer, units, categories = public_workflow
    subject = "بازبینی مرحله‌ای و ویرایش E2E"
    with browser_page() as page:
        page.set_viewport_size({"width": 390, "height": 640})
        form = open_form(page, live_server, customer)
        expect(page.locator('[data-wizard-step="1"]')).to_be_visible()
        expect(page.locator('[data-wizard-step="2"]')).to_be_hidden()
        expect(page.locator('[data-ticket-search-results]')).to_be_hidden()

        page.locator('[data-wizard-step="1"] [data-wizard-next]').click()
        error = page.locator('[data-wizard-error="1"]')
        expect(error).to_be_visible()
        expect(error).to_be_in_viewport()
        expect(page.locator('[data-ticket-subject]')).to_have_attribute("aria-invalid", "true")
        expect(form.category).to_be_visible()
        assert page.evaluate("document.activeElement.matches('[aria-invalid=\"true\"]:not(:disabled)')")
        expect(page.locator(".is-guided-field")).to_have_count(1)

        form.select_search_result("عمومی فروش", "عمومی فروش")
        expect(page.locator('[data-ticket-subject]')).to_have_value("")
        page.locator('[data-wizard-step="1"] [data-wizard-next]').click()
        assert page.evaluate("document.activeElement === document.querySelector('[data-ticket-subject]')")
        expect(page.locator('.ticket-subject-field')).to_have_class(re.compile(r"is-guided-field"))
        page.locator('[data-ticket-subject]').fill(subject)
        expect(page.locator('[data-ticket-subject]')).to_have_value(subject)
        page.locator('[data-wizard-step="1"] [data-wizard-next]').click()
        page.locator('[data-wizard-step="2"] [data-wizard-next]').click()
        page.locator('[data-wizard-step="3"] [data-wizard-next]').click()
        page.locator('textarea[name="body"]').fill("شرح خوانا برای پیش‌نمایش مرحله پنجم")
        page.locator('[data-wizard-step="4"] [data-wizard-next]').click()

        expect(page.locator('[data-wizard-step="5"]')).to_be_visible()
        expect(page.locator('[data-review-subject]')).to_have_text(subject)
        expect(page.locator('[data-review-body]')).to_contain_text("شرح خوانا")
        final_submit = page.get_by_role("button", name="ثبت و ارسال نهایی")
        expect(final_submit).to_be_visible()
        submit_box = final_submit.bounding_box()
        assert submit_box and submit_box["y"] + submit_box["height"] <= page.viewport_size["height"]
        assert page.locator('[data-review-subject]').evaluate("node => parseFloat(getComputedStyle(node).fontSize)") >= 16
        assert page.locator('[data-review-body]').evaluate("node => parseFloat(getComputedStyle(node).fontSize)") >= 14

        page.locator('[data-wizard-edit="1"]').click()
        expect(page.locator('[data-ticket-subject]')).to_have_value(subject)
        expect(page.locator('[data-ticket-unit]')).to_have_value(str(units["sales"].pk))
        expect(page.locator('[data-ticket-category]')).to_have_value(str(categories["sales_general"].pk))


def test_e2e_customer_wizard_auto_stops_voice_and_submits_audio_only_ticket(
    live_server, browser_page, public_workflow
):
    customer, units, categories = public_workflow
    subject = "ثبت تیکت فقط با پیام صوتی E2E"
    with browser_page() as page:
        page.add_init_script(
            """
            window.__microphoneTrackStops = 0;
            Object.defineProperty(navigator, 'mediaDevices', {
              configurable: true,
              value: {getUserMedia: async () => ({getTracks: () => [{stop: () => {window.__microphoneTrackStops += 1;}}]})},
            });
            class FakeMediaRecorder {
              constructor(stream, options = {}) {this.stream = stream; this.mimeType = options.mimeType || 'audio/wav'; this.state = 'inactive';}
              start() {this.state = 'recording';}
              pause() {this.state = 'paused';}
              resume() {this.state = 'recording';}
              stop() {
                this.state = 'inactive';
                const wav = new Uint8Array([
                  82,73,70,70,40,0,0,0,87,65,86,69,102,109,116,32,
                  16,0,0,0,1,0,1,0,68,172,0,0,136,88,1,0,
                  2,0,16,0,100,97,116,97,4,0,0,0,0,0,0,0,
                ]);
                this.ondataavailable?.({data: new Blob([wav], {type: this.mimeType})});
                setTimeout(() => this.onstop?.(), 0);
              }
              static isTypeSupported(type) {return type === 'audio/wav';}
            }
            Object.defineProperty(window, 'MediaRecorder', {configurable: true, value: FakeMediaRecorder});
            """
        )
        form = open_form(page, live_server, customer)
        form.select_unit(units["sales"].pk)
        form.select_category(categories["sales_general"].pk)
        form.select_general_queue()
        page.locator('[data-ticket-subject]').fill(subject)
        page.locator('[data-wizard-step="1"] [data-wizard-next]').click()
        page.locator('[data-wizard-step="2"] [data-wizard-next]').click()
        page.locator('[data-wizard-step="3"] [data-wizard-next]').click()
        expect(page.locator('[data-wizard-step="4"]')).to_be_visible()

        page.get_by_role("button", name="شروع ضبط صدا").click()
        expect(page.locator('[data-voice-live]')).to_be_visible()
        page.get_by_role("button", name="مشاهده پیش‌نمایش").click()
        expect(page.locator('[data-wizard-step="5"]')).to_be_visible()
        expect(page.locator('[data-review-audio]')).to_be_visible()
        assert page.evaluate("window.__microphoneTrackStops") == 1

        with page.expect_navigation(wait_until="domcontentloaded"):
            page.get_by_role("button", name="ثبت و ارسال نهایی").click()
        expect(page).to_have_url(re.compile(r"/tickets/(?!new/)[^/]+/$"))

    ticket = Ticket.objects.get(subject=subject)
    assert ticket.owning_unit == units["sales"]
    assert ticket.category == categories["sales_general"]
    attachments = list(ticket.ticket_messages.get().attachments.all())
    assert len(attachments) == 1
    assert attachments[0].mime_type.startswith("audio/")
    assert attachments[0].original_name.startswith("voice-")


def test_e2e_experts_follow_configured_numeric_order(live_server, browser_page, public_workflow):
    customer, units, _ = public_workflow
    configured = {
        "زهرا جمالی": 10,
        "مریم فتوت": 20,
        "کیمیا غفاری": 30,
        "مرتضی سخائی فرد": 40,
    }
    for name, order in configured.items():
        StaffProfile.objects.filter(primary_unit=units["sales"], display_name=name).update(sort_order=order)
    with browser_page() as page:
        form = open_form(page, live_server, customer)
        form.select_unit(units["sales"].pk)
        names = form.expert_picker.locator(
            "label.expert-card:not([data-general-queue]) strong"
        ).all_text_contents()
        assert names == ["زهرا جمالی", "مریم فتوت", "کیمیا غفاری", "مرتضی سخائی فرد"]


@pytest.mark.parametrize(
    "suffix,images,documents,expected",
    [
        ("jpg", [image_file("photo.jpg", "JPEG", "red")], [], ["photo.jpg"]),
        ("pdf", [], [pdf_file("document.pdf")], ["document.pdf"]),
        (
            "mixed",
            [image_file("first.jpg", "JPEG", "blue"), image_file("second.png", "PNG", "green")],
            [pdf_file("combined.pdf")],
            ["first.jpg", "second.png", "combined.pdf"],
        ),
        (
            "multi-file",
            [],
            [pdf_file("first.pdf", "first"), pdf_file("second.pdf", "second")],
            ["first.pdf", "second.pdf"],
        ),
    ],
)
def test_e2e_09_10_11_attachment_variants_are_saved_and_rendered(
    live_server, browser_page, public_workflow, suffix, images, documents, expected
):
    customer, units, categories = public_workflow
    subject = f"پیوست واقعی {suffix} E2E"
    with browser_page() as page:
        form = open_form(page, live_server, customer)
        form.select_unit(units["sales"].pk)
        form.select_category(categories["sales_general"].pk)
        form.select_general_queue()
        if images:
            form.upload_gallery(images)
        if documents:
            form.upload_documents(documents, total_count=len(images) + len(documents))
        form.submit(subject=subject, body="بررسی ذخیره و نمایش تمام پیوست‌ها")
        assert_final_ticket_ui(
            page, category=categories["sales_general"], expert_name="صف عمومی", attachment_names=expected
        )
    assert_ticket_record(
        subject,
        unit=units["sales"],
        category=categories["sales_general"],
        expert_name="صف عمومی",
        attachment_names=expected,
    )


def test_e2e_11_removed_attachment_is_not_submitted(live_server, browser_page, public_workflow):
    customer, units, categories = public_workflow
    subject = "حذف پیوست پیش از ثبت E2E"
    keep = image_file("keep.png", "PNG", "yellow")
    remove = pdf_file("remove.pdf")
    with browser_page() as page:
        form = open_form(page, live_server, customer)
        form.select_unit(units["sales"].pk)
        form.select_category(categories["sales_general"].pk)
        form.upload_gallery([keep])
        form.upload_documents([remove], total_count=2)
        form.remove_attachment("remove.pdf")
        form.submit(subject=subject, body="فقط تصویر باید ذخیره شود")
        assert_final_ticket_ui(
            page, category=categories["sales_general"], expert_name="صف عمومی", attachment_names=["keep.png"]
        )
    assert_ticket_record(
        subject,
        unit=units["sales"],
        category=categories["sales_general"],
        expert_name="صف عمومی",
        attachment_names=["keep.png"],
    )


def test_e2e_12_sequential_unit_staff_category_and_attachment_state(live_server, browser_page, public_workflow):
    customer, units, categories = public_workflow
    subject = "مدیریت وضعیت متوالی فرم E2E"
    image_one = image_file("state-one.jpg", "JPEG", "purple")
    image_two = image_file("state-two.png", "PNG", "orange")
    removed_pdf = pdf_file("state-remove.pdf")
    with browser_page() as page:
        form = open_form(page, live_server, customer)
        form.select_unit(units["sales"].pk)
        form.select_expert("کیمیا غفاری")
        form.select_category(categories["sales_secondary"].pk)
        form.upload_gallery([image_one])
        form.upload_documents([removed_pdf], total_count=2)
        form.select_unit(units["finance"].pk)
        expect(form.expert_picker).not_to_contain_text("کیمیا غفاری")
        expect(form.queue).to_contain_text("صف عمومی مالی / حسابداری")
        form.select_category(categories["finance"].pk)
        form.select_unit(units["sales"].pk)
        form.select_category(categories["sales_general"].pk)
        form.select_expert("کیمیا غفاری")
        form.select_expert("زهرا جمالی")
        form.select_expert("کیمیا غفاری")
        form.remove_attachment("state-remove.pdf")
        form.upload_gallery([image_two], total_count=2)
        expect(form.file_preview.locator(".file-chip")).to_have_count(2)
        form.submit(subject=subject, body="فرم پس از تغییرات متوالی سالم ماند")
        assert_final_ticket_ui(
            page,
            category=categories["sales_general"],
            expert_name="کیمیا غفاری",
            attachment_names=["state-one.jpg", "state-two.png"],
        )
    assert_ticket_record(
        subject,
        unit=units["sales"],
        category=categories["sales_general"],
        expert_name="کیمیا غفاری",
        attachment_names=["state-one.jpg", "state-two.png"],
    )