"""Resources for the ops MCP server."""

import json

from mcp_servers.data.scenarios.manager import scenario_manager
from mcp_servers.ops import server
from mcp_servers.ops.server import mcp


@mcp.resource("ops://crew/roster")
def crew_roster() -> str:
    """Full crew roster for the current scenario.

    Returns per crew: crew_id, name, role, base_hub, duty status summary.
    """
    roster = []
    for c in scenario_manager.crew:
        hours_remaining = c.duty_hours_limit - c.duty_hours_elapsed
        roster.append({
            "crew_id": c.crew_id,
            "name": c.name,
            "role": c.role.value,
            "base_hub": c.base_hub,
            "duty_status": "AT_RISK" if hours_remaining <= 2.0 else "OK",
            "hours_until_limit": round(hours_remaining, 2),
            "next_flight": c.next_scheduled_flight,
        })
    return json.dumps(roster)


@mcp.resource("ops://handover/latest")
def latest_handover() -> str:
    """The most recently generated shift handover brief.

    Returns null if no brief has been generated yet.
    """
    if server._last_handover is None:
        return json.dumps(None)
    return json.dumps(server._last_handover)