from datetime import datetime
from typing import Literal, Optional
import uuid
from pydantic import BaseModel, ConfigDict, Field


class KBEntryCreate(BaseModel):
    title: str
    content: str = Field(min_length=1)
    source_url: Optional[str] = None


class KBEntryResponse(BaseModel):
    # set it because we need to pass SQLAlchemy ORM object (KnowledgeBase)
    # into this model for validation
    model_config = ConfigDict(from_attributes=True)

    id: uuid.UUID
    created_at: datetime
    updated_at: datetime
    tenant_id: uuid.UUID
    title: str
    content: str
    source_url: Optional[str] = None
    origin: Literal["manual", "synced"]
    is_indexed: bool = False


class KBEntryUpdate(BaseModel):
    title: Optional[str] = None
    content: Optional[str] = Field(default=None, min_length=1)
    source_url: Optional[str] = None


class BulkUploadError(BaseModel):
    row: int
    reason: str


class BulkUploadResponse(BaseModel):
    created: int
    errors: list[BulkUploadError]


class WPSyncRequest(BaseModel):
    site_url: str
    post_type: str = "post"
    force: bool = False


class WPSyncResponse(BaseModel):
    synced: int
    errors: list[str] = []


class WPSyncPreviewEntry(BaseModel):
    title: str
    content: str
    source_url: str
    warnings: list[str] = []


class WPSyncPreviewResponse(BaseModel):
    site_url: str
    entries: list[WPSyncPreviewEntry]
    errors: list[str] = []


class WPSyncConfirmResponse(BaseModel):
    job_id: uuid.UUID


class WPSyncStatusResponse(BaseModel):
    job_id: uuid.UUID
    status: str
    source_url: str
    total: int
    processed: int
    failed: int
    error_message: Optional[str] = None
    created: int = 0
    updated: int = 0
    skipped: int = 0


class WPSingleSyncRequest(BaseModel):
    site_url: str
    source_url: str
    post_type: str = "post"
    force: bool = False


class WPSingleSyncResponse(BaseModel):
    action: Literal["created", "updated", "skipped"]
    entry: KBEntryResponse


class KBReindexResponse(BaseModel):
    task_id: str
    status: str = "queued"


class WPSyncJobControlResponse(BaseModel):
    job_id: uuid.UUID
    status: str


class WPSyncResumeResponse(BaseModel):
    original_job_id: uuid.UUID
    new_job_id: uuid.UUID