#!/bin/sh

usage() {
  >&2 echo "$0 <mutt \$folder>"
  >&2 echo "  Generate mutt folder hooks for every maildir account in \$folder"
  exit 1
}

if [ -z "$1" ]; then
  usage
fi

acc_dir="$HOME/.config/neomutt/accounts/"
mail_dir="$1"

# Select default account
#default="$(find "$acc_dir" -name "*.mail" -printf "source '%p'\n" -quit)"

#if [ -z "$default" ]; then
#  >&2 echo "No mail accounts found in $acc_dir"
#  exit 1
#fi

# Order of the keys to use for the account switch macro
chars="1234567890azertyuiopqsdfghjklmwxcvbn"
i=1

# Setup folder hooks for all the accounts
for f in "$acc_dir"*.mail; do
  account="$(basename -s '.mail' "$f")"
  if [ ! -d "$mail_dir/$account" ]; then
    continue
  fi
  if [ -z "$default" ]; then
    default="source '$f'"
  fi
  inbox="$(find "$mail_dir/$account" -maxdepth 1 -iname "inbox" -type d -printf "%f" -quit)"
  printf 'folder-hook =%s '\''source %s'\''\n' "$account" "$f"
  key="$(printf '%s' "$chars" | cut -c "$i")"
  printf 'macro index,pager <Esc>%s "<change-folder>=%s/%s<Return>" "Change to %s Inbox"\n' \
    "$key" "$account" "$inbox" "$account"
  i=$((i+1))
done

if [ ! -z "$default" ]; then
  printf '%s\n' "$default"
fi