# Copyright (c) 2026 Krzysztof Rudnicki. MIT licence.
"""The nightly block: exact text, and the line budget."""

from __future__ import annotations

from signal_bot.stats.queries_day import DayRow, day_totals, with_silent
from signal_bot.stats.render_day import MAX_LINES, DayView, render_day, summary_line

# The real group, so the rendered example is a case that can actually occur.
GROUP = [
    ("Ala", 76, 12),
    ("Tomasz Nowak", 42, 3),
    ("kuhy", 38, 0),
    ("Basia", 33, 1),
    ("Franciszek Kowalczyk", 16, 0),
    ("Cezary Wiśniewski", 15, 0),
]


def rows(spec: list[tuple[str, int, int]], *, commands: int = 0) -> list[DayRow]:
    """Build day rows from (name, messages, media) triples."""
    return [
        DayRow(
            uuid=f"u{i}",
            display_name=name,
            messages=messages,
            media=media,
            commands=commands if i == 0 else 0,
            chars=messages * 47,
        )
        for i, (name, messages, media) in enumerate(spec)
    ]


def test_the_nightly_block_for_a_real_day() -> None:
    """Pinned exactly: this is the only assertion that proves the rendering."""
    day_rows_ = with_silent(rows(GROUP), [("u9", "Celina")])
    rendered = render_day(
        "2026-09-01",
        day_rows_,
        day_totals(day_rows_),
        DayView(since="2026-08-30", highlights=("🏆 Ala 76 — rekord życiowy (poprzedni 71)",)),
    )
    assert rendered == (
        "📊 Wtorek, 1 września — 220 wiadomości (16 📷)\n"
        "👑 Ala — 76 (12 📷)\n"
        "2. Tomasz Nowak — 42 (3 📷)\n"
        "3. kuhy — 38\n"
        "4. Basia — 33 (1 📷)\n"
        "5. Franciszek Kowalczyk — 16\n"
        "6. Cezary Wiśniewski — 15\n"
        "🏆 Ala 76 — rekord życiowy (poprzedni 71)\n"
        "Cisza: Celina\n"
        "Średnio 47 znaków na wiadomość.\n"
        "(liczymy od 30 sierpnia)"
    )
    assert len(rendered.split("\n")) <= MAX_LINES


def test_a_day_with_no_media_shows_no_camera() -> None:
    day = rows([("kuhy", 3, 0)])
    rendered = render_day("2026-09-01", day, day_totals(day))
    assert "📷" not in rendered
    assert rendered.startswith("📊 Wtorek, 1 września — 3 wiadomości\n👑 kuhy — 3")


def test_commands_are_broken_out() -> None:
    day = rows([("kuhy", 10, 0)], commands=4)
    assert summary_line(day_totals(day)) == "Z tego 4 komendy, średnio 47 znaków na wiadomość."


def test_an_approximate_day_claims_no_average_length() -> None:
    """The backfilled day has counts but no lengths; 0 would be a lie."""
    day = rows([("kuhy", 10, 0)])
    assert summary_line(day_totals(day), approximate=True) == ""
    with_commands = rows([("kuhy", 10, 0)], commands=4)
    assert summary_line(day_totals(with_commands), approximate=True) == "Z tego 4 komendy."


def test_summary_is_empty_on_a_day_nobody_spoke() -> None:
    assert summary_line(day_totals([])) == ""
    assert day_totals([]).average_length == 0


def test_unnamed_members_are_counted_never_named() -> None:
    """Their only spellings are a uuid or a phone number; both would leak."""
    day = with_silent(rows([("kuhy", 3, 0)]), [("u9", "Celina")])
    rendered = render_day("2026-09-01", day, day_totals(day), DayView(unnamed=2))
    assert "Cisza: Celina, i 2 osoby bez ani jednej wiadomości tutaj" in rendered


def test_a_big_group_is_truncated_and_still_fits() -> None:
    """The rule the current group size cannot reach, fixed before it can."""
    big = rows([(f"Osoba {i:02d}", 30 - i, 0) for i in range(20)])
    rendered = render_day(
        "2026-09-01",
        big,
        day_totals(big),
        DayView(since="2026-08-30", highlights=("🏆 rekord", "👑 korona", "📅 wtorki")),
    )
    lines = rendered.split("\n")
    assert len(lines) <= MAX_LINES
    assert any(line.startswith("…i ") for line in lines)
    # The reserved highlight slot survives the truncation.
    assert "🏆 rekord" in rendered


def test_the_hidden_tail_reports_its_own_total() -> None:
    day = rows([("A", 10, 0), ("B", 5, 0), ("C", 3, 0), ("D", 2, 0)])
    rendered = render_day(
        "2026-09-01",
        day,
        day_totals(day),
        DayView(since="2026-08-30", highlights=("h1", "h2", "h3")),
    )
    assert len(rendered.split("\n")) <= MAX_LINES


def test_a_custom_heading_replaces_the_date() -> None:
    day = rows([("kuhy", 1, 0)])
    rendered = render_day("2026-09-01", day, day_totals(day), DayView(heading="Dziś, na razie"))
    assert rendered.startswith("Dziś, na razie\n")