#!/usr/bin/env bash

set -euo pipefail

NOTES_DIR="${NOTES_DIR:-$HOME/notes}"
N="${1:-100}"

# this should now also work with older versions of fzf, if not comment out next line:
export FZF_DEFAULT_OPTS="--pointer='>' --color=fg:-1,bg:-1,hl:-1,fg+:-1,bg+:-1,hl+:-1,info:-1,prompt:-1,spinner:-1,pointer:-1,marker:-1,border:-1"

open_url() {
  local url="$1"

  if grep -qi microsoft /proc/version 2>/dev/null; then
    cmd.exe /c start "" "$url" >/dev/null 2>&1
  elif command -v xdg-open >/dev/null 2>&1; then
    xdg-open "$url" >/dev/null 2>&1 &
  elif command -v open >/dev/null 2>&1; then
    open "$url"
  else
    echo "No opener for: $url"
  fi
}

# --- get last N notes ---
mapfile -t files < <(
  find "$NOTES_DIR" -maxdepth 1 -type f -name '*.md' \
    -printf '%T@ %p\n' \
  | sort -nr \
  | head -n "$N" \
  | cut -d' ' -f2-
)

[[ ${#files[@]} -eq 0 ]] && {
  echo "No notes found"
  exit 0
}

# --- fzf selection ---
selection=$(
  for f in "${files[@]}"; do
    rg -o 'https?://[^ )"]+' "$f" \
      | while read -r url; do
          printf "%s\t%s\n" "$url" "$(basename "$f")"
        done
  done \
  | fzf --multi \
        --delimiter='\t' \
        --with-nth=1,2 \
        --prompt="open url> " \
        --preview='cat "'"$NOTES_DIR"'"/{2}' \
        --height=80% \
        --reverse
)

[[ -z "$selection" ]] && exit 0

# --- open selected ---
while IFS=$'\t' read -r url file; do
  echo "Opening: $url ($file)"
  open_url "$url"
done <<< "$selection"