#!/bin/sh

gitern_ssh() {
    command ssh git@gitern.com "$@"
}

gitern_remote_subcommand() {
    cmd="gitern-$1"; shift
    gitern_ssh "$cmd" "$@"
}

gitern_remote_subsubcommand() {
    cmd="$1-$2"; shift; shift
    gitern_remote_subcommand "$cmd" "$@"
}

gitern__create() {
    gitern_remote_subcommand "$@"
}
gitern__delete() {
    gitern_remote_subcommand "$@"
}
gitern__list() {
    gitern_remote_subcommand "$@"
}
gitern__account() {
    gitern_remote_subcommand "$@"
}
gitern__pubkey__add() {
    if [ -z "$4" ]; then
        gitern_remote_subsubcommand "$1" "$2" "$3"
    else
        gitern_remote_subsubcommand "$1" "$2" "$3" < "$4"
    fi
}
gitern__pubkey__remove() {
    gitern_remote_subsubcommand "$1" "$2" "$4" "$3"
}
gitern__pubkey__list() {
    gitern_remote_subsubcommand "$@"
}
gitern__pubkey() {
    if [ $# -eq 1 ]; then
        gitern__help__pubkey
        exit 1
    else
        call "gitern__$1__$2" "$@"
    fi
}
gitern__help__pubkey__list() {
help="list ssh public keys

USAGE
  $ gitern pubkey list [--full] [ACCOUNT]

ARGUMENTS
  ACCOUNT  [default: all] account name

FLAGS
  --full   show full keys"
  echo "$help"
}
gitern__help__pubkey__remove() {
help="remove ssh public key

USAGE
  $ gitern pubkey remove ACCOUNT FINGERPRINT

ARGUMENTS
  ACCOUNT      account name
  FINGERPRINT  SHA256 fingerprint of public key"
  echo "$help"
}
gitern__help__pubkey__add() {
help="add ssh public key

USAGE
  $ gitern pubkey add ACCOUNT [KEYFILE]

ARGUMENTS
  ACCOUNT  account name
  KEYFILE  [default: stdin] public key file"
  echo "$help"
}
gitern__help__pubkey() {
    help="manage ssh public keys

USAGE
  $ gitern pubkey COMMAND

COMMANDS
  add     add ssh public key
  list    list ssh public keys
  remove  remove ssh public key"
  echo "$help"
}
gitern__help__account() {
  help="view account

USAGE
  $ gitern account NAME

ARGUMENTS
  NAME  account name"
  echo "$help"
}
gitern__help__list() {
    help="list repos

USAGE
  $ gitern list [PATH]

ARGUMENTS
  PATH  [default: all repos] directory path"
    echo "$help"
}
gitern__help__delete() {
    help="delete repo

USAGE
  $ gitern delete PATH

ARGUMENTS
  PATH  path including repo name"
    echo "$help"
}
gitern__help__create() {
    help="create repo

USAGE
  $ gitern create PATH

ARGUMENTS
  PATH      path including repo name

FLAGS
  --public  make repo public"
    echo "$help"
}
gitern__help() {
    if [ $# -eq 3 ]; then
        call "gitern__$1__$2__$3" "$@"
    elif [ $# -eq 2 ]; then
        call "gitern__$1__$2" "$@"
    else
        help="gitern is a git host for hackers

VERSION
  gitern/1.1.0 posix shell

USAGE
  $ gitern [COMMAND]

COMMANDS
  create  create repo
  delete  delete repo
  list    list repos
  account view account
  pubkey  manage ssh public keys
  help    display help for gitern
"
        echo "$help"
    fi
}

call() {
    func=$1
    if type "$func" 1>/dev/null 2>&1; then
        shift
        "$func" "$@"  # invoke our named function w/ all remaining arguments
    else
        gitern__help
        exit 1
    fi
}

call "gitern__$1" "$@"