"""Dashboard/API tests: job lifecycle, pipeline status, photo upload —
stage functions are injected so nothing slow or networked ever runs."""

from __future__ import annotations

import threading
import time

import typer
from fastapi.testclient import TestClient

from bggpipe.config import Config
from bggpipe.jobs import JobRunner
from bggpipe.webreview import create_app


def _cfg(tmp_path) -> Config:
    cfg = Config(data_dir=tmp_path / "data", photos_dir=tmp_path / "photos")
    cfg.photos_dir.mkdir(parents=True)
    cfg.data_dir.mkdir(parents=True)
    return cfg


def _app(cfg, stages=None, jobs=None) -> TestClient:
    return TestClient(create_app(cfg, stages=stages or {}, jobs=jobs))


# -- JobRunner ----------------------------------------------------------


def test_job_captures_output_and_finishes():
    runner = JobRunner()

    def stage():
        typer.echo("line one")
        typer.echo("line two")

    assert runner.start("extract", stage)
    runner.wait()
    snap = runner.snapshot()
    assert snap["status"] == "done"
    assert snap["log"] == ["line one", "line two"]


def test_job_failure_is_reported_not_swallowed():
    runner = JobRunner()
    runner.start("resolve", lambda: (_ for _ in ()).throw(RuntimeError("boom")))
    runner.wait()
    snap = runner.snapshot()
    assert snap["status"] == "failed"
    assert "RuntimeError: boom" in snap["error"]


def test_typer_exit_code_counts_as_failure():
    runner = JobRunner()

    def stage():
        raise typer.Exit(code=1)

    runner.start("diff", stage)
    runner.wait()
    assert runner.snapshot()["status"] == "failed"


def test_single_slot_rejects_second_job():
    runner = JobRunner()
    release = threading.Event()
    assert runner.start("extract", release.wait)
    assert not runner.start("resolve", lambda: None)  # slot busy
    release.set()
    runner.wait()
    assert runner.start("resolve", lambda: None)  # slot free again
    runner.wait()


# -- /api/run + /api/job ------------------------------------------------


def test_run_stage_lifecycle_via_api(tmp_path):
    cfg = _cfg(tmp_path)
    ran = []
    jobs = JobRunner()
    web = _app(cfg, stages={"extract": lambda: ran.append(1)}, jobs=jobs)

    res = web.post("/api/run/extract")
    assert res.status_code == 200
    jobs.wait()
    assert ran == [1]
    assert web.get("/api/job").json()["status"] == "done"


def test_unknown_stage_404s(tmp_path):
    web = _app(_cfg(tmp_path))
    assert web.post("/api/run/frobnicate").status_code == 404


def test_busy_runner_409s(tmp_path):
    cfg = _cfg(tmp_path)
    release = threading.Event()
    jobs = JobRunner()
    web = _app(
        cfg, stages={"extract": release.wait, "resolve": lambda: None}, jobs=jobs
    )
    assert web.post("/api/run/extract").status_code == 200
    assert web.post("/api/run/resolve").status_code == 409
    release.set()
    jobs.wait()


def test_upload_defaults_to_dry_run(tmp_path):
    cfg = _cfg(tmp_path)
    calls = []
    jobs = JobRunner()

    def upload(dry_run=True, limit=None):
        calls.append({"dry_run": dry_run, "limit": limit})

    web = _app(cfg, stages={"upload": upload}, jobs=jobs)
    web.post("/api/run/upload")  # no body: the safe direction
    jobs.wait()
    web.post("/api/run/upload", json={"dry_run": False, "limit": 2})
    jobs.wait()
    assert calls == [
        {"dry_run": True, "limit": None},
        {"dry_run": False, "limit": 2},
    ]


# -- /api/pipeline ------------------------------------------------------


def test_pipeline_reports_counts_and_never_values(tmp_path, monkeypatch):
    monkeypatch.setenv("BGG_USERNAME", "supersecretname")
    monkeypatch.delenv("BGG_API_TOKEN", raising=False)
    cfg = _cfg(tmp_path)
    (cfg.photos_dir / "a.jpg").write_bytes(b"x")
    web = _app(cfg)
    payload = web.get("/api/pipeline").json()
    assert payload["photos"] == 1
    assert payload["env"]["BGG_USERNAME"] is True
    assert payload["env"]["BGG_API_TOKEN"] is False
    assert "supersecretname" not in web.get("/api/pipeline").text


def test_pipeline_flags_stub_data(tmp_path):
    cfg = _cfg(tmp_path)
    (cfg.data_dir / "STUB_DATA.marker").write_text("stub")
    assert _app(cfg).get("/api/pipeline").json()["stub_data"] is True


# -- /api/photos --------------------------------------------------------


def test_photo_upload_saves_and_invalidates_raw_cache(tmp_path):
    cfg = _cfg(tmp_path)
    cfg.extract_raw_dir.mkdir(parents=True)
    stale = cfg.extract_raw_dir / "shelf.jpg.json"
    stale.write_text("{}")
    web = _app(cfg)
    res = web.post(
        "/api/photos", files={"files": ("shelf.jpg", b"\xff\xd8jpegdata", "image/jpeg")}
    )
    assert res.status_code == 200
    assert (cfg.photos_dir / "shelf.jpg").read_bytes() == b"\xff\xd8jpegdata"
    assert not stale.exists()  # re-upload means re-extract


def test_photo_upload_rejects_non_photos_and_path_tricks(tmp_path):
    cfg = _cfg(tmp_path)
    web = _app(cfg)
    res = web.post("/api/photos", files={"files": ("notes.txt", b"hi", "text/plain")})
    assert res.status_code == 400
    res = web.post(
        "/api/photos",
        files={"files": ("../../escape.jpg", b"x", "image/jpeg")},
    )
    if res.status_code == 200:  # client may strip the path; the name must be bare
        assert (cfg.photos_dir / "escape.jpg").exists()
        assert not (tmp_path / "escape.jpg").exists()


# -- pages --------------------------------------------------------------


def test_dashboard_and_review_pages_serve(tmp_path):
    web = _app(_cfg(tmp_path))
    assert "Pipeline" in web.get("/").text
    assert "bggpipe" in web.get("/review").text


# -- design system + navigation -----------------------------------------


def test_stylesheet_is_served_and_linked_by_both_pages(tmp_path):
    web = _app(_cfg(tmp_path))
    css = web.get("/static/app.css")
    assert css.status_code == 200
    assert css.headers["content-type"].startswith("text/css")
    assert "--accent" in css.text  # the token layer, not an empty file
    for path in ("/", "/review"):
        assert 'href="/static/app.css"' in web.get(path).text


def test_both_pages_carry_navigation_and_skip_link(tmp_path):
    web = _app(_cfg(tmp_path))
    for path, current in (("/", 'href="/"'), ("/review", 'href="/review"')):
        html = web.get(path).text
        assert 'nav aria-label="Primary"' in html
        assert f'<a {current} aria-current="page"' in html.replace("\n", " ") or (
            current in html and 'aria-current="page"' in html
        )
        assert 'class="skip"' in html


def test_activity_region_announces_politely(tmp_path):
    html = _app(_cfg(tmp_path)).get("/").text
    assert 'aria-live="polite"' in html


# -- six-page shell -----------------------------------------------------


def test_every_page_serves_with_shared_shell(tmp_path):
    web = _app(_cfg(tmp_path))
    for path, marker in (
        ("/", "Pipeline"),
        ("/photos", "Reshoot"),
        ("/review", "Review"),
        ("/titles", "Titles"),
        ("/queue", "Upload queue"),
        ("/library", "Library"),
    ):
        html = web.get(path).text
        assert marker in html, path
        assert 'nav aria-label="Primary"' in html, path
        assert 'aria-current="page"' in html, path
        assert "logo-full.jpg" in html, path  # Juniper's portrait in the rail
        assert "art by Juniper" in html, path
        assert "trademarks of" in html, path  # attribution notice


def test_photos_list_reports_extraction_state(tmp_path):
    import json as _json

    cfg = _cfg(tmp_path)
    (cfg.photos_dir / "done.jpg").write_bytes(b"x")
    (cfg.photos_dir / "fresh.jpg").write_bytes(b"x")
    cfg.extract_raw_dir.mkdir(parents=True)
    (cfg.extract_raw_dir / "done.jpg.json").write_text(
        _json.dumps({"titles": [{"title_raw": "Catan"}], "unidentified": [{}, {}]})
    )
    listing = {p["name"]: p for p in _app(cfg).get("/api/photos-list").json()}
    assert listing["done.jpg"] == {
        "name": "done.jpg",
        "extracted": True,
        "titles": 1,
        "unidentified": 2,
    }
    assert listing["fresh.jpg"]["extracted"] is False


def test_queue_endpoint_serves_all_three_ledgers(tmp_path):
    cfg = _cfg(tmp_path)
    (cfg.to_add_path).write_text("bgg_id,bgg_name\n13,Catan\n")
    q = _app(cfg).get("/api/queue").json()
    assert q["to_add"] == [{"bgg_id": "13", "bgg_name": "Catan"}]
    assert q["to_update"] == [] and q["log"] == []


def test_library_serves_games_sorted_or_empty(tmp_path):
    import json as _json

    cfg = _cfg(tmp_path)
    web = _app(cfg)
    assert web.get("/api/library").json() == []
    cfg.games_path.write_text(
        _json.dumps(
            {
                "13": {"name": "Catan", "year": 1995},
                "266192": {"name": "Wingspan", "year": 2019},
                "1": {"name": "aliens", "year": 2000},
            }
        )
    )
    names = [g["name"] for g in web.get("/api/library").json()]
    assert names == ["aliens", "Catan", "Wingspan"]  # casefold sort


def test_pipeline_reports_reshoot_count(tmp_path):
    import json as _json

    cfg = _cfg(tmp_path)
    cfg.unidentified_path.write_text(
        _json.dumps({"a.jpg": [{"location": "top shelf"}]})
    )
    assert _app(cfg).get("/api/pipeline").json()["reshoot"] == 1


def test_photos_list_tolerates_bare_array_raw_cache(tmp_path):
    import json as _json

    cfg = _cfg(tmp_path)
    (cfg.photos_dir / "old.jpg").write_bytes(b"x")
    cfg.extract_raw_dir.mkdir(parents=True)
    (cfg.extract_raw_dir / "old.jpg.json").write_text(
        _json.dumps([{"title_raw": "Catan"}, {"title_raw": "Risk"}])
    )
    (item,) = _app(cfg).get("/api/photos-list").json()
    assert item["extracted"] is True and item["titles"] == 2


def test_non_photo_files_are_invisible(tmp_path):
    cfg = _cfg(tmp_path)
    (cfg.photos_dir / "shelf.jpg").write_bytes(b"x")
    (cfg.photos_dir / ".DS_Store").write_bytes(b"junk")
    web = _app(cfg)
    assert [p["name"] for p in web.get("/api/photos-list").json()] == ["shelf.jpg"]
    assert web.get("/photos/.DS_Store").status_code == 404


# -- jobs: live-progress and termination contracts ----------------------


def test_running_snapshot_shows_partial_line_then_finishes():
    import typer as _typer

    runner = JobRunner()
    release = threading.Event()

    def stage():
        print("progress: 40%", end="", flush=True)  # no newline yet
        release.wait()
        _typer.echo(" done")

    runner.start("extract", stage)
    for _ in range(100):
        snap = runner.snapshot()
        if snap["log"]:
            break
        time.sleep(0.01)
    assert snap["status"] == "running"
    assert snap["log"] == ["progress: 40%"]
    release.set()
    runner.wait()
    assert runner.snapshot()["log"] == ["progress: 40% done"]


def test_log_serves_last_200_lines_and_buffer_is_bounded():
    import typer as _typer

    from bggpipe.jobs import MAX_LOG_LINES

    runner = JobRunner()

    def stage():
        for i in range(MAX_LOG_LINES + 300):
            _typer.echo(f"line {i}")

    runner.start("extract", stage)
    runner.wait()
    log = runner.snapshot()["log"]
    assert len(log) == 200
    assert log[-1] == f"line {MAX_LOG_LINES + 299}"


def test_zero_exit_codes_count_as_done():
    import typer as _typer

    for exc in (_typer.Exit(), SystemExit(0)):
        runner = JobRunner()
        runner.start("diff", lambda exc=exc: (_ for _ in ()).throw(exc))
        runner.wait()
        assert runner.snapshot()["status"] == "done"


def test_nonzero_systemexit_is_failed():
    runner = JobRunner()
    runner.start("diff", lambda: (_ for _ in ()).throw(SystemExit(2)))
    runner.wait()
    snap = runner.snapshot()
    assert snap["status"] == "failed" and "2" in snap["error"]


def test_base_exception_cannot_wedge_the_runner():
    class Rude(BaseException):
        pass

    runner = JobRunner()
    runner.start("upload", lambda: (_ for _ in ()).throw(Rude("greenlet died")))
    runner.wait()
    snap = runner.snapshot()
    assert snap["status"] == "failed"
    assert "Rude" in snap["error"]
    assert any("Traceback" in line for line in snap["log"])  # diagnosable
    assert runner.start("extract", lambda: None)  # slot is free again
    runner.wait()


# -- concurrency and restart contracts ----------------------------------


def test_revision_bumps_on_mutations_not_reads(tmp_path):
    from bggpipe.resolve import write_matches

    cfg = _cfg(tmp_path)
    write_matches(
        cfg.matches_path,
        [
            {
                "title_raw": "Mystery",
                "bgg_id": "",
                "bgg_name": "",
                "year": "",
                "type": "",
                "match_status": "unmatched",
                "version_id": "",
                "version_name": "",
                "version_status": "",
                "candidates_json": "[]",
                "version_candidates_json": "[]",
                "source_photos": "x.jpg",
            }
        ],
    )
    web = _app(cfg)
    first = web.get("/api/state").json()
    assert "boot" in first  # clients detect restarts by boot change
    second = web.get("/api/state").json()
    assert second["revision"] == first["revision"]  # reads never bump

    res = web.post(
        "/api/decision",
        json={"title_raw": "Mystery", "source_photos": "x.jpg", "action": "reject"},
    )
    assert res.json()["revision"] > first["revision"]  # mutations bump

    # external rewrite bumps on the next read
    rows = []
    write_matches(cfg.matches_path, rows)
    bumped = web.get("/api/state").json()
    assert bumped["revision"] > res.json()["revision"]


def test_torn_data_files_degrade_with_warnings_not_500(tmp_path):
    cfg = _cfg(tmp_path)
    cfg.unidentified_path.write_text("{torn")
    cfg.games_path.write_text("[not even close")
    web = _app(cfg)
    state = web.get("/api/state")
    pipeline = web.get("/api/pipeline")
    library = web.get("/api/library")
    assert state.status_code == pipeline.status_code == library.status_code == 200
    assert library.json() == []
    assert any("unreadable" in w for w in state.json()["warnings"])


def test_decisions_locked_out_while_matches_rewriting_job_runs(tmp_path):
    from bggpipe.resolve import read_matches, write_matches

    cfg = _cfg(tmp_path)
    write_matches(
        cfg.matches_path,
        [
            {
                "title_raw": "Mystery",
                "bgg_id": "",
                "bgg_name": "",
                "year": "",
                "type": "",
                "match_status": "unmatched",
                "version_id": "",
                "version_name": "",
                "version_status": "",
                "candidates_json": "[]",
                "version_candidates_json": "[]",
                "source_photos": "x.jpg",
            }
        ],
    )
    release = threading.Event()
    jobs = JobRunner()
    web = _app(cfg, stages={"resolve": release.wait}, jobs=jobs)
    web.post("/api/run/resolve")
    res = web.post(
        "/api/decision",
        json={"title_raw": "Mystery", "source_photos": "x.jpg", "action": "reject"},
    )
    assert res.status_code == 409
    assert "resolve run is rewriting" in res.json()["detail"]
    # the decision was NOT applied
    assert read_matches(cfg.matches_path)[0]["match_status"] == "unmatched"
    release.set()
    jobs.wait()


def test_cross_origin_mutations_are_refused(tmp_path):
    web = _app(_cfg(tmp_path))
    # foreign Origin on a same-host request: refused
    res = web.post("/api/run/extract", headers={"origin": "https://evil.example"})
    assert res.status_code == 403
    # foreign Host (DNS rebinding): refused
    res = web.post(
        "/api/photos",
        headers={"host": "evil.example"},
        files={"files": ("a.jpg", b"x", "image/jpeg")},
    )
    assert res.status_code == 403
    # reads are unaffected
    assert (
        web.get("/api/pipeline", headers={"origin": "https://evil.example"}).status_code
        == 200
    )


def test_concurrent_decisions_and_polls_never_lose_a_decision(tmp_path):
    from bggpipe.resolve import read_matches, write_matches

    cfg = _cfg(tmp_path)
    base = {
        "bgg_id": "",
        "bgg_name": "",
        "year": "",
        "type": "",
        "match_status": "unmatched",
        "version_id": "",
        "version_name": "",
        "version_status": "",
        "candidates_json": "[]",
        "version_candidates_json": "[]",
        "source_photos": "x.jpg",
    }
    rows = [{**base, "title_raw": f"Game{i}"} for i in range(8)]
    write_matches(cfg.matches_path, rows)
    web = _app(cfg)

    def decide(i):
        web.post(
            "/api/decision",
            json={
                "title_raw": f"Game{i}",
                "source_photos": "x.jpg",
                "action": "reject",
            },
        )

    def poll():
        web.get("/api/state")

    threads = [threading.Thread(target=decide, args=(i,)) for i in range(8)]
    threads += [threading.Thread(target=poll) for _ in range(8)]
    for t in threads:
        t.start()
    for t in threads:
        t.join()
    saved = read_matches(cfg.matches_path)
    assert all(r["match_status"] == "rejected" for r in saved)


def test_decision_for_vanished_row_is_404_and_touches_nothing(tmp_path):
    from bggpipe.resolve import read_matches, write_matches

    cfg = _cfg(tmp_path)
    row = {
        "title_raw": "Kept",
        "bgg_id": "",
        "bgg_name": "",
        "year": "",
        "type": "",
        "match_status": "unmatched",
        "version_id": "",
        "version_name": "",
        "version_status": "",
        "candidates_json": "[]",
        "version_candidates_json": "[]",
        "source_photos": "x.jpg",
    }
    write_matches(cfg.matches_path, [row])
    web = _app(cfg)
    res = web.post(
        "/api/decision",
        json={"title_raw": "Gone", "source_photos": "x.jpg", "action": "reject"},
    )
    assert res.status_code == 404
    assert read_matches(cfg.matches_path)[0]["match_status"] == "unmatched"


def test_pipeline_reports_badge_fields(tmp_path):
    from bggpipe.resolve import write_matches

    cfg = _cfg(tmp_path)
    base = {
        "bgg_id": "13",
        "bgg_name": "Catan",
        "year": "",
        "type": "boardgame",
        "version_id": "",
        "version_name": "",
        "candidates_json": "[]",
        "version_candidates_json": "[]",
        "source_photos": "x.jpg",
    }
    write_matches(
        cfg.matches_path,
        [
            {
                **base,
                "title_raw": "A",
                "match_status": "ambiguous",
                "version_status": "",
            },
            {
                **base,
                "title_raw": "B",
                "match_status": "auto",
                "version_status": "version_ambiguous",
                "version_id": "1",
            },
        ],
    )
    cfg.to_add_path.write_text("bgg_id,bgg_name\n1,X\n2,Y\n")
    p = _app(cfg).get("/api/pipeline").json()
    assert p["pending_review"] == 2  # one match + one edition decision
    assert p["to_add"] == 2  # header excluded


def test_photo_detail_page_serves_with_photos_nav_active(tmp_path):
    web = _app(_cfg(tmp_path))
    html = web.get("/photos/view/shelf.jpg").text
    assert "all photos" in html
    # the Photos nav entry stays highlighted on the detail page
    import re

    (current,) = re.findall(r'<a href="([^"]+)" aria-current="page"', html)
    assert current == "/photos"
    assert 'src="/static/app.js"' in html
