#!/usr/bin/with-contenv bashio
# shellcheck shell=bash
# shellcheck disable=

#########################
# MOUNT SMB SHARES v1.6 #
#########################
if bashio::config.has_value 'networkdisks'; then

  # Define variables
  MOREDISKS=$(bashio::config 'networkdisks')
  CIFS_USERNAME=$(bashio::config 'cifsusername')
  CIFS_PASSWORD=$(bashio::config 'cifspassword')
  MOUNTED=false
  SMBVERS=""
  SECVERS=""

  # Mount CIFS Share if configured and if Protection Mode is active
  echo 'Mounting smb share(s)...'

  if bashio::config.has_value 'cifsdomain'; then
    DOMAIN=",domain=$(bashio::config 'cifsdomain')"
  else
    DOMAIN=""
  fi

  # Mounting disks
  # shellcheck disable=SC2086
  for disk in ${MOREDISKS//,/ }; do # Separate comma separated values

    # Clean name of network share
    # shellcheck disable=SC2116,SC2001
    disk=$(echo $disk | sed "s,/$,,") # Remove / at end of name
    diskname="${disk//\\//}"            #replace \ with /
    diskname="${diskname##*/}"          # Get only last part of the name

    # Data validation
    if [[ ! $disk =~ ^.*+[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+[/]+.*+$ ]]; then
      bashio::log.fatal "The structure of your \"networkdisks\" option : \"$disk\" doesn't seem correct, please use a structure like //123.12.12.12/sharedfolder,//123.12.12.12/sharedfolder2. If you don't use it, you can simply remove the text, this will avoid this error message in the future."
      exit 0
    fi

    # Prepare mount point
    mkdir -p /mnt/"$diskname"
    chown -R root:root /mnt/"$diskname"

    # Tries to mount with default options
    # shellcheck disable=SC2140
    mount -t cifs -o rw,username="$CIFS_USERNAME",password="${CIFS_PASSWORD}$DOMAIN" "$disk" /mnt/"$diskname" 2>ERRORCODE && MOUNTED=true || MOUNTED=false

    # if Fail test different smb and sec versions
    if [ "$MOUNTED" = false ]; then
      for SMBVERS in ",vers=3" ",vers=1.0" ",vers=2.1" ",vers=3.0" ",nodfs" ",uid=0,gid=0,forceuid,forcegid" ",noforceuid,noforcegid" ",${DOMAIN:-WORKGROUP}"; do
        mount -t cifs -o "rw,file_mode=0777,dir_mode=0777,username=$CIFS_USERNAME,password=${CIFS_PASSWORD}$SMBVERS" "$disk" /mnt/"$diskname" 2>/dev/null && MOUNTED=true && break || MOUNTED=false
        for SECVERS in ",sec=ntlmi" ",sec=ntlmv2" ",sec=ntlmv2i" ",sec=ntlmssp" ",sec=ntlmsspi" ",sec=ntlm" ",sec=krb5i" ",sec=krb5" ",iocharset=utf8"; do
          mount -t cifs -o "rw,file_mode=0777,dir_mode=0777,username=$CIFS_USERNAME,password=${CIFS_PASSWORD}$SMBVERS$SECVERS" "$disk" /mnt/"$disk" name 2>/dev/null && MOUNTED=true && break 2 && break || MOUNTED=false
        done
      done
    fi

    # Messages
    if [ "$MOUNTED" = true ] && mountpoint -q /mnt/"$diskname"; then
      #Test write permissions
      # shellcheck disable=SC2015
      touch "/mnt/$diskname/testaze" && rm "/mnt/$diskname/testaze" &&
        bashio::log.info "... $disk successfully mounted to /mnt/$diskname with options $SMBVERS$SECVERS" ||
        bashio::log.fatal "Disk is mounted, however unable to write in the shared disk. Please check UID/GID for permissions, and if the share is rw"

    else
      # Mounting failed messages
      bashio::log.fatal "Error, unable to mount $disk to /mnt/$diskname with username $CIFS_USERNAME, $CIFS_PASSWORD. Please check your remote share path, username, password, domain, try putting 0 in UID and GID"
      bashio::log.fatal "Here is some debugging info :"

      # Provide debugging info
      smbclient -V &>/dev/null || apt-get install smbclient || apk add --no-cache samba-client
      #smbclient $disk -U $CIFS_USERNAME%$CIFS_PASSWORD  || true
      smbclient -L $disk -U "$CIFS_USERNAME%$CIFS_PASSWORD" || true

      # Error code
      bashio::log.fatal "Error read : $(<ERRORCODE)"
      rm ERRORCODE

      # clean folder
      umount "/mnt/$diskname" 2>/dev/null || true
      rmdir "/mnt/$diskname" || true
    fi

  done
fi