"""
Plugin manifest and settings endpoints for doc-service.

These are internal-only — they are called by the main backend's generic plugin
proxy, never directly by the browser.  No authentication is applied here because
the backend enforces access control before forwarding the request.

Endpoints:
  GET  /plugin/manifest   → static manifest with JSON Schema for settings
  GET  /plugin/settings   → current storage config values
  PATCH /plugin/settings  → update storage config (partial update)
"""
from fastapi import APIRouter
from pydantic import BaseModel

from app.services.config_reader import get_storage_config, save_storage_config

router = APIRouter()

_MANIFEST: dict = {
    "id": "doc-service",
    "name": "Document Service",
    "icon": "file-text",
    "version": "1.0",
    "access": {
        "allow_superuser": True,
        "required_groups": ["doc-service-admin"],
    },
    "settings_schema": {
        "type": "object",
        "title": "Storage & Watch",
        "properties": {
            "watch_enabled": {
                "type": "boolean",
                "title": "Enable file watching",
                "description": (
                    "Automatically ingest PDF files added to the mounted watch directory. "
                    "Requires a service restart to take effect after toggling."
                ),
            },
            "watch_path": {
                "type": "string",
                "title": "Watch path",
                "readOnly": True,
                "description": "Configured via Docker volume mount — edit docker-compose to change.",
            },
            "ai_folder_suggestion": {
                "type": "boolean",
                "title": "AI folder suggestion",
                "description": (
                    "AI suggests a category for each ingested document. "
                    "You must confirm the suggestion before it is applied."
                ),
            },
            "ai_folder_default": {
                "type": "string",
                "title": "Default import category",
                "description": "Category assigned automatically when AI folder suggestion is disabled.",
            },
            "ai_rename_suggestion": {
                "type": "boolean",
                "title": "AI rename suggestion",
                "description": (
                    "AI suggests a document title for each ingested file. "
                    "You must confirm before it is applied."
                ),
            },
        },
    },
}


class StorageSettingsUpdate(BaseModel):
    watch_enabled: bool | None = None
    ai_folder_suggestion: bool | None = None
    ai_folder_default: str | None = None
    ai_rename_suggestion: bool | None = None
    # watch_path is intentionally excluded — it cannot be changed via API


@router.get("/manifest")
async def get_manifest() -> dict:
    return _MANIFEST


@router.get("/settings")
async def get_settings() -> dict:
    return await get_storage_config()


@router.patch("/settings")
async def update_settings(body: StorageSettingsUpdate) -> dict:
    update = body.model_dump(exclude_none=True)
    if "ai_folder_default" in update:
        update["ai_folder_default"] = update["ai_folder_default"][:128].strip() or "imports"
    await save_storage_config(update)
    return await get_storage_config()