#!/bin/bash


if [ -n "$BASH_VERSION" ]; then
    complete -F _obd_complete_func obd
fi


function _obd_reply_current_files() {
    filename=${cur##*/}
    dirname=${cur%*$filename}
    res=`ls -a -p $dirname 2>/dev/null | sed "s#^#$dirname#"`
    compopt -o nospace
    COMPREPLY=( $(compgen -o filenames -W "${res}" -- ${cur}) )
}


function _obd_reply_deploy_names() {
    res=`ls -p $obd_home/.obd/cluster 2>/dev/null | sed "s#/##"`
    COMPREPLY=( $(compgen -o filenames -W "${res}" -- ${cur}) )
}

function _obd_reply_tool_commands() {
    cmd_yaml=$obd_home/.obd/plugins/commands/0.1/command_template.yaml
    sections=`grep -En '^[0-9a-zA-Z]:' $cmd_yaml`
    for line in sections
    do
      num=`echo $line | awk -F ':' '{print $1}'`
      section=`echo $line | awk -F ':' '{print $2}'`
      if [[ "$section" == "commands" ]];then
        start_num=num
      elif [[ "$start_num" != "" ]];then
        end_num=num
      fi
    done
    if [[ "$end_num" == "" ]]; then
      end_num=`cat $cmd_yaml | wc -l`
    fi
    total_num=$((end_num - start_num))
    res=`grep -E '^commands:' $cmd_yaml -A $total_num | grep name | awk -F 'name:' '{print $2}' | sort -u | tr '\n' ' '`
    COMPREPLY=( $(compgen -o filenames -W "${res}" -- ${cur}) )
}

function _obd_complete_func
{

  local all_cmds
  declare -A all_cmds
  COMPREPLY=()
  obd_home=${OBD_HOME:-~}
  env_file=${obd_home}/.obd/.obd_environ
  cur="${COMP_WORDS[COMP_CWORD]}"
  prev="${COMP_WORDS[COMP_CWORD-1]}"

  all_cmds["obd"]="mirror cluster test update repo demo"
  all_cmds["obd cluster"]="autodeploy tenant start deploy redeploy restart reload destroy stop edit-config list display upgrade chst check4ocp reinstall"
  all_cmds["obd cluster *"]="_obd_reply_deploy_names"
  all_cmds["obd cluster tenant"]="create drop"
  all_cmds["obd cluster tenant *"]="_obd_reply_deploy_names"
  all_cmds["obd mirror"]="clone create list update enable disable"
  all_cmds["obd mirror clone"]="_obd_reply_current_files"
  all_cmds["obd repo"]="list"
  all_cmds["obd test"]="mysqltest sysbench tpch tpcc"
  all_cmds["obd test *"]="_obd_reply_deploy_names"

  if [ -f "$env_file" ] && [ "$(grep '"OBD_DEV_MODE": "1"' "$env_file")" != "" ]; then
      all_cmds["obd"]="${all_cmds[obd]} devmode env tool"
      all_cmds["obd devmode"]="enable disable"
      all_cmds["obd tool"]="command db_connect dooba"
      all_cmds["obd tool db_connect"]="_obd_reply_deploy_names"
      all_cmds["obd tool dooba"]="_obd_reply_deploy_names"
      all_cmds["obd tool command"]="_obd_reply_deploy_names"
      all_cmds["obd tool command *"]="_obd_reply_tool_commands"
      all_cmds["obd env"]="set unset show clear"
  fi
  case $prev in
  list)
    return 0
    ;;
  -p|--path);&
  -c|--config)
    _obd_reply_current_files
    ;;
  *)
    valid_len=$COMP_CWORD
    words=( ${COMP_WORDS[@]::valid_len} )
    index=valid_len
    while (( index >= 1 )); do
        target="${words[*]}"
        cmd=${all_cmds[$target]}
        if [[ "$cmd" != "" ]]
        then
          if [[ $cmd =~ ^_obd_reply.* ]]
          then
            $cmd
            break
          else
            COMPREPLY=( $(compgen -W "${cmd}" -- ${cur}) )
            break
          fi
        fi
        index=$(( index - 1))
        tmp=${words[*]::index}
        [[ "$tmp" != "" ]] && parent_cmd=${all_cmds[$tmp]}
        if [[ "$parent_cmd" =~ ^_obd_reply.*  || " $parent_cmd " =~ " ${words[index]} " ]]; then
          words[index]='*'
        else
          break
        fi
    done
    ;;
  esac


}