"""The daily operating view as plain text, and what it must not become
(plan Step 23).

`dagens` is build-brief 6's consumer: the flags the status machine derives
surface here or nowhere. At this milestone it is text -- the HTML dashboard is
M6's job -- and text pinned to a golden file, because a daily view whose
wording drifts is a daily view nobody can diff.

Three properties carry the section, and each is here for a measured reason.

**It writes nothing.** The view is read on a workspace the operator is working
in, often several times a day. A view that refreshed a cache as a side effect
would make reading the pipeline a write, and `sak_status.py --oppdater` is
deliberately the only writer of those four keys.

**"No inbound recorded" is not "gone silent".** With the mail server deferred
to M4, nothing reads the inbox, so an absent inbound event is a fact about the
log and not about the world (risk H9). A view that read the absence as silence
would flag most of the pipeline on its first run and be switched off by the
second.

**The version echo lives in the skill, never in this output.** Step 9 promised
the echo from `dagens` and Step 23 is where that promise is kept -- but the
stamp changes with every commit, so a stamp inside the text would break this
step's own golden at the next commit. The echo is on request, from the skill.

Style note: this file follows tests/test_sak_status_cli.py.
"""

import hashlib
import os
import re
import subprocess
import sys

import pytest

import sak_status

REPO = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
CLI = os.path.join(REPO, "scripts", "dagens.py")
KORPUS = os.path.join(REPO, "tests", "fixtures", "workspace")
GOLDEN = os.path.join(REPO, "tests", "golden", "dagens-2026-09-15.txt")
SKILL = os.path.join(REPO, "skills", "dagens", "SKILL.md")
STEMPEL = os.path.join(REPO, "BUILD_STAMP")
TODAY = "2026-09-15"

#: The three the status machine flags at the frozen date, one per rule.
FLAGGEDE = {
    "2026-09-bratthaug-industri-as-systemarkitekt": "intervju_10",
    "2026-09-havbris-energi-as-losningsarkitekt": "sendt_14",
    "2026-09-storelva-kommune-fagleder-digitalisering": "dialog_7",
}

#: A case with no inbound recorded and no flag. It must be labelled, and it
#: must not be presented as having gone quiet.
UTEN_INNKOMMENDE = "2026-09-nordlys-data-as-ai-radgiver"


def kjor(*argv, **kwargs):
    env = dict(os.environ)
    env.pop("JOBBSOK_WORKSPACE", None)
    env.pop("CLAUDE_PLUGIN_DATA", None)
    env.update(kwargs.get("env", {}))
    proc = subprocess.run(
        [sys.executable, CLI] + list(argv),
        stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=env,
    )
    return proc.returncode, proc.stdout, proc.stderr


def visning(workspace=KORPUS, today=TODAY):
    kode, ut, feil = kjor("--workspace", workspace, "--today", today)
    assert kode == 0, feil.decode("utf-8")
    return ut.decode("utf-8")


def seksjoner(tekst):
    """Split the view into {heading: body}, so a claim about a section is one."""
    deler = re.split(r"^## ", tekst, flags=re.M)
    ut = {}
    for del_ in deler[1:]:
        linjer = del_.split("\n")
        overskrift = re.sub(r"\s*\(\d+\)\s*$", "", linjer[0]).strip()
        ut[overskrift] = "\n".join(linjer[1:])
    return ut


def digest(root):
    ut = {}
    for dirpath, dirnames, filenames in os.walk(root):
        dirnames.sort()
        for navn in sorted(filenames):
            full = os.path.join(dirpath, navn)
            with open(full, "rb") as handle:
                ut[os.path.relpath(full, root)] = hashlib.sha256(handle.read()).hexdigest()
    return ut


def test_the_text_view_matches_the_golden_for_the_fixture_workspace(golden):
    golden(GOLDEN, visning())


def test_the_three_flagged_cases_appear_under_the_silence_section():
    deler = seksjoner(visning())
    stille = [navn for navn in deler if "stille" in navn.lower()]
    assert len(stille) == 1, "expected exactly one silence section, found %r" % (list(deler),)
    kropp = deler[stille[0]]

    for sak_id, flagg in FLAGGEDE.items():
        assert sak_id in kropp, "%s is flagged but not in the silence section" % sak_id
        assert flagg in kropp, "the section never names the rule %r that fired" % flagg

    # And nothing else: a section that listed the whole pipeline would be a
    # section the operator learns to skip. Membership is checked against the
    # corpus's own case list rather than a pattern, because a pattern loose
    # enough to catch a sak-id also catches the ISO dates in the same block.
    oppforte = [sak_id for sak_id in sak_status.alle_saker(KORPUS) if sak_id in kropp]
    assert sorted(oppforte) == sorted(FLAGGEDE), (
        "the silence section lists %r; only the flagged three belong there"
        % (sorted(oppforte),)
    )


def test_a_case_with_no_recorded_inbound_is_labelled_and_not_called_silent():
    tekst = visning()
    deler = seksjoner(tekst)
    stille = deler[[navn for navn in deler if "stille" in navn.lower()][0]]

    assert UTEN_INNKOMMENDE not in stille, (
        "a case with nothing recorded inbound was presented as having gone "
        "quiet; with the mail server deferred that is a fact about the log"
    )
    assert UTEN_INNKOMMENDE in tekst, "the case is missing from the view entirely"

    # Labelled, and in the status machine's own words rather than a second
    # paraphrase that could drift from it.
    rapport = sak_status.rapport(KORPUS, TODAY, UTEN_INNKOMMENDE)
    merknad = rapport["saker"][0]["innkommende"]["merknad"]
    assert merknad and merknad in tekst, (
        "the view never carries the %r note" % (merknad,)
    )


def test_the_run_writes_nothing(workspace):
    forst = digest(workspace)
    kode, _ut, feil = kjor("--workspace", workspace, "--today", TODAY)
    assert kode == 0, feil.decode("utf-8")
    assert digest(workspace) == forst, "the daily view wrote into the workspace"


def test_two_runs_are_byte_identical():
    forste = visning()
    andre = visning()
    assert forste == andre

    # And under two hash seeds, which is what turns "no dict reaches stdout"
    # from an intention into a measurement.
    _kode, null, _ = kjor("--workspace", KORPUS, "--today", TODAY,
                          env={"PYTHONHASHSEED": "0"})
    _kode, mange, _ = kjor("--workspace", KORPUS, "--today", TODAY,
                           env={"PYTHONHASHSEED": "1048573"})
    assert null == mange, (
        "output moved with PYTHONHASHSEED, so a dict or a set reached stdout"
    )


def test_the_skill_carries_the_version_echo_and_the_golden_does_not():
    with open(SKILL, "r", encoding="utf-8") as handle:
        skill = handle.read()
    assert "BUILD_STAMP" in skill, (
        "Step 9 promised the echo from dagens in two places and kept it in "
        "none; this is the step that keeps it"
    )
    assert "plugin.json" in skill, "the echo prints the stamp and the version, not one"

    tekst = visning()
    assert "BUILD_STAMP" not in tekst, (
        "the daily view carries the build stamp; it changes with every commit "
        "and would break this step's own golden at the next one"
    )
    if os.path.isfile(STEMPEL):
        with open(STEMPEL, "r", encoding="utf-8") as handle:
            stempel = handle.read().strip()
        assert stempel and stempel not in tekst, (
            "the stamp %r leaked into the daily view" % (stempel,)
        )