"""
Steward agent schemas.

Defines the structured output models for Steward's request analysis
and capability recommendations.
"""
from typing import Any, Literal, Optional

from pydantic import BaseModel, Field


class ConversationContext(BaseModel):
    """
    Contextual information extracted from conversation history.

    The Steward analyzes the full conversation to identify references
    to previous topics, helping the Butler maintain context.
    """
    has_previous_context: bool = Field(
        description="Whether the current request references previous conversation turns"
    )
    relevant_turns: list[int] = Field(
        default_factory=list,
        description="0-indexed turn numbers that are relevant to the current request"
    )
    context_summary: str = Field(
        default="",
        description="Brief summary of relevant context for the Butler"
    )


class StewardRecommendation(BaseModel):
    """
    Structured recommendation from Steward's request analysis.

    This is the output format for the Steward agent, providing:
    - Which household capabilities are needed
    - Why those capabilities were chosen
    - Complexity assessment
    - Conversation context
    - Missing capabilities (if any)
    """
    recommended_capabilities: list[str] = Field(
        description="List of household member names to include (e.g., ['tatlock_core'])"
    )
    reasoning: str = Field(
        description="Explanation of why these capabilities were recommended"
    )
    estimated_complexity: Literal["simple", "moderate", "complex"] = Field(
        description="Complexity assessment: simple (1 tool), moderate (2-3 tools), complex (multiple tools/steps)"
    )
    conversation_context: ConversationContext = Field(
        description="Contextual information from conversation history"
    )
    missing_capabilities: Optional[str] = Field(
        default=None,
        description="Description of capabilities that would be helpful but aren't available"
    )
    memory_context: dict[str, Any] = Field(
        default_factory=dict,
        description="Pre-fetched user context from memory (profile, preferences)"
    )
    enriched_query: str = Field(
        default="",
        description="User query with auto-filled context (location, timezone) when not specified"
    )

    def format_for_butler(self) -> str:
        """
        Format recommendation as a note for the Butler.

        Returns:
            Formatted string suitable for prepending to user request
        """
        lines = []

        # Header
        lines.append("📋 Steward's Analysis")
        lines.append("=" * 40)

        # Complexity
        lines.append(f"Complexity: {self.estimated_complexity.upper()}")

        # Recommended capabilities
        if self.recommended_capabilities:
            caps = ", ".join(self.recommended_capabilities)
            lines.append(f"Recommended tools: {caps}")
        else:
            lines.append("Recommended tools: None (conversational response)")

        # Context summary
        if self.conversation_context.has_previous_context:
            lines.append(f"Context: {self.conversation_context.context_summary}")

        # Missing capabilities warning
        if self.missing_capabilities:
            lines.append(f"⚠️  Missing: {self.missing_capabilities}")

        # Memory context (user profile and preferences)
        if self.memory_context:
            profile = self.memory_context.get("profile", {})
            preferences = self.memory_context.get("preferences", {})

            if profile or preferences:
                lines.append("-" * 40)
                lines.append("User Context:")

            if profile:
                for key, value in profile.items():
                    lines.append(f"  • {key}: {value}")

            if preferences:
                prefs_str = ", ".join(f"{k}={v}" for k, v in preferences.items())
                lines.append(f"  • preferences: {prefs_str}")

        # Add delegation instructions when expert agents are recommended
        delegation_agents = [c for c in self.recommended_capabilities
                           if c in ("biographer", "librarian")]
        if delegation_agents:
            lines.append("-" * 40)
            lines.append("DELEGATION REQUIRED:")
            for agent in delegation_agents:
                lines.append(f'  Call: delegate_to_{agent}(task="[user request]")')
                lines.append(f'  Or output: [DELEGATE:{agent}] task="[user request]"')

        lines.append("=" * 40)

        return "\n".join(lines)