#compdef repo

_repo()
{
  typeset -A opt_args
  local context state line curcontext="$curcontext"

  local ret=1

  _arguments -C \
    '(- 1 *)--help[show usage]'\
    '1:command:->command'\
    '*::args:->args' && ret=0

  case $state in
    (command)
      repo list  2> /dev/null > /dev/null
      if [[ $? == 0 ]]; then
        local commands;
        commands=(
          'abandon:Permanently abandon a development branch'
          'branch:View current topic branches'
          'branches:View current topic branches'
          'checkout:Checkout a branch for development'
          'checkout-manifest:for every project in a manifest tag file check out the sha1 listed in the file'
          'cherry-pick:Cherry-pick a change.'
          'diff:Show changes between commit and working tree'
          'download:Download and checkout a change'
          'format-patch:build patch sets for each project common to a manifest baseline'
          'grep:Print lines matching a pattern'
          'help:Display detailed help on a command'
          'init:Initialize repo in the current directory'
          'list:List projects and their associated directories'
          'overview:Display overview of unmerged project branches'
          'prune:Prune (delete) already merged topics'
          'push:Push the local branch rebase:Rebase local branches on upstream branch'
          'smartsync:Update working tree to the latest known good revision'
          'stage:Stage file(s) for commit start:Start a new branch for development'
          'status:Show the working tree status sync:Update working tree to the latest revision'
          'sync:Update working tree to the latest revision'
          'tag-manifest:for every project in a manifest tag use the sha1 listed in the file set the tagname to it'
          'upload:Upload changes for code review'
        )
        _describe -t commands 'command' commands && ret=0
      else
        local commands;
        commands=(
          'init:Install repo in the current working directory'
          'help:Display detailed help on a command'
        )
        _describe -t commands 'command' commands && ret=0
      fi
      ;;
    (args)
      
      case $words[1] in
        (branch | branches )
          # TODO : list available projects and add them in list to feed compadd with
          _arguments :::_branches_projects
        ;;
        (init)
          _arguments \
                     "(-h --help)"{-h,--help}"[Show help]" \
                     "(-q --quiet)"{-q,--quiet}"[be quiet]" \
                     "(-u --manifest-url)"{-u,--manifest-url=}"[manifest repository location]":url:_url \
                     "(-b --manifest-branch)"{-b,--manifest-branch=}"[manifest branch or revision]":branch:_branch\
                     "(-m --manifest-name)"{-m,--manifest-name=}"[initial manifest file]":manifest_name:_manifest_name\
                     "(--mirror)--mirror[mirror the forrest]"\
                     "(--reference)--reference=[location of mirror directory]":dir:_dirs\
                     "(--depth)--depth=[create a shallow clone with given depth; see git clone]":depth:_depth\
                     "(-g --group=)"{-g,--group=}"[restrict manifest projects to ones with a specified group]":group:_group\
                     "(-p --platform=)"{-p,--platform=}"[restrict manifest projects to ones with a specified platform group(auto|all|none|linux|darwin|...)]":platform:_platform\
                     "(--repo-url)--repo-url=[repo repository location]":url:_url\
                     "(--repo-branch)--repo-branch[repo branch or revision]":branch_or_rev:_branch_or_rev\
                     "(--no-repo-verify)--no-repo-verify[do not verify repo source code]"\
                     "(--config-name)--config-name[Always prompt for name/e-mail]"\
          && ret=0
        ;;
        *)
          ret=0
      esac
      ;;
  esac

  return $ret
}

_url()
{
  _message -e url 'url'
}

_platform()
{
  _message -e platform 'platform group(auto|all|none|linux|darwin|...)'
}

_manifest_name()
{
  _message -e manifest_name 'manifest name'
}

_group()
{
  _message -e group 'group'
}

_branch()
{
  _message -e branch 'branch'
}

_branch_or_rev()
{
  _message -e branch_or_rev 'repo branch or revision'
}

_depth()
{
  _message -e depth 'depth'
}

_branches_projects()
{
  _message -e depth '<projects>...'
}

_repo "$@"
return $?


#typeset -A opt_args

local context state line
local fontdir

_arguments \
    "(-l -c -r)init[Install repo in the current working directory]" \
    "(-l -c -r)help[Display detailed help on a command]" \
    && return 0


return 1