"""Configuration for the subagent system loaded from config.yaml."""

from pydantic import BaseModel, ConfigDict, Field


class SubagentOverrideConfig(BaseModel):
    """Per-agent configuration overrides."""

    model_config = ConfigDict(frozen=True)

    timeout_seconds: int | None = Field(
        default=None,
        ge=1,
        description="Timeout in seconds for this subagent (None = use global default)",
    )
    max_turns: int | None = Field(
        default=None,
        ge=1,
        description="Maximum turns for this subagent (None = use global or builtin default)",
    )


class SubagentsAppConfig(BaseModel):
    """Configuration for the subagent system."""

    model_config = ConfigDict(frozen=True)

    timeout_seconds: int = Field(
        default=900,
        ge=1,
        description="Default timeout in seconds for all subagents (default: 900 = 15 minutes)",
    )
    max_turns: int | None = Field(
        default=None,
        ge=1,
        description="Optional default max-turn override for all subagents (None = keep builtin defaults)",
    )
    agents: dict[str, SubagentOverrideConfig] = Field(
        default_factory=dict,
        description="Per-agent configuration overrides keyed by agent name",
    )

    def get_timeout_for(self, agent_name: str) -> int:
        """Get the effective timeout for a specific agent.

        Args:
            agent_name: The name of the subagent.

        Returns:
            The timeout in seconds, using per-agent override if set, otherwise global default.
        """
        override = self.agents.get(agent_name)
        if override is not None and override.timeout_seconds is not None:
            return override.timeout_seconds
        return self.timeout_seconds

    def get_max_turns_for(self, agent_name: str, builtin_default: int) -> int:
        """Get the effective max_turns for a specific agent."""
        override = self.agents.get(agent_name)
        if override is not None and override.max_turns is not None:
            return override.max_turns
        if self.max_turns is not None:
            return self.max_turns
        return builtin_default