"""Pydantic schemas for the Unified Search plugin."""

from __future__ import annotations

from typing import Any

from pydantic import BaseModel, Field

# ─── Search ───

class SearchRequest(BaseModel):
    query: str = Field(..., min_length=1, max_length=500)
    entity_types: list[str] | None = None
    limit: int = Field(default=20, ge=1, le=100)
    offset: int = Field(default=0, ge=0)
    date_from: str | None = Field(
        default=None, description="ISO date (YYYY-MM-DD) — filter by created_at/updated_at >= date_from"
    )
    date_to: str | None = Field(
        default=None, description="ISO date (YYYY-MM-DD) — filter by created_at/updated_at <= date_to"
    )
    tags: list[str] | None = Field(
        default=None, description="Filter results by tags (comma-separated on entities)"
    )
    sort: str = Field(
        default="relevance",
        description="Sort order: relevance, date, name",
    )


class SearchResult(BaseModel):
    entity_type: str
    entity_id: str
    title: str
    snippet: str
    score: float
    data: dict[str, Any] = Field(default_factory=dict)


class SearchResponse(BaseModel):
    query: str
    normalized_query: str
    results: list[SearchResult]
    facets: dict[str, Any]
    summary: str
    suggestions: list[str]


class FacetsResponse(BaseModel):
    """Available facets for search filtering."""

    entity_types: list[str]
    tags: list[str]
    date_ranges: dict[str, Any]


# ─── Similar ───

class SimilarRequest(BaseModel):
    entity_type: str
    entity_id: str
    limit: int = Field(default=5, ge=1, le=50)


class SimilarResponse(BaseModel):
    similar: dict[str, list[SearchResult]]


# ─── Suggest ───

class SuggestRequest(BaseModel):
    q: str = Field(..., min_length=1, max_length=200)
    limit: int = Field(default=10, ge=1, le=50)


class SuggestResponse(BaseModel):
    suggestions: list[str]


# ─── Reindex ───

class ReindexRequest(BaseModel):
    entity_types: list[str] = Field(default_factory=list)
    include_chunks: bool = Field(default=True, description="Re-index document chunks for files")


# ─── Provider ───

class ProviderResponse(BaseModel):
    entity_type: str
    plugin_name: str
    is_active: bool
    supports_fts: bool = True
    supports_vector: bool = True
    supports_rag: bool = False
    supports_graph: bool = False