#!/usr/bin/env bash
#
# Android backups using MTP
#
# Overall procedure
#
#   PROFILE="profile-name"
#   PHONE="phone-name"
#   go-mtpfs ~/temp/shared/$PHONE/$PROFILE &
#   time rsync -av --delete ~/temp/shared/$PHONE/$PROFILE/ ~/sync/$PHONE/$PROFILE/
#   fusermount -u ~/temp/shared/$PHONE/$PROFILE
#

# Parameters
BASENAME="`basename $0`"
PHONE="$1"
PROFILE="$2"
SHARED="$HOME/temp/shared/$PHONE/$PROFILE"
SYNCED="$HOME/sync/$PHONE/$PROFILE"
COMMANDS="go-mtpfs rsync fusermount"

# Syntax check
if [ -z "$PROFILE" ]; then
  echo "usage: $BASENAME <phone> <profile>"

  echo ""
  echo "Overall procedure:"
  echo ""
  echo "For each user profile:"
  echo ""
  echo "1. Log into the profile on the phone."
  echo "2. Export the contacts somewhere like Backups/Contacts/contacts.vcf."
  echo "3. Run a local backup to the internal storage (to the .SeedVaultAndroidBackup folder)."
  echo "4. Run Signal and Molly backups (to the Backups folder)."
  echo "4. Mount the profile folder in the computer."
  echo "5. Sync the profile in the respective folder."
  echo ""
  echo "The last two steps are done through $BASENAME commend"

  exit 1
fi

# Commands check
for tool in $COMMANDS; do
  if ! which $tool &> /dev/null; then
    echo "error: please install $tool"
    exit 1
  fi
done

# Backup
go-mtpfs $SHARED &
time rsync -av --delete $SHARED/ $SYNCED/
fusermount -u $SHARED