"""The v4 task matrix: v3 plus what 1.6 added.

``pid_roundtrip`` (track A) draws a five-item P&ID through the same code the
tools call and reads it back: the edge count, the absence of dangling ends
and the instrument index are each derived independently of the drawing code.

``page_setup_truth`` (track E) applies an ISO A3 landscape page setup to a
layout, plots it through ``batch_plot`` and reads the sheet size back from
the PDF's own ``/MediaBox`` — the setup is verified by the file, not by the
setter's return value. A fresh Layout1 is already A3 landscape, so the task
moves the sheet to ANSI B (432 × 279) and reads that PDF first; a setter that
writes nothing fails there, not at the A3 read-back.

The published competitor reports were never asked either question; the chart
shows ``not_run`` for them, not zero.
"""

from __future__ import annotations

from benchmarks.tasks_v2 import TASKS_V2, TaskSpec
from benchmarks.tasks_v3 import TASKS_V3

#: Added in v1.6.0. Each can fail on its own.
NEW_TASKS_V4: tuple[TaskSpec, ...] = (
    TaskSpec(
        "pid_roundtrip",
        "pid",
        "Draw a P&ID from a spec and read back a matching graph, index and line list",
        1.0,
    ),
    TaskSpec(
        "page_setup_truth",
        "pagesetup",
        "Apply an ISO A3 page setup, plot it, and read the sheet size back from the PDF",
        1.0,
    ),
)

TASKS_V4: tuple[TaskSpec, ...] = TASKS_V3 + NEW_TASKS_V4

#: Runner-selectable task sets. v2 and v3 stay addressable so an earlier
#: report can be reproduced exactly rather than only described.
MATRICES: dict[str, tuple[TaskSpec, ...]] = {"v2": TASKS_V2, "v3": TASKS_V3, "v4": TASKS_V4}

DEFAULT_MATRIX = "v4"


def task_by_id(task_id: str, matrix: str = DEFAULT_MATRIX) -> TaskSpec:
    for task in MATRICES[matrix]:
        if task.task_id == task_id:
            return task
    raise KeyError(f"{task_id} is not in matrix {matrix}")