#!/usr/bin/env bash
# Quick structured overview of a configured Obsidian vault:
# folder structure, note count per folder, frontmatter tags in use.
#
# Usage: vault_index.sh [vault-name]
# vault-name is optional if only one vault is configured.
# The path is always resolved from ~/.agent-skills/obsidian-vault-kb/config.json —
# this script never accepts a raw filesystem path as an argument.

set -euo pipefail
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
# shellcheck source=_lib.sh
source "$SCRIPT_DIR/_lib.sh"

VAULT_NAME="${1:-}"
VAULT_RAW="$(resolve_vault_path "$VAULT_NAME")"
VAULT="$(canonicalize_and_check_dir "$VAULT_RAW")"

echo "== Vault: $VAULT =="
echo

echo "== Folder structure =="
find "$VAULT" -type d \
  -not -path '*/.obsidian*' -not -path '*/.git*' \
  | sed "s|^$VAULT||" | sort

echo
echo "== Notes per top-level folder =="
find "$VAULT" -mindepth 1 -maxdepth 1 -type d \
  -not -name '.obsidian' -not -name '.git' \
  | while read -r dir; do
      count=$(find "$dir" -name '*.md' | wc -l)
      echo "$(basename "$dir"): $count"
    done

echo
echo "== Frontmatter tags (field 'tags:') =="
if command -v rg >/dev/null 2>&1; then
  rg -o --no-filename '^tags:\s*\[?([^]]*)\]?' -r '$1' "$VAULT" 2>/dev/null \
    | tr ',' '\n' | sed 's/^\s*-\?\s*//; s/\s*$//' | sort -u | grep -v '^$' || true
else
  grep -rho '^tags:.*' "$VAULT" --include='*.md' 2>/dev/null | sort -u || true
fi

echo
echo "== Possible index/MOC files =="
find "$VAULT" -iname '*index*.md' -o -iname '*moc*.md' -o -iname '*overview*.md' 2>/dev/null || true