from __future__ import annotations

from flask import Blueprint, abort, redirect, render_template, request, url_for, jsonify, current_app

from app.services.notes_fs import create_note, list_notes, load_note_by_id, update_note_body
from app.services.renderer import render_markdown
from app.services.vault import Vault
import frontmatter
import os

bp = Blueprint("notes", __name__, url_prefix="/notes")

# ... keep your existing routes ...

# Debug endpoints remain available while app.debug is True or KB_ENABLE_DEBUG_ROUTES is True

@bp.get("/_debug/ids")
def notes_debug_ids():
    if not (current_app.debug or current_app.config.get("KB_ENABLE_DEBUG_ROUTES", False)):
        abort(404)
    notes = list_notes()
    return jsonify(
        notes=[{"id": n.id, "title": n.title, "path": n.rel_path} for n in notes]
    )


@bp.get("/_debug/scan")
def notes_debug_scan():
    if not (current_app.debug or current_app.config.get("KB_ENABLE_DEBUG_ROUTES", False)):
        abort(404)

    vault_path = current_app.config.get("KB_VAULT_PATH")
    v = Vault(vault_path)
    v.ensure_structure()
    notes_dir = v.paths.notes

    exists = os.path.isdir(notes_dir)
    ls_notes = []
    if exists:
        try:
            ls_notes = sorted(os.listdir(notes_dir))
        except Exception as e:
            ls_notes = [f"<error listing dir: {e}>"]

    discovered = list(v.iter_markdown_files())

    probe = []
    for p in discovered:
        try:
            with open(p, "r", encoding="utf-8", errors="replace") as f:
                post = frontmatter.loads(f.read())
            meta = post.metadata or {}
            probe.append({
                "path": p,
                "ok": True,
                "id": meta.get("id"),
                "title": meta.get("title"),
            })
        except Exception as e:
            probe.append({
                "path": p,
                "ok": False,
                "error": str(e),
            })

    return jsonify({
        "vault": vault_path,
        "notes_dir": notes_dir,
        "notes_dir_exists": exists,
        "notes_dir_list": ls_notes,
        "discovered_md_files": discovered,
        "probe": probe,
    })