from __future__ import annotations

from typing import Any, Dict, Sequence
import json

from . import register
import models
import pipeline as ctx
from API import HydrusNetwork as hydrus_wrapper
from ._shared import Cmdlet, CmdletArg, SharedArgs, normalize_hash, get_hash_for_operation, fetch_hydrus_metadata, get_field, should_show_help
from SYS.logger import log

CMDLET = Cmdlet(
    name="get-note",
    summary="List notes on a Hydrus file.",
    usage="get-note [-hash <sha256>]",
    arg=[
        SharedArgs.HASH,
    ],
    detail=[
        "- Prints notes by service and note name.",
    ],
)


@register(["get-note", "get-notes", "get_note"])  # aliases
def get_notes(result: Any, args: Sequence[str], config: Dict[str, Any]) -> int:
    # Help
    if should_show_help(args):
        log(json.dumps(CMDLET, ensure_ascii=False, indent=2))
        return 0
    
    from ._shared import parse_cmdlet_args, get_hash_for_operation, fetch_hydrus_metadata
    parsed = parse_cmdlet_args(args, CMDLET)
    override_hash = parsed.get("hash")
    
    hash_hex = get_hash_for_operation(override_hash, result)
    if not hash_hex:
        log("Selected result does not include a Hydrus hash")
        return 1
    
    meta, error_code = fetch_hydrus_metadata(config, hash_hex, include_service_keys_to_tags=False, include_notes=True)
    if error_code != 0:
        return error_code
    
    notes = {}
    if isinstance(meta, dict):
        # Hydrus returns service_keys_to_tags; for notes we expect 'service_names_to_notes' in modern API
        notes = meta.get('notes') or meta.get('service_names_to_notes') or {}
    if notes:
        ctx.emit("Notes:")
        # Print flattened: service -> (name: text)
        if isinstance(notes, dict) and any(isinstance(v, dict) for v in notes.values()):
            for svc, mapping in notes.items():
                ctx.emit(f"- {svc}:")
                if isinstance(mapping, dict):
                    for k, v in mapping.items():
                        ctx.emit(f"  • {k}: {str(v).strip()}")
        elif isinstance(notes, dict):
            for k, v in notes.items():
                ctx.emit(f"- {k}: {str(v).strip()}")
    else:
        ctx.emit("No notes found.")
    return 0