import atexit
import contextlib
import logging
import signal
import sys
import threading
import time
from typing import Any

from rich.console import Console
from rich.live import Live
from rich.panel import Panel
from rich.text import Text

from strix.config import load_settings
from strix.config.settings import DEFAULT_MAX_TURNS
from strix.core.runner import run_strix_scan
from strix.report.state import ReportState, set_global_report_state
from strix.runtime import session_manager

from .utils import (
    build_live_stats_text,
    format_vulnerability_report,
    has_model_response,
    read_workspace_files,
)


logger = logging.getLogger(__name__)


def _resolve_sandbox_image() -> str:
    image = load_settings().runtime.image
    if not image:
        raise RuntimeError(
            "strix_image is not configured. Set it in ~/.strix/cli-config.json.",
        )
    return image


async def run_cli(args: Any) -> None:  # noqa: PLR0915
    console = Console()

    start_text = Text()
    start_text.append("Penetration test initiated", style="bold #22c55e")

    target_text = Text()
    target_text.append("Target", style="dim")
    target_text.append("  ")
    if len(args.targets_info) == 1:
        target_text.append(args.targets_info[0]["original"], style="bold white")
    else:
        target_text.append(f"{len(args.targets_info)} targets", style="bold white")
        for target_info in args.targets_info:
            target_text.append("\n        ")
            target_text.append(target_info["original"], style="white")

    results_text = Text()
    results_text.append("Output", style="dim")
    results_text.append("  ")
    results_text.append(f"strix_runs/{args.run_name}", style="#60a5fa")

    note_text = Text()
    note_text.append("\n\n", style="dim")
    note_text.append("Vulnerabilities will be displayed in real-time.", style="dim")

    startup_panel = Panel(
        Text.assemble(
            start_text,
            "\n\n",
            target_text,
            "\n",
            results_text,
            note_text,
        ),
        title="[bold white]STRIX",
        title_align="left",
        border_style="#22c55e",
        padding=(1, 2),
    )

    console.print("\n")
    console.print(startup_panel)
    console.print()

    scan_mode = getattr(args, "scan_mode", "deep")

    scan_config: dict[str, Any] = {
        "scan_id": args.run_name,
        "targets": args.targets_info,
        "user_instructions": args.instruction or "",
        "run_name": args.run_name,
        "diff_scope": getattr(args, "diff_scope", {"active": False}),
        "scan_mode": scan_mode,
        "non_interactive": bool(getattr(args, "non_interactive", False)),
        "local_sources": getattr(args, "local_sources", None) or [],
        "workspace_files": getattr(args, "workspace_files", None) or [],
        "scope_mode": getattr(args, "scope_mode", "auto"),
        "diff_base": getattr(args, "diff_base", None),
        "resume_instruction": getattr(args, "user_explicit_instruction", None) or "",
    }

    report_state = ReportState(args.run_name)
    report_state.hydrate_from_run_dir()
    report_state.set_scan_config(scan_config)
    report_state.save_run_data()

    def display_vulnerability(report: dict[str, Any]) -> None:
        report_id = report.get("id", "unknown")

        vuln_text = format_vulnerability_report(report)

        vuln_panel = Panel(
            vuln_text,
            title=f"[bold red]{report_id.upper()}",
            title_align="left",
            border_style="red",
            padding=(1, 2),
        )

        console.print(vuln_panel)
        console.print()

    report_state.vulnerability_found_callback = display_vulnerability

    def cleanup_on_exit() -> None:
        report_state.cleanup()

    def signal_handler(_signum: int, _frame: Any) -> None:
        report_state.cleanup(status="interrupted")
        sys.exit(1)

    atexit.register(cleanup_on_exit)
    signal.signal(signal.SIGINT, signal_handler)
    signal.signal(signal.SIGTERM, signal_handler)
    if hasattr(signal, "SIGHUP"):
        signal.signal(signal.SIGHUP, signal_handler)

    set_global_report_state(report_state)

    startup_phase: list[str] = ["Starting up"]

    def create_live_status() -> Panel:
        status_text = Text()
        status_text.append("Penetration test in progress", style="bold #22c55e")
        status_text.append("\n\n")

        if not has_model_response(report_state):
            status_text.append(f"{startup_phase[0]}...", style="dim")
            status_text.append("\n\n")

        stats_text = build_live_stats_text(report_state)
        if stats_text:
            status_text.append(stats_text)

        return Panel(
            status_text,
            title="[bold white]STRIX",
            title_align="left",
            border_style="#22c55e",
            padding=(1, 2),
        )

    def _note_startup_phase(phase: str) -> None:
        startup_phase[:] = [phase]

    try:
        console.print()

        with Live(
            create_live_status(), console=console, refresh_per_second=2, transient=False
        ) as live:
            stop_updates = threading.Event()

            def update_status() -> None:
                while not stop_updates.is_set():
                    try:
                        live.update(create_live_status())
                        time.sleep(2)
                    except Exception:
                        break

            update_thread = threading.Thread(target=update_status, daemon=True)
            update_thread.start()

            try:
                logger.info(
                    "CLI launching scan: run_name=%s targets=%d interactive=%s",
                    args.run_name,
                    len(scan_config.get("targets") or []),
                    bool(getattr(args, "interactive", False)),
                )
                await run_strix_scan(
                    scan_config=scan_config,
                    scan_id=args.run_name,
                    image=_resolve_sandbox_image(),
                    local_sources=getattr(args, "local_sources", None) or [],
                    extra_files=read_workspace_files(getattr(args, "workspace_files", None)),
                    interactive=bool(getattr(args, "interactive", False)),
                    max_budget_usd=getattr(args, "max_budget_usd", None),
                    max_turns=getattr(args, "max_turns", DEFAULT_MAX_TURNS),
                    status_sink=_note_startup_phase,
                )
            finally:
                stop_updates.set()
                update_thread.join(timeout=1)
                with contextlib.suppress(Exception):
                    await session_manager.cleanup(args.run_name)

    except Exception as e:
        console.print(f"[bold red]Error during penetration test:[/] {e}")
        raise

    if report_state.final_scan_result:
        console.print()

        final_report_text = Text()
        final_report_text.append("Penetration test summary", style="bold #60a5fa")

        final_report_panel = Panel(
            Text.assemble(
                final_report_text,
                "\n\n",
                report_state.final_scan_result,
            ),
            title="[bold white]STRIX",
            title_align="left",
            border_style="#60a5fa",
            padding=(1, 2),
        )

        console.print(final_report_panel)
        console.print()
