"""Auto-generated cb task for KiCad submission 733d278a-fae9-4489-8b54-87385b83cfca."""
from __future__ import annotations

import asyncio
from pathlib import Path

import cua_bench as cb

_SUBMISSION_ID = "733d278a-fae9-4489-8b54-87385b83cfca"
_REMOTE_PROJECT_DIR = "/home/cua/kicad_project"
_HARNESS_DIR = Path(__file__).parent


@cb.tasks_config
def tasks() -> list[cb.Task]:
    return [
        cb.Task(
            description='''Modify the discrete BJT-based H-bridge motor driver shown in the attached schematic to improve switching behavior and reduce motor noise. Add a 100 nF ceramic capacitor across the motor terminals to suppress high-frequency switching spikes and electromagnetic interference (EMI). Add two 10 kΩ pull-down resistors on the two control input lines so the bridge defaults to OFF when the inputs are floating. Keep all existing components and connections unchanged.''',
            metadata={"difficulty": 'medium', "submission_id": _SUBMISSION_ID},
        )
    ]


@cb.setup_task(split="train")
async def start(task_cfg: cb.Task, session: cb.DesktopSession) -> None:
    await session.apps.kicad.install(with_shortcut=True)

    initial_dir = _HARNESS_DIR / "initial"
    for local_path in sorted(initial_dir.rglob("*")):
        if not local_path.is_file():
            continue
        rel = local_path.relative_to(initial_dir)
        remote_path = f"{_REMOTE_PROJECT_DIR}/{rel.as_posix()}"
        remote_dir = f"{_REMOTE_PROJECT_DIR}/{rel.parent.as_posix()}"
        await session.run_command(f"mkdir -p '{remote_dir}'", check=False)
        await session.write_bytes(remote_path, local_path.read_bytes())

    try:
        await session.apps.kicad.launch(project_path='/home/cua/kicad_project/kicad_motor driver_circuit/kicad_motor driver_circuit.kicad_pro')
    except Exception:
        pass
    await asyncio.sleep(5)


@cb.solve_task(split="train")
async def solve(task_cfg: cb.Task, session: cb.DesktopSession) -> None:
    """Oracle solver: upload reference.net directly to the expected output path."""
    await session.run_command(f"mkdir -p '{_REMOTE_PROJECT_DIR}'", check=False)
    await session.write_bytes(
        f"{_REMOTE_PROJECT_DIR}/output.net",
        (_HARNESS_DIR / "reference.net").read_bytes(),
    )


@cb.evaluate_task(split="train")
async def evaluate(task_cfg: cb.Task, session: cb.DesktopSession) -> float:
    from cua_bench.netlist_compare import (
        compare_kicad_netlists,
        load_reference_netlist,
    )

    reference = load_reference_netlist(_HARNESS_DIR / "reference.net", _HARNESS_DIR)

    # Try common netlist output locations first
    candidate_paths = [
        f"{_REMOTE_PROJECT_DIR}/{_SUBMISSION_ID}.net",
        f"{_REMOTE_PROJECT_DIR}/output.net",
    ]
    for path in candidate_paths:
        result = await session.run_command(f"cat '{path}'", check=False)
        candidate = result.get("stdout", "")
        if candidate.strip():
            return compare_kicad_netlists(candidate, reference)

    # Search for any .net file in the project dir
    result = await session.run_command(
        f"find {_REMOTE_PROJECT_DIR} -name '*.net' | head -1", check=False
    )
    net_path = result.get("stdout", "").strip()
    if net_path:
        result = await session.run_command(f"cat '{net_path}'", check=False)
        candidate = result.get("stdout", "")
        if candidate.strip():
            return compare_kicad_netlists(candidate, reference)

    # Fall back: agent edited schematic without exporting — use kicad-cli to generate netlist
    result = await session.run_command(
        f"find {_REMOTE_PROJECT_DIR} -name '*.kicad_sch' | head -1", check=False
    )
    sch_path = result.get("stdout", "").strip()
    if sch_path:
        out_net = "/tmp/kicad_eval_output.net"
        await session.run_command(
            f"kicad-cli sch export netlist '{sch_path}' -o '{out_net}'",
            check=False,
        )
        result = await session.run_command(f"cat '{out_net}'", check=False)
        candidate = result.get("stdout", "")
        if candidate.strip():
            return compare_kicad_netlists(candidate, reference)

    return 0.0