#!/usr/bin/env bash

set -euo pipefail

usage() {
  echo "Usage:"
  echo "  noteurls [N]"
  echo ""
  echo "Open URLs from latest N notes (default: 100)"
  echo ""
  echo "fzf keys:"
  echo "  TAB         select/unselect URL"
  echo "  ENTER       open selected URLs"
  echo "  CTRL-A      select all"
  echo ""
  echo "Examples:"
  echo "  noteurls"
  echo "  noteurls 20"
}

case "${1:-}" in
  h|-h|--help)
    usage
    exit 0
    ;;
esac

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

# should also work with older fzf versions
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
    powershell.exe -NoProfile -Command "Start-Process '$url'" >/dev/null 2>&1 &
    disown || true

  elif command -v xdg-open >/dev/null 2>&1; then
    xdg-open "$url" >/dev/null 2>&1 &
    disown || true

  elif command -v open >/dev/null 2>&1; then
    open "$url" >/dev/null 2>&1 &
    disown || true

  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
}

# --- collect urls ---
# Use an array instead of a string
urls_array=()
for f in "${files[@]}"; do
  while IFS= read -r url; do
    # Clean the URL
    url=$(echo "$url" | sed 's/[),.;]*$//')
    # Add to array if not empty
    if [[ -n "$url" ]]; then
      urls_array+=("$url"$'\t'"$(basename "$f")")
    fi
  done < <(rg -o 'https?://[^[:space:]>"]+' "$f" | awk '!seen[$0]++')
done

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

# shellcheck disable=SC2016
# --- fzf selection ---
# Use printf to output array elements with newlines
selection=$(printf '%s\n' "${urls_array[@]}" | fzf --multi \
          --marker='*' \
          --bind 'tab:toggle' \
          --delimiter='\t' \
          --with-nth=1,2 \
          --prompt="open urls> " \
          --preview='fold -s -w "$FZF_PREVIEW_COLUMNS" "'"$NOTES_DIR"'"/{2} 2>/dev/null' \
          --height=80% \
          --reverse)

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

# --- open selected urls - Use array for selections ---
mapfile -t selected_lines <<< "$selection"

for line in "${selected_lines[@]}"; do
  # Extract URL and file using parameter expansion
  url="${line%%$'\t'*}"
  file="${line#*$'\t'}"
  
  [[ -z "$url" ]] && continue

  echo "Opening: $url ($file)"
  open_url "$url"
  sleep 0.1
done

wait