"""
Pydantic schemas for SEC filing endpoints.
"""

from datetime import datetime
from typing import Any, Dict, List, Optional
from pydantic import BaseModel, ConfigDict, Field


class FilingDocumentInfo(BaseModel):
    model_config = ConfigDict(json_schema_extra={
        "example": {
            "type": "EX-99.1",
            "description": "Press Release",
            "filename": "ex991pressrelease.htm",
            "url": "https://www.sec.gov/Archives/edgar/data/320193/000032019324000006/ex991pressrelease.htm",
            "size": "42 KB",
        }
    })

    type: Optional[str] = None
    description: Optional[str] = None
    filename: Optional[str] = None
    url: Optional[str] = None
    size: Optional[str] = None


class FilingSummary(BaseModel):
    model_config = ConfigDict(json_schema_extra={
        "example": {
            "accession_number": "0000320193-24-000006",
            "form_type": "8-K",
            "filing_date": "2024-02-01",
            "accepted_at": "2024-02-01T21:00:05+00:00",
            "primary_document": "a8-k20240201.htm",
            "filing_description": "Results of Operations and Financial Condition",
            "documents_count": 4,
            "parsed_status": "succeeded",
            "items": ["2.02", "9.01"],
        }
    })

    accession_number: str
    form_type: str
    filing_date: str
    accepted_at: Optional[str] = None
    primary_document: Optional[str] = None
    filing_description: Optional[str] = None
    documents_count: Optional[int] = None
    parsed_status: Optional[str] = None
    items: Optional[List[str]] = None


class FilingSearchResponse(BaseModel):
    model_config = ConfigDict(json_schema_extra={
        "example": {
            "ticker": "AAPL",
            "filings": [
                {
                    "accession_number": "0000320193-24-000006",
                    "form_type": "8-K",
                    "filing_date": "2024-02-01",
                    "accepted_at": "2024-02-01T21:00:05+00:00",
                    "primary_document": "a8-k20240201.htm",
                    "filing_description": "Results of Operations and Financial Condition",
                    "documents_count": 4,
                }
            ],
            "total_count": 42,
            "metadata": {"limit": 20, "offset": 0, "form_types": ["8-K"]},
        }
    })

    ticker: str
    filings: List[FilingSummary]
    total_count: int
    metadata: dict = Field(default_factory=dict)


class FilingDocumentListResponse(BaseModel):
    model_config = ConfigDict(json_schema_extra={
        "example": {
            "accession_number": "0000320193-24-000006",
            "documents": [
                {
                    "type": "8-K",
                    "description": "8-K",
                    "filename": "a8-k20240201.htm",
                    "url": "https://www.sec.gov/Archives/edgar/data/320193/000032019324000006/a8-k20240201.htm",
                    "size": "8 KB",
                },
                {
                    "type": "EX-99.1",
                    "description": "Press Release",
                    "filename": "ex991pressrelease.htm",
                    "url": "https://www.sec.gov/Archives/edgar/data/320193/000032019324000006/ex991pressrelease.htm",
                    "size": "42 KB",
                },
            ],
            "metadata": {"total_documents": 4},
        }
    })

    accession_number: str
    documents: List[FilingDocumentInfo]
    metadata: dict = Field(default_factory=dict)


class ExhibitContentResponse(BaseModel):
    model_config = ConfigDict(json_schema_extra={
        "example": {
            "accession_number": "0000320193-24-000006",
            "exhibit_type": "EX-99.1",
            "content": "Apple Reports First Quarter Results...\nCUPERTINO, California — February 1, 2024 — Apple Inc. today announced financial results for its fiscal 2024 first quarter...",
            "content_type": "text/html",
            "filename": "ex991pressrelease.htm",
            "url": "https://www.sec.gov/Archives/edgar/data/320193/000032019324000006/ex991pressrelease.htm",
        }
    })

    accession_number: str
    exhibit_type: str
    content: str
    content_type: Optional[str] = None
    filename: Optional[str] = None
    url: Optional[str] = None


# ── Bulk filing search ──────────────────────────────────────────────────────

class BulkFilingSearchRequest(BaseModel):
    model_config = ConfigDict(json_schema_extra={
        "example": {
            "tickers": ["AAPL", "MSFT", "NVDA"],
            "form_type": "8-K",
            "start_date": "2024-01-01",
            "end_date": "2024-12-31",
            "limit_per_ticker": 5,
        }
    })

    tickers: List[str] = Field(..., min_length=1, max_length=200)
    form_type: Optional[str] = None
    start_date: Optional[str] = None
    end_date: Optional[str] = None
    limit_per_ticker: int = Field(default=20, ge=1, le=100)


class BulkFilingSearchItem(BaseModel):
    ticker: str
    success: bool
    filings: List[FilingSummary] = []
    total_count: int = 0
    error: Optional[str] = None


class BulkFilingSearchResponse(BaseModel):
    results: List[BulkFilingSearchItem]
    total_tickers: int
    successful_count: int
    failed_count: int
    query_time_seconds: float
    metadata: Dict[str, Any] = Field(default_factory=dict)


# ── Bulk exhibit ────────────────────────────────────────────────────────────

class BulkExhibitRequest(BaseModel):
    model_config = ConfigDict(json_schema_extra={
        "example": {
            "items": [
                {"accession_number": "0000320193-24-000006", "exhibit_type": "EX-99.1"},
                {"accession_number": "0001045810-24-000010", "exhibit_type": "EX-99.1"},
            ]
        }
    })

    items: List[Dict[str, str]] = Field(..., min_length=1, max_length=50)
    # Each item: {"accession_number": "...", "exhibit_type": "EX-99.1"}


class BulkExhibitItem(BaseModel):
    accession_number: str
    exhibit_type: str
    success: bool
    content: Optional[str] = None
    content_type: Optional[str] = None
    filename: Optional[str] = None
    url: Optional[str] = None
    error: Optional[str] = None


class BulkExhibitResponse(BaseModel):
    results: List[BulkExhibitItem]
    total_items: int
    successful_count: int
    failed_count: int
    query_time_seconds: float


# ── Filing Events ────────────────────────────────────────────────────────────

class FilingEventResponse(BaseModel):
    model_config = ConfigDict(json_schema_extra={
        "example": {
            "id": "550e8400-e29b-41d4-a716-446655440000",
            "ticker": "AVGO",
            "accession_number": "0001193125-26-144028",
            "form_type": "8-K",
            "filing_date": "2026-04-06",
            "item_number": "8.01",
            "event_type": "other_material_event",
            "title": "Other Events",
            "summary": "Broadcom Inc. and Google LLC have entered into a Long Term Agreement...",
            "content_source": "primary_doc",
        }
    })

    id: str
    ticker: str
    accession_number: str
    form_type: str
    filing_date: str
    item_number: str
    event_type: str
    title: Optional[str] = None
    summary: Optional[str] = None
    content_source: Optional[str] = None


class FilingEventsSearchResponse(BaseModel):
    ticker: str
    events: List[FilingEventResponse]
    total_count: int
    metadata: Dict[str, Any] = Field(default_factory=dict)


class BulkParseRequest(BaseModel):
    model_config = ConfigDict(json_schema_extra={
        "example": {"tickers": ["AVGO", "AAPL"], "limit": 50}
    })

    tickers: Optional[List[str]] = None  # None = all pending
    limit: int = Field(default=100, ge=1, le=1000)


class BulkParseResponse(BaseModel):
    succeeded: int
    failed: int
    skipped: int
    total: int
    query_time_seconds: float