import json
import subprocess
from pathlib import Path

import pytest

from tests.dashboard_bundle import dashboard


ROOT = Path(__file__).parents[1]
UPDATE_FOLLOW_UP = ROOT / "frontend" / "update-follow-up.js"
CREATE_ISSUE_SHEET = ROOT / "frontend" / "create-issue-sheet.js"


def run_node(script: str) -> dict:
    result = subprocess.run(
        ["node", "-e", script], capture_output=True, text=True, timeout=10
    )
    assert result.returncode == 0, result.stderr
    return json.loads(result.stdout)


def test_follow_up_derives_repository_editable_title_and_canonical_context():
    script = f"""
const createFollowUp = require({json.dumps(str(UPDATE_FOLLOW_UP))});
const controller = createFollowUp();
process.stdout.write(JSON.stringify(controller.draft({{
  repository: 'stackchain/stackchain-dashboard',
  title: 'Fix mobile queue',
  subject_type: 'Pull',
  url: 'https://forge.example/git/stackchain/stackchain-dashboard/pulls/42',
  latest_comment: {{ body: 'Please preserve the unread state.   Ship this on mobile.' }}
}})));
"""
    assert run_node(script) == {
        "repository": "stackchain/stackchain-dashboard",
        "title": "Follow up: Fix mobile queue",
        "body": (
            "Source: https://forge.example/git/stackchain/stackchain-dashboard/pulls/42\n\n"
            "Latest context:\n> Please preserve the unread state. Ship this on mobile."
        ),
    }


def test_follow_up_rejects_unsafe_repository_and_noncanonical_source_url():
    script = f"""
const createFollowUp = require({json.dumps(str(UPDATE_FOLLOW_UP))});
const controller = createFollowUp();
process.stdout.write(JSON.stringify(controller.draft({{
  repository: '../admin', title: '<script>alert(1)</script>',
  url: 'javascript:alert(1)', latest_comment: {{body: 'x'.repeat(12000)}}
}})));
"""
    output = run_node(script)
    assert output["repository"] == ""
    assert output["title"] == "Follow up: <script>alert(1)</script>"
    assert "javascript:" not in output["body"]
    assert len(output["body"]) <= 9500


def test_follow_up_staging_never_silently_overwrites_an_existing_capture():
    script = f"""
const createCapture = require({json.dumps(str(CREATE_ISSUE_SHEET))});
const values = new Map();
const storage = {{
  getItem:key => values.has(key) ? values.get(key) : null,
  setItem:(key,value) => values.set(key,value), removeItem:key => values.delete(key)
}};
const capture = createCapture({{fetchJson:async()=>[], storage}});
capture.saveDraft({{repository:'o/existing', title:'Existing draft', body:'Keep me'}});
const state = capture.stageFollowUp({{repository:'o/new', title:'Follow up', body:'Source: https://example.test/1'}});
const before = capture.loadDraft();
const accepted = capture.acceptFollowUp();
process.stdout.write(JSON.stringify({{state, before, accepted, pending:capture.pendingFollowUp()}}));
"""
    assert run_node(script) == {
        "state": {"status": "conflict"},
        "before": {
            "repository": "o/existing",
            "title": "Existing draft",
            "body": "Keep me",
            "labelIds": [],
        },
        "accepted": {
            "repository": "o/new",
            "title": "Follow up",
            "body": "Source: https://example.test/1",
            "labelIds": [],
        },
        "pending": None,
    }


@pytest.mark.anyio
async def test_update_sheet_wires_phone_safe_follow_up_without_marking_read():
    html = await dashboard()

    assert '<script src="static/update-follow-up.js"></script>' in html
    assert 'id="create-update-follow-up"' in html
    assert '>Create follow-up</button>' in html
    assert "issueCapture.stageFollowUp(updateFollowUp.draft(selectedUpdateDetail))" in html
    assert "qs('#create-update-follow-up').addEventListener('click'" in html
    assert "markNotificationRead" not in html.split("qs('#create-update-follow-up').addEventListener('click'", 1)[1].split("});", 1)[0]
    assert '.update-sheet-actions button, .update-sheet-actions a { min-height:44px;' in html