"""Phase 101 E2E (Playwright): the Tokens page overhaul — the owner's
sentence, pinned in a real browser.

Owner request (chat, 2026-09-12): "The tokens page should move revoked
tokens to a separate table below the active ones. Generating a token
should not be possible without giving it a name. Both active and
revoked token tables should be searchable. I should be able to
regenerate active tokens with the click of a button."

Run in isolation (DB must be up: ``podman compose up -d db``):

    uv run pytest tests/e2e/test_tokens_page.py -v --no-cov

Test → claim mapping (every clause of the owner's sentence is pinned):

1. ``test_revoked_tokens_move_to_their_own_table`` — "move revoked
   tokens to a separate table below the active ones": two UI-created
   tokens, one revoked through the two-step — the active table keeps
   ONLY the live row (its thead is exactly four columns — the Status
   column is gone, D1), and the revoked section (visible sub-heading +
   the row's Revoked date cell — non-empty, later than the created
   date, NO action buttons) appears BELOW it. The section ships hidden
   while nothing is revoked (an empty table is noise).
2. ``test_both_tables_are_searchable`` — "both … tables should be
   searchable": each table's own search input live-filters its rows by
   case-insensitive label substring (no fetch) — the no-match row
   reads ``No tokens match "zzz".`` and clears with the input — and
   the query SURVIVES a re-show: leave via the Tuning nav, come back,
   the re-render re-applies the same filter (the phase-77 contract,
   D4).
3. ``test_a_token_cannot_be_generated_without_a_name`` — "generating a
   token should not be possible without giving it a name": a blank or
   whitespace-only name announces ``Give the token a name first.``,
   re-focuses the name input, keeps the once-block hidden, and sends
   NO request (the admin's own ``GET /api/tokens`` shows no new row —
   D3; the ``|| "token"`` fallback is gone).
4. ``test_regenerate_rotates_the_token`` — "regenerate active tokens
   with the click of a button": one Regenerate click opens the house
   two-step confirm (focus on Yes); Yes rotates atomically — the
   once-block re-appears with a NEW plaintext (``bor_`` + 32 hex, ≠
   the original), the live region carries the D2 line, the active
   table holds exactly ONE ``e2e-rot`` row (the successor — newer
   created date), and the revoked table holds the ORIGINAL (same
   label, Revoked date set). The rotation is real: a FRESH context
   signs in with the NEW token through the real gate, and the
   ORIGINAL token is REFUSED at the gate in another fresh context
   (``#auth-gate-error`` role=alert — the rotation killed it
   immediately, the phase-79 revocation semantics).

DB isolation: the shared e2e Postgres keeps ``api_tokens`` rows across
suites (``test_api_tokens.py`` is the sibling suite that issues
tokens with ``e2e-`` labels — its autouse cleanup deletes them too).
An autouse fixture deletes the ``e2e-``-labeled rows before each test
(never a TRUNCATE — the shared DB may hold the owner's real tokens).
Every scenario runs in its OWN fresh browser context for token users —
no cached token (localStorage) or session cookie leaks between tests.
"""
from __future__ import annotations

import re
from datetime import datetime

import pytest
from playwright.sync_api import Browser, BrowserContext, Page, expect
from sqlalchemy import text

from app.db import SessionLocal
from e2e.auth_helpers import login, login_with_token

#: The plaintext token's shape (owner-locked A4): prefix + 32 hex.
TOKEN_RE = re.compile(r"bor_[0-9a-f]{32}")


def _cleanup_e2e_tokens() -> None:
    """Delete this suite's issued tokens (deterministic re-runs).

    Label-scoped on ``e2e-`` — never a TRUNCATE: the shared e2e DB is
    also the dev DB and may hold the owner's real tokens.
    """
    with SessionLocal() as db:
        db.execute(text("DELETE FROM api_tokens WHERE label LIKE 'e2e-%'"))
        db.commit()


@pytest.fixture(autouse=True)
def _e2e_tokens_clean(db_ready: None) -> None:
    """Start every test from the same token-empty state (this file and
    test_api_tokens.py are the suites that issue tokens)."""
    _cleanup_e2e_tokens()


def _go_tokens(page: Page, app_url: str) -> None:
    """Sign in as the admin (the real form login) straight onto the
    Tokens view — the create row is revealed for the admin."""
    login(page, app_url, next="/tokens.html")
    expect(page.locator("#view-tokens")).to_be_visible()
    expect(page.locator("#tokens-gate")).to_be_hidden()  # admin: no sign-in gate
    expect(page.locator("#token-create")).to_be_visible(timeout=15_000)


def _create_via_ui(page: Page, label: str) -> str:
    """Issue one token through the UI create row (name → Generate).

    Returns the plaintext from the shown-once block (the A4 contract:
    it exists only in the field's value) and pins the new row in the
    ACTIVE table.
    """
    page.fill("#token-label", label)
    page.click("#token-generate")
    expect(page.locator("#token-once")).to_be_visible(timeout=15_000)
    token = page.input_value("#token-once-value")
    assert TOKEN_RE.fullmatch(token), f"bad token shape: {token!r}"
    row = page.locator("#tokens-tbody tr", has_text=label)
    expect(row).to_have_count(1)
    expect(page.locator("#tokens-status")).to_have_text(
        "Token created — copy it now; it won't be shown again."
    )
    return token


def _revoke_via_ui(page: Page, label: str) -> None:
    """Revoke one active row through the house two-step (Revoke →
    Yes) and pin the relocation: gone from the active table, present
    in the revoked table below."""
    row = page.locator("#tokens-tbody tr", has_text=label)
    expect(row).to_have_count(1, timeout=15_000)
    row.locator("button.token-revoke").click()
    expect(row.locator(".history-confirm-yes")).to_be_visible()
    row.locator(".history-confirm-yes").click()
    expect(page.locator("#tokens-tbody tr", has_text=label)).to_have_count(0)
    expect(page.locator("#tokens-revoked-tbody tr", has_text=label)).to_have_count(1)
    expect(page.locator("#tokens-status")).to_have_text(f'Revoked "{label}".')


def _whoami(page: Page) -> dict:
    """The page's own ``/api/whoami`` read (the context's cookies)."""
    return page.evaluate("() => fetch('/api/whoami').then((r) => r.json())")


# ---------------------------------------------------------------------------
# 1. Revoked tokens live in their own table below the active ones
#    (D1: the table's position IS the status)
# ---------------------------------------------------------------------------


def test_revoked_tokens_move_to_their_own_table(page: Page, app_url: str, db_ready: None) -> None:
    page.set_default_timeout(30_000)
    _go_tokens(page, app_url)

    # The revoked section SHIPS hidden while nothing is revoked
    # (an empty table is noise) — and the active table is four
    # columns: Label | Created | Last used | Actions (the Status
    # column is gone — the all-active table needs no status).
    expect(page.locator("#tokens-revoked-heading")).to_be_hidden()
    expect(page.locator("#token-search-revoked")).to_be_hidden()
    expect(page.locator("#tokens-revoked-wrap")).to_be_hidden()
    expect(page.locator("#tokens-table thead th")).to_have_count(4)
    expect(page.locator("#tokens-table thead")).not_to_have_text("Status")

    _create_via_ui(page, "e2e-act")
    _create_via_ui(page, "e2e-rev")

    # Revoke e2e-rev through the two-step — the row LEAVES the active
    # table and lands in the revoked table below.
    row = page.locator("#tokens-tbody tr", has_text="e2e-rev")
    expect(row).to_have_count(1, timeout=15_000)
    row.locator("button.token-revoke").click()
    expect(row.locator(".history-confirm-yes")).to_be_visible()
    row.locator(".history-confirm-yes").click()

    # The active table shows ONLY e2e-act…
    expect(page.locator("#tokens-tbody tr", has_text="e2e-act")).to_have_count(1)
    expect(page.locator("#tokens-tbody tr", has_text="e2e-rev")).to_have_count(0)

    # …and the revoked section is visible BELOW the active table: its
    # heading, its own search input, and the row with its Revoked
    # date cell (non-empty, strictly after the created date) and NO
    # action buttons (a dead token has nothing left to act on).
    expect(page.locator("#tokens-revoked-heading")).to_be_visible(timeout=15_000)
    expect(page.locator("#tokens-revoked-heading")).to_have_text("Revoked tokens")
    expect(page.locator("#token-search-revoked")).to_be_visible()
    expect(page.locator("#tokens-revoked-wrap")).to_be_visible()
    revoked = page.locator("#tokens-revoked-tbody tr", has_text="e2e-rev")
    expect(revoked).to_have_count(1)
    # (tokens-date-cell covers Created / Last used / Revoked — the label
    # cell has its own class — so Created is nth(0), Revoked the last.)
    created_iso = revoked.locator("td.tokens-date-cell").nth(0).get_attribute("title")
    revoked_cell = revoked.locator("td.tokens-date-cell").last
    expect(revoked_cell).not_to_be_empty()
    revoked_iso = revoked_cell.get_attribute("title")
    assert created_iso and revoked_iso, (
        f"missing full-ISO hover dates: {created_iso} / {revoked_iso}"
    )
    assert datetime.fromisoformat(revoked_iso) > datetime.fromisoformat(created_iso), (
        "the Revoked date must be strictly after the created date"
    )
    expect(revoked.locator("button")).to_have_count(0)

    expect(page.locator("#tokens-status")).to_have_text('Revoked "e2e-rev".')


# ---------------------------------------------------------------------------
# 2. Both tables are searchable (D4: client-side, per-table, the
#    queries survive re-renders / re-shows)
# ---------------------------------------------------------------------------


def test_both_tables_are_searchable(page: Page, app_url: str, db_ready: None) -> None:
    page.set_default_timeout(30_000)
    _go_tokens(page, app_url)
    _create_via_ui(page, "e2e-a1")
    _create_via_ui(page, "e2e-a2")
    _create_via_ui(page, "e2e-srchrev")
    _revoke_via_ui(page, "e2e-srchrev")

    # Both search inputs are revealed (the active one with the create
    # row, the revoked one with the revoked section).
    expect(page.locator("#token-search-active")).to_be_visible()
    expect(page.locator("#token-search-revoked")).to_be_visible()

    # Active table: type e2e-a1 → only that row visible…
    page.fill("#token-search-active", "e2e-a1")
    expect(page.locator("#tokens-tbody tr", has_text="e2e-a1")).to_be_visible()
    expect(page.locator("#tokens-tbody tr", has_text="e2e-a2")).not_to_be_visible()
    expect(page.locator("#tokens-no-match-row")).to_be_hidden()

    # …type zzz → the no-match row, the distinct-from-empty-state copy…
    page.fill("#token-search-active", "zzz")
    expect(page.locator("#tokens-tbody tr", has_text="e2e-a1")).not_to_be_visible()
    expect(page.locator("#tokens-tbody tr", has_text="e2e-a2")).not_to_be_visible()
    expect(page.locator("#tokens-no-match-row")).to_be_visible()
    expect(page.locator("#tokens-no-match-row")).to_have_text('No tokens match "zzz".')

    # …clear the input → both rows back, no-match hidden.
    page.fill("#token-search-active", "")
    expect(page.locator("#tokens-tbody tr", has_text="e2e-a1")).to_be_visible()
    expect(page.locator("#tokens-tbody tr", has_text="e2e-a2")).to_be_visible()
    expect(page.locator("#tokens-no-match-row")).to_be_hidden()

    # The same three-beat on the revoked search.
    page.fill("#token-search-revoked", "zzz")
    expect(page.locator("#tokens-revoked-tbody tr", has_text="e2e-srchrev")).not_to_be_visible()
    expect(page.locator("#tokens-revoked-no-match-row")).to_be_visible()
    expect(page.locator("#tokens-revoked-no-match-row")).to_have_text('No tokens match "zzz".')
    page.fill("#token-search-revoked", "e2e-srchrev")
    expect(page.locator("#tokens-revoked-tbody tr", has_text="e2e-srchrev")).to_be_visible()
    expect(page.locator("#tokens-revoked-no-match-row")).to_be_hidden()
    page.fill("#token-search-revoked", "")
    expect(page.locator("#tokens-revoked-tbody tr", has_text="e2e-srchrev")).to_be_visible()

    # The query SURVIVES a re-show: type, leave via the Tuning nav,
    # come back — the phase-77 refresh re-renders the rows, and the
    # filter is still applied (the visible set is unchanged).
    page.fill("#token-search-active", "e2e-a1")
    expect(page.locator("#tokens-tbody tr", has_text="e2e-a2")).not_to_be_visible()
    page.click("#nav-tuning")
    expect(page.locator("#view-tuning")).to_be_visible()
    page.click("#nav-tokens")
    expect(page.locator("#view-tokens")).to_be_visible(timeout=15_000)
    expect(page.locator("#tokens-tbody tr", has_text="e2e-a1")).to_be_visible()
    expect(page.locator("#tokens-tbody tr", has_text="e2e-a2")).not_to_be_visible()
    expect(page.locator("#tokens-no-match-row")).to_be_hidden()


# ---------------------------------------------------------------------------
# 3. A nameless token cannot be generated (D3: the live-region line,
#    no request, no row)
# ---------------------------------------------------------------------------


def test_a_token_cannot_be_generated_without_a_name(
    page: Page, app_url: str, db_ready: None
) -> None:
    page.set_default_timeout(30_000)
    _go_tokens(page, app_url)

    def _list_count() -> int:
        """The admin's own GET /api/tokens (page.request shares the
        context's signed session cookie): the server-side row count."""
        r = page.request.get(app_url + "/api/tokens")
        assert r.status == 200, r.text
        return len(r.json()["tokens"])

    # Deterministic start (the autouse cleanup): the active table is
    # in its empty state and the server holds no tokens at all.
    before = _list_count()
    assert before == 0
    expect(page.locator("#tokens-empty-row")).to_be_visible()

    # BLANK name: the refusal line, the once-block stays hidden, and
    # the request NEVER happened (the server-side count is
    # unchanged — the old `|| "token"` fallback is gone).
    expect(page.locator("#token-label")).to_have_value("")
    page.click("#token-generate")
    expect(page.locator("#tokens-status")).to_have_text("Give the token a name first.")
    expect(page.locator("#token-once")).to_be_hidden()
    assert _list_count() == before
    expect(page.locator("#tokens-empty-row")).to_be_visible()

    # WHITESPACE-only name: the same refusal (trimmed client-side).
    page.fill("#token-label", "   ")
    page.click("#token-generate")
    expect(page.locator("#tokens-status")).to_have_text("Give the token a name first.")
    expect(page.locator("#token-once")).to_be_hidden()
    assert _list_count() == before
    expect(page.locator("#tokens-empty-row")).to_be_visible()


# ---------------------------------------------------------------------------
# 4. Regenerate rotates the credential end to end (D2: the atomic
#    rotation — the new token signs in, the old one is refused)
# ---------------------------------------------------------------------------


def test_regenerate_rotates_the_token(
    page: Page, browser: Browser, app_url: str, db_ready: None
) -> None:
    page.set_default_timeout(30_000)
    _go_tokens(page, app_url)

    original = _create_via_ui(page, "e2e-rot")
    row = page.locator("#tokens-tbody tr", has_text="e2e-rot")
    expect(row).to_have_count(1)
    # (Created is the first date cell — the label cell has its own class.)
    old_created_iso = row.locator("td.tokens-date-cell").nth(0).get_attribute("title")
    assert old_created_iso, "the created cell must carry the full ISO hover date"

    # ONE click opens the house two-step confirm (focus on Yes) —
    # the rotation is a primary lifecycle action, Regenerate sits
    # before Revoke in the Actions cell.
    row.locator("button.token-regenerate").first.click()
    expect(row.locator(".history-confirm-text")).to_have_text(
        "Regenerate? The current token is revoked."
    )
    yes = row.locator(".history-confirm-yes")
    expect(yes).to_be_visible()
    expect(yes).to_be_focused()
    yes.click()

    # Wait for the full 201 sequence (load → once-block reveal →
    # announce) on the live-region line: while the request is in
    # flight the once-block still holds the ORIGINAL plaintext from
    # the create — the D2 line lands LAST, so it is the sync point.
    expect(page.locator("#tokens-status")).to_have_text(
        "Regenerated \"e2e-rot\" — copy the new token now; it won't be shown again.",
        timeout=15_000,
    )
    # The once-block re-appeared with a NEW plaintext (≠ the original,
    # well-formed) — the same shown-once block, the A4 value-only
    # contract.
    expect(page.locator("#token-once")).to_be_visible()
    new_token = page.input_value("#token-once-value")
    assert TOKEN_RE.fullmatch(new_token), f"bad new token shape: {new_token!r}"
    assert new_token != original, "the rotation must mint a fresh credential"

    # The active table holds exactly ONE e2e-rot row — the successor
    # (its created date is strictly newer than the original's)…
    new_row = page.locator("#tokens-tbody tr", has_text="e2e-rot")
    expect(new_row).to_have_count(1)
    new_created_iso = new_row.locator("td.tokens-date-cell").nth(0).get_attribute("title")
    assert new_created_iso, "the successor's created cell must carry the full ISO hover date"
    assert datetime.fromisoformat(new_created_iso) > datetime.fromisoformat(old_created_iso), (
        "the successor must be a NEW row (a newer created date)"
    )
    # …and the REVOKED table now holds the ORIGINAL (same label — the
    # hand-out name persists — its created date is the old one, its
    # Revoked date is set).
    expect(page.locator("#tokens-revoked-heading")).to_be_visible()
    rev_row = page.locator("#tokens-revoked-tbody tr", has_text="e2e-rot")
    expect(rev_row).to_have_count(1)
    assert (
        rev_row.locator("td.tokens-date-cell").nth(0).get_attribute("title")
        == old_created_iso
    ), "the revoked row must be the ORIGINAL (same created date)"
    rev_iso = rev_row.locator("td.tokens-date-cell").last.get_attribute("title")
    assert rev_iso, "the original's Revoked date must be set"
    assert datetime.fromisoformat(rev_iso) >= datetime.fromisoformat(old_created_iso)

    # A FRESH token-user context signs in with the NEW token through
    # the real gate (the gate closes, the app is interactive) — the
    # rotation minted a working credential.
    ok_ctx: BrowserContext | None = None
    try:
        ok_ctx = browser.new_context()
        ok = ok_ctx.new_page()
        ok.set_default_timeout(30_000)
        login_with_token(ok, app_url, new_token)
        assert _whoami(ok) == {"authenticated": True, "role": "user"}
    finally:
        if ok_ctx is not None:
            ok_ctx.close()

    # …and the ORIGINAL token is REFUSED in another fresh context
    # (the rotation killed it immediately — the phase-79
    # revocation semantics: the role=alert line, the gate stays, the
    # visitor is anonymous).
    bad_ctx: BrowserContext | None = None
    try:
        bad_ctx = browser.new_context()
        bad = bad_ctx.new_page()
        bad.set_default_timeout(30_000)
        login_with_token(bad, app_url, original, expect_error=True)
        expect(bad.locator("#auth-gate-error")).to_have_attribute("role", "alert")
        assert _whoami(bad) == {"authenticated": False, "role": "anonymous"}
    finally:
        if bad_ctx is not None:
            bad_ctx.close()