import json
import subprocess
from pathlib import Path


WEEK_CALENDAR = Path(__file__).parents[1] / "frontend" / "week-calendar.js"
INDEX = Path(__file__).parents[1] / "frontend" / "index.html"
DASHBOARD = Path(__file__).parents[1] / "frontend" / "dashboard.js"
BUNDLE = Path(__file__).parents[1] / "src" / "frontend_bundle.py"


def run_node(source: str):
    completed = subprocess.run(["node", "-e", source], capture_output=True, text=True)
    assert completed.returncode == 0, completed.stderr
    return json.loads(completed.stdout)


def test_week_calendar_builds_ordered_local_time_blocks_and_serializes_opaque_events():
    plan = {
        "timezone": "America/New_York",
        "revision": 7,
        "days": [{
            "plan_date": "2026-08-21",
            "ids": ["issue:stackchain/dashboard:12:", "pull:stackchain/api:7:"],
            "capacity_minutes": 120,
            "estimates": {
                "issue:stackchain/dashboard:12:": 45,
                "pull:stackchain/api:7:": 30,
            },
        }],
    }
    items = {
        "issue:stackchain/dashboard:12:": {
            "id": 401,
            "title": "Plan, ship; verify",
            "repository": "stackchain/dashboard",
            "number": 12,
            "url": "https://forge.alexanderwhitestone.com/git/stackchain/stackchain-dashboard/issues/12",
        },
        "pull:stackchain/api:7:": {
            "title": "API release",
            "repository": "stackchain/api",
            "number": 7,
            "url": "https://forge.alexanderwhitestone.com/git/stackchain/api/pulls/7",
        },
    }
    source = f"""
const calendar=require({json.dumps(str(WEEK_CALENDAR))});
const plan={json.dumps(plan)}, items={json.dumps(items)};
const blocks=calendar.buildWeekBlocks(plan, {{'2026-08-21':'09:00'}}, id=>items[id]);
const text=calendar.serializeWeekCalendar(blocks, {{timezone:plan.timezone,revision:plan.revision,generatedAt:'20260820T120000Z'}});
console.log(JSON.stringify({{blocks,text}}));
"""

    result = run_node(source)
    assert [(block["start_time"], block["end_time"]) for block in result["blocks"]] == [
        ("09:00", "09:45"), ("09:45", "10:15")
    ]
    text = result["text"]
    assert "TZID:America/New_York" in text
    assert "DTSTART;TZID=America/New_York:20260821T090000" in text
    assert "DTEND;TZID=America/New_York:20260821T094500" in text
    assert "DTSTART;TZID=America/New_York:20260821T094500" in text
    assert "DTEND;TZID=America/New_York:20260821T101500" in text
    assert "TRANSP:OPAQUE" in text
    assert "UID:week-7-20260821-issue-stackchain-dashboard-12@stackchain" in text
    assert "SUMMARY:Plan\\, ship\\; verify" in text
    unfolded = text.replace("\r\n ", "")
    assert "URL:https://forge.alexanderwhitestone.com/git/stackchain/stackchain-dashboard/issues/12" in unfolded


def test_week_calendar_excludes_unselected_items_and_downloads_when_native_share_is_unavailable():
    source = f"""
const calendar=require({json.dumps(str(WEEK_CALENDAR))});
const plan={{timezone:'UTC',revision:2,days:[{{plan_date:'2026-08-21',ids:['one','two'],capacity_minutes:60,estimates:{{one:20,two:25}}}}]}};
const items={{one:{{title:'Private',repository:'r',number:1,url:'https://forge/r/1'}},two:{{title:'Public',repository:'r',number:2,url:'https://forge/r/2'}}}};
const blocks=calendar.buildWeekBlocks(plan,{{'2026-08-21':'13:00'}},id=>items[id],new Set(['two']));
class FakeFile {{constructor(parts,name,options){{this.parts=parts;this.name=name;this.type=options.type;}}}}
const clicks=[],revoked=[];
(async()=>{{
 const result=await calendar.deliverWeekCalendar({{text:'calendar',filename:'week.ics',navigator:{{}},FileCtor:FakeFile,
  document:{{createElement:()=>({{click(){{clicks.push([this.download,this.href]);}}}})}},
  urlApi:{{createObjectURL:()=> 'blob:week',revokeObjectURL:value=>revoked.push(value)}}}});
 console.log(JSON.stringify({{blocks,result,clicks,revoked}}));
}})();
"""

    result = run_node(source)
    assert [block["id"] for block in result["blocks"]] == ["two"]
    assert result["blocks"][0]["start_time"] == "13:00"
    assert result["result"] == "downloaded"
    assert result["clicks"] == [["week.ics", "blob:week"]]
    assert result["revoked"] == ["blob:week"]


def test_week_calendar_handoff_is_wired_into_confirmation_with_mobile_privacy_controls():
    index = INDEX.read_text()
    dashboard = DASHBOARD.read_text()
    bundle = BUNDLE.read_text()

    assert '<script src="static/week-calendar.js"></script>' in index
    assert 'id="week-calendar-handoff"' in index
    assert 'id="week-calendar-days"' in index
    assert 'id="share-week-calendar"' in index
    assert 'id="back-to-week-review-from-calendar"' in index
    assert "Titles, references, dates, and times are included" in index
    assert "mountWeekCalendarHandoff" in WEEK_CALENDAR.read_text()
    assert "weekCalendar.open(weekPlan.state())" in dashboard
    assert "weekCalendar.close()" in dashboard
    assert '"static/week-calendar.js", "static/week-plan.js"' in bundle