from __future__ import annotations

from typing import Any, Dict

from skills.base import (
    Skill,
    SkillCategory,
    SkillContext,
    SkillLevel,
    SkillMetadata,
    SkillResult,
)


class MeticulousSemanticJudgeSkill(Skill):
    """Cross-encoder reranking and semantic validation."""

    def metadata(self) -> SkillMetadata:
        return SkillMetadata(
            id="foundational/meticulous-semantic-judge",
            name="Meticulous Semantic Judge",
            description="Cross-encode query/document pairs for semantic reranking",
            category=SkillCategory.DATA,
            level=SkillLevel.INTERMEDIATE,
            tags=["rerank", "semantic", "cross-encoder"],
        )

    def input_schema(self) -> Dict[str, Any]:
        return {
            "type": "object",
            "properties": {
                "capability": {"type": "string", "enum": ["rerank", "validate"]},
                "query": {"type": "string"},
            },
            "required": ["capability"],
            "additionalProperties": False,
        }

    def output_schema(self) -> Dict[str, Any]:
        return {"type": "object", "properties": {"steps": {"type": "array"}}}

    def execute(self, input_data: Dict[str, Any], context: SkillContext) -> SkillResult:
        capability = input_data.get("capability")
        query = input_data.get("query", "query")

        if capability == "rerank":
            steps = [
                f"Pair query with candidate docs: {query}",
                "Compute cross-encoder scores",
                "Sort by relevance",
            ]
            return SkillResult(success=True, output={"steps": steps}, skill_id=self.metadata().id)

        if capability == "validate":
            steps = [
                "Check semantic entailment",
                "Filter contradictory results",
                "Confirm top results meet threshold",
            ]
            return SkillResult(success=True, output={"steps": steps}, skill_id=self.metadata().id)

        return SkillResult(success=False, output=None, error="Unknown capability", skill_id=self.metadata().id)


__all__ = ["MeticulousSemanticJudgeSkill"]
