#!/usr/bin/env bash
# This script was generated by bashly (https://github.com/DannyBen/bashly)
# Modifying it manually is not recommended

# :command.root_command
root_command() {
  # :src/root_command.sh
  #!/bin/bash
  
  echo "running root command"
  
  inspect_args
  
  # module_load ssh
  module_load confirm
  module_load path
  
  local settings=${args[--settings]}
  
  if [[ $settings ]]; then
  if [[ -f $settings ]]; then
      echo loading settings file $settings
      module_load yaml
      eval $(parse_yaml $settings "s_")
      echo $s_source
      echo $s_target
      echo $s_host
      else
      echo settings file $settings does not exist && return 1
  fi
  fi
  
  if [[ $s_server_host ]]; then
      s_server="http$([[ $s_server_secure ]] && echo "s")://${s_server_host}$([[ $s_server_port ]] &&  echo :${s_server_port} || echo "")"
  fi
  
  local password=${args[--password]:-$BACKUP_PASSWORD}
  password=${password:-$s_password}
  [[ ! $password ]] && echo restic requires a backup repository password, exiting && return 2
  password="RESTIC_PASSWORD=${password}"
  
  local server=${args[--server]:-$BACKUP_SERVER}
  server=${server:-$s_server}
  
  local hostname=${args[--hostname]:-$s_hostname}
  hostname=${hostname:-$s_host}
  hostname=${hostname:-$HOSTNAME}
  
  local options="${args[--options]:-$BACKUP_OPTIONS}"
  options="${options:-$s_options}"
  
  local smount=${args[--source_mount]:-$BACKUP_SOURCE_MOUNT}
  smount=${smount:-$s_source_mount}
  
  echo smount: $smount $s_source_mount
  
  
  local tmount=${args[--target_mount]:-$BACKUP_TARGET_MOUNT}
  tmount=${tmount:-$s_target_mount}
  
  echo tmount: $tmount $s_target_mount
  
  local source="${args[source]:-$s_source}"
  source="${source:-$s_source_path}"
  source=$(echo "${source:-$PWD}" | tr -s /)
  
  echo yaml source $s_source_path  $s_source_mount
  echo source $source
  
  echo target $s_target
  
  echo target path $s_target_path
  
  local target=${args[target]:-$s_target}
  target=${target:-$s_target_path}
  target=${target:-$(echo "${source}" | tr -s / | sed -e "s#^[.]##")}
  target="$(echo "${target}" | tr -s /)"
  echo "target> $target"
  if [[ ${tmount} ]]; then
      target="${tmount}${target}"
  else
      target="/${hostname}${target}"
  fi
  
  if [[ $server ]]; then
      target="rest:${server}${target}"
  fi
  
  if [[ $smount ]]; then
      setpath="--set-path ${source} --tag mount-point:${smount}"
      source=${smount}${source}
  fi
  
  local exclude=${args[--exclude_file]:-$BACKUP_EXCLUDE}
  exclude=${exclude:-$s_exclude}
  exclude=${exclude:-"$source/exclude.bac"}
  
  
  # local shost=$([[ ${args[--shost]} ]] && echo ${args[--shost]}::)
  # local suser=$([[ ${args[--suser]} ]] && echo ${args[--suser]}@)
  # local thost=$([[ ${args[--host]} ]] && echo ${args[--host]}::)
  # local tuser=$([[ ${args[--user]} ]] && echo ${args[--user]}@)
  
  local options=$(echo ${args[--options]} | awk '{gsub(/\\/," ")}1')
  
  local bin=$(command -v restic)
  
  exclude=$([[ -f $exclude ]] && echo "--iexclude-file $exclude" || echo "")
  
  echo source: $source
  echo target $target
  echo exclude: $exclude
  
  local sudo=$([[ ${args[--sudo]} || $s_sudo || $BACKUP_SUDO ]] && echo "sudo" || echo "")
  
  local pcmd="${sudo} ${password} ${bin} ${options} -r ${target}"
  
  local cmd="${pcmd} -H ${hostname} ${setpath} backup ${source} ${exclude}"
  
  if [[ ${args[--init]} ]]; then cmd="${pcmd} init"; fi
  if [[ ${args[--snap]} ]]; then cmd="${pcmd} snapshots"; fi
  if [[ ${args[--prune]} ]]; then cmd="${pcmd} prune"; fi
  if [[ ${args[--view]} || ${args[--view-path]} ]]; then
      mount=${args[--view-path]:-$BACKUP_MOUNT}
      mount=${mount:-"/opt/backup/view/"}
      echo view mount point $mount
      if [[ -e ${mount} ]]; then
          cmd="${pcmd} mount $mount";
          echo browse files at $mount/snapshots/latest${source}
      else
          echo $mount:  directory for mounting snapshot for viewing does not exist.  Create and try again
          return 3
      fi
  fi
  
  echo jq argument ${args[--jq]}
  if [[ ${args[--jq]} ]];then
      cmd="${cmd} | jq ${args[--jq]}"
  fi
  
  echo $cmd
  confirm run this command? || return 1
  eval $cmd
  
  # sudo chown -R $USER:$USER $target
  # sudo chown -R $USER:$USER /home/$USER/.cache/restic
  # sudo chmod -R g+rwX /home/$USER/.cache/restic
}

# :command.version_command
version_command() {
  echo "$version"
}

# :command.usage
dbackup_usage() {
  if [[ -n $long_usage ]]; then
    printf "dbackup - differential backup using restic\n"
    echo 
  else
    printf "dbackup - differential backup using restic\n"
    echo 
  fi

  printf "Usage:\n"
  printf "  dbackup [SOURCE] [TARGET] [options]\n"
  printf "  dbackup --help | -h\n"
  printf "  dbackup --version\n"
  echo

  if [[ -n $long_usage ]]; then
    printf "Options:\n"
    # :command.usage_fixed_flags
    echo "  --help, -h"
    printf "    Show this help\n"
    echo
    echo "  --version"
    printf "    Show version number\n"
    echo
    # :command.usage_flags
    # :flag.usage
    echo "  --password, -p PASSWORD"
    printf "    repo password (or file path) for backup repository\n"
    echo
    
    # :flag.usage
    echo "  --remote, -r"
    printf "    backup to a remote machine\n"
    echo
    
    # :flag.usage
    echo "  --server URL"
    printf "    url of restic rest server\n"
    echo
    
    # :flag.usage
    echo "  --init"
    printf "    initialize repo (default is backup)\n"
    echo
    
    # :flag.usage
    echo "  --snap"
    printf "    list repo snapshots\n"
    echo
    
    # :flag.usage
    echo "  --view, -v"
    printf "    mount snapshot for viewing (default is BACKUP_MOUNT or /opt/backup/view)\n"
    echo
    
    # :flag.usage
    echo "  --view-path PATH"
    printf "    set custom mount point path for viewing of snapshot, --view not required if\n    set\n"
    echo
    
    # :flag.usage
    echo "  --prune PRUNE"
    printf "    prune repo (default is backup). true for default prune or path to prune\n    settings\n"
    echo
    
    # :flag.usage
    echo "  --password, -p PASSWORD"
    printf "    repo password (or file path) for backup repository\n"
    echo
    
    # :flag.usage
    echo "  --settings, -s SYAML"
    printf "    path to settings file (yaml).  Keys are same as long\n"
    echo
    
    # :flag.usage
    echo "  --options, -o OPTIONS"
    printf "    additional options to pass ot underlying command (restic), \"quote\"\n"
    echo
    
    # :flag.usage
    echo "  --include_file, -i INCLUDE"
    printf "    include file\n"
    echo
    
    # :flag.usage
    echo "  --exclude_file, -e EXCLUDE"
    printf "    exclude file\n"
    echo
    
    # :flag.usage
    echo "  --sudo"
    printf "    run the backup as sudo\n"
    echo
    
    # :flag.usage
    echo "  --jq JQ"
    printf "    pipe to jq command\n"
    echo
    # :command.usage_args
    printf "Arguments:\n"
    
    # :argument.usage
    echo "  SOURCE"
    printf "    source directory to be backed up, default is $PWD\n"
    echo
    
    # :argument.usage
    echo "  TARGET"
    printf "    target directory for backup\n"
    echo
    # :command.usage_environment_variables
    printf "Environment Variables:\n"
    
    # :environment_variable.usage
    echo "  BACKUP_EXCLUDE"
    printf "    path to file of excludes\n"
    echo
    
    # :environment_variable.usage
    echo "  BACKUP_INCLUDE"
    printf "    path to directory of includes\n"
    echo
    
    # :environment_variable.usage
    echo "  BACKUP_SETTINGS"
    printf "    path to default settings file\n"
    echo
    
    # :environment_variable.usage
    echo "  BACKUP_PASSWORD"
    printf "    path to default settings file\n"
    echo
    
    # :environment_variable.usage
    echo "  BACKUP_SERVER"
    printf "    URL of Restic rest server\n"
    echo
    
    # :environment_variable.usage
    echo "  BACKUP_DIR"
    printf "    Backup Directory\n"
    echo
    
    # :environment_variable.usage
    echo "  BACKUP_MOUNT_POINT"
    printf "    mount point of source if mounted external to host\n"
    echo
    # :command.usage_examples
    printf "Examples:\n"
    
    printf "  backup -p password . /target/dir\n"
    printf "  backup -s  /path/to/settings/yaml/file\n"
    echo

  fi
}

# :command.normalize_input
normalize_input() {
  local arg flags

  while [[ $# -gt 0 ]]; do
    arg="$1"
    if [[ $arg =~ ^(--[a-zA-Z0-9_\-]+)=(.+)$ ]]; then
      input+=("${BASH_REMATCH[1]}")
      input+=("${BASH_REMATCH[2]}")
    elif [[ $arg =~ ^(-[a-zA-Z0-9])=(.+)$ ]]; then
      input+=("${BASH_REMATCH[1]}")
      input+=("${BASH_REMATCH[2]}")
    elif [[ $arg =~ ^-([a-zA-Z0-9][a-zA-Z0-9]+)$ ]]; then
      flags="${BASH_REMATCH[1]}"
      for (( i=0 ; i < ${#flags} ; i++ )); do
        input+=("-${flags:i:1}")
      done
    else
      input+=("$arg")
    fi

    shift
  done
}
# :command.inspect_args
inspect_args() {
  readarray -t sorted_keys < <(printf '%s\n' "${!args[@]}" | sort)
  if (( ${#args[@]} )); then
    echo args:
    for k in "${sorted_keys[@]}"; do echo "- \${args[$k]} = ${args[$k]}"; done
  else
    echo args: none
  fi

  if (( ${#other_args[@]} )); then
    echo
    echo other_args:
    echo "- \${other_args[*]} = ${other_args[*]}"
    for i in "${!other_args[@]}"; do
      echo "- \${other_args[$i]} = ${other_args[$i]}"
    done
  fi
}

# :command.command_functions

# :command.parse_requirements
parse_requirements() {
  # :command.fixed_flag_filter
  case "$1" in
  --version )
    version_command
    exit
    ;;
  
  --help | -h )
    long_usage=yes
    dbackup_usage
    exit
    ;;
  
  esac
  # :command.environment_variables_filter
  # :command.dependencies_filter
  # :command.command_filter
  action="root"
  # :command.required_args_filter
  # :command.required_flags_filter
  # :command.parse_requirements_while
  while [[ $# -gt 0 ]]; do
    key="$1"
    case "$key" in
    # :flag.case
    --password | -p )
      if [[ $2 ]]; then
        args[--password]="$2"
        shift
        shift
      else
        printf "%s\n" "--password requires an argument: --password, -p PASSWORD"
        exit 1
      fi
      ;;
  
    # :flag.case
    --remote | -r )
      args[--remote]=1
      shift
      ;;
  
    # :flag.case
    --server )
      if [[ $2 ]]; then
        args[--server]="$2"
        shift
        shift
      else
        printf "%s\n" "--server requires an argument: --server URL"
        exit 1
      fi
      ;;
  
    # :flag.case
    --init )
      args[--init]=1
      shift
      ;;
  
    # :flag.case
    --snap )
      args[--snap]=1
      shift
      ;;
  
    # :flag.case
    --view | -v )
      args[--view]=1
      shift
      ;;
  
    # :flag.case
    --view-path )
      if [[ $2 ]]; then
        args[--view-path]="$2"
        shift
        shift
      else
        printf "%s\n" "--view-path requires an argument: --view-path PATH"
        exit 1
      fi
      ;;
  
    # :flag.case
    --prune )
      if [[ $2 ]]; then
        args[--prune]="$2"
        shift
        shift
      else
        printf "%s\n" "--prune requires an argument: --prune PRUNE"
        exit 1
      fi
      ;;
  
    # :flag.case
    --password | -p )
      if [[ $2 ]]; then
        args[--password]="$2"
        shift
        shift
      else
        printf "%s\n" "--password requires an argument: --password, -p PASSWORD"
        exit 1
      fi
      ;;
  
    # :flag.case
    --settings | -s )
      if [[ $2 ]]; then
        args[--settings]="$2"
        shift
        shift
      else
        printf "%s\n" "--settings requires an argument: --settings, -s SYAML"
        exit 1
      fi
      ;;
  
    # :flag.case
    --options | -o )
      if [[ $2 ]]; then
        args[--options]="$2"
        shift
        shift
      else
        printf "%s\n" "--options requires an argument: --options, -o OPTIONS"
        exit 1
      fi
      ;;
  
    # :flag.case
    --include_file | -i )
      if [[ $2 ]]; then
        args[--include_file]="$2"
        shift
        shift
      else
        printf "%s\n" "--include_file requires an argument: --include_file, -i INCLUDE"
        exit 1
      fi
      ;;
  
    # :flag.case
    --exclude_file | -e )
      if [[ $2 ]]; then
        args[--exclude_file]="$2"
        shift
        shift
      else
        printf "%s\n" "--exclude_file requires an argument: --exclude_file, -e EXCLUDE"
        exit 1
      fi
      ;;
  
    # :flag.case
    --sudo )
      args[--sudo]=1
      shift
      ;;
  
    # :flag.case
    --jq )
      if [[ $2 ]]; then
        args[--jq]="$2"
        shift
        shift
      else
        printf "%s\n" "--jq requires an argument: --jq JQ"
        exit 1
      fi
      ;;
  
  
    -* )
      printf "invalid option: %s\n" "$key"
      exit 1
      ;;
  
    * )
      # :command.parse_requirements_case
      if [[ ! ${args[source]} ]]; then
        args[source]=$1
        shift
      elif [[ ! ${args[target]} ]]; then
        args[target]=$1
        shift
      else
        printf "invalid argument: %s\n" "$key"
        exit 1
      fi
      ;;
  
    esac
  done
  # :command.catch_all_filter
  # :command.default_assignments
  # :command.whitelist_filter
}

# :command.initialize
initialize() {
  version="0.1.0"
  long_usage=''
  set -e

  if [[ "${BASH_VERSINFO:-0}" -lt 4 ]]; then
    printf "bash version 4 or higher is required\n"
    exit 1
  fi

  # :src/initialize.sh
  # Code here runs inside the initialize() function
  # Use it for anything that you need to run before any other function, like
  # setting environment vairables:
  # CONFIG_FILE=settings.ini
  #
  # Feel free to empty (but not delete) this file.
  echo running initialize function
}

# :command.run
run() {
  declare -A args
  declare -a other_args
  declare -a input
  normalize_input "$@"
  parse_requirements "${input[@]}"

  if [[ $action == "root" ]]; then
    root_command
  fi
}

initialize
run "$@"