import os
from pathlib import Path

import pytest

if os.getenv("STACKCHAIN_RUN_RELEASE_E2E") != "1":
    pytest.skip("packaged mobile Following journey runs only in its gated CI job", allow_module_level=True)
pytest.importorskip("playwright.sync_api")
from playwright.sync_api import expect, sync_playwright


ROOT = Path(__file__).parents[2]
FRONTEND = ROOT / "frontend"


@pytest.mark.parametrize("viewport", [
    {"width": 320, "height": 568},
    {"width": 390, "height": 844},
])
def test_following_queue_is_phone_usable_at_narrow_viewport(viewport):
    with sync_playwright() as playwright:
        browser = playwright.chromium.launch(headless=True)
        page = browser.new_page(viewport=viewport)
        page.set_content((FRONTEND / "index.html").read_text())
        page.add_style_tag(path=FRONTEND / "dashboard.css")
        page.add_script_tag(path=FRONTEND / "search-preview.js")
        page.add_script_tag(path=FRONTEND / "following.js")

        row = page.locator('[data-mobile-queue="following"]')
        expect(row).to_have_count(1)
        expect(row).to_contain_text("Issues and pull requests you watch")
        page.evaluate("""() => {
          globalThis.fetch = async () => ({
            ok:true,
            json:async () => ({revision:1,items:[{
              repository:'stackchain/api', kind:'pull', number:42,
              title:'Changed pull request with a long mobile title', state:'open',
              updated_at:'2026-08-23T05:00:00Z', has_unseen_change:true
            }]})
          });
          globalThis.followingReleaseQueue = attachFollowing(() => {});
          globalThis.followingReleaseQueue.open();
        }""")

        expect(page.locator("#following-sheet")).to_be_visible()
        expect(page.locator(".following-card")).to_be_visible()
        expect(page.locator(".following-card")).to_contain_text("New activity")
        expect(page.locator(".following-card")).to_contain_text("Pull request")
        expect(page.locator("#review-following")).to_have_text("Review new activity")
        assert page.locator("#review-following").bounding_box()["height"] >= 44
        assert page.locator(".following-card").bounding_box()["height"] >= 44
        assert page.locator("#close-following").bounding_box()["height"] >= 44

        retire = page.locator("#watch-search-result")
        page.evaluate("""() => {
          document.querySelector('#following-sheet').close();
          document.querySelector('#search-preview').classList.add('open');
          const button = document.querySelector('#watch-search-result');
          renderSearchPreviewWatch(
            {repository:'stackchain/api', number:42, kind:'issue', state:'closed',
             following:true, watching:true},
            {status:'ready'},
            button
          );
        }""")
        expect(retire).to_be_visible()
        expect(retire).to_have_text("Stop watching & next")
        assert retire.bounding_box()["height"] >= 44
        page.evaluate("""() => renderSearchPreviewWatch(
          {repository:'stackchain/api', number:42, kind:'pull', state:'open', watching:false},
          {status:'ready'}, document.querySelector('#watch-search-result'))""")
        expect(retire).to_have_text("Watch pull request")
        assert retire.bounding_box()["height"] >= 44
        overflow = page.evaluate("document.documentElement.scrollWidth > document.documentElement.clientWidth")
        assert overflow is False
        browser.close()