from typing import Optional

from pydantic import BaseModel, ConfigDict, Field, HttpUrl


class QueryRequest(BaseModel):
    model_config = ConfigDict(extra="forbid")

    question: str = Field(min_length=5, max_length=2000, description="Natural language question")
    collection_name: Optional[str] = Field(
        default="default",
        min_length=1,
        max_length=256,
        description="Chroma collection to search",
    )
    top_k: int = Field(default=5, ge=1, le=20, description="Number of chunks to retrieve")
    user_id: str = Field(default="anonymous", max_length=256, description="Caller id for audit filtering")


class SummariseRequest(BaseModel):
    model_config = ConfigDict(extra="forbid")

    collection_name: str = Field(
        default="default",
        min_length=1,
        max_length=256,
        description="Chroma collection to summarise",
    )
    focus: str | None = Field(
        default=None,
        max_length=8000,
        description="Optional angle or scope for retrieval and the summary",
    )
    user_id: str = Field(default="anonymous", max_length=256, description="Caller id for audit filtering")


class URLIngestRequest(BaseModel):
    model_config = ConfigDict(extra="forbid")

    urls: list[HttpUrl] = Field(
        min_length=1,
        max_length=100,
        description="One or more HTTP(S) URLs to PDF, TXT, or Markdown documents",
    )
    collection_name: Optional[str] = Field(
        default="default",
        min_length=1,
        max_length=256,
        description="Target Chroma collection name",
    )


class JobsListParams(BaseModel):
    model_config = ConfigDict(extra="forbid")

    limit: int = Field(default=10, ge=1, le=100, description="Max jobs to return")
    offset: int = Field(default=0, ge=0, description="Offset for pagination")


class AuditListParams(BaseModel):
    model_config = ConfigDict(extra="forbid")

    limit: int = Field(default=50, ge=1, le=100, description="Max log entries to return")
    offset: int = Field(default=0, ge=0, description="Offset for pagination")
    user_id: str | None = Field(default=None, max_length=256, description="Filter by user id")
    from_date: str | None = Field(
        default=None,
        description="ISO 8601 datetime lower bound (inclusive) on timestamp",
    )
    to_date: str | None = Field(
        default=None,
        description="ISO 8601 datetime upper bound (inclusive) on timestamp",
    )