#!/usr/bin/env bash

HOOKS_DIR="${BASE_DIR}/hooks"
DEFAULT_OPTS_FILE="${BASE_DIR}/tmp/default_opts"
OPT_FILE="${BASE_DIR}/tmp/tamarin/opts"
OPT_PREFIX="tamarin_opt_"
LOCAL_OPTS_FILE=".tamarinrc"

# Colors

COLOR_INFO='\e[0;36m'
COLOR_FATAL='\e[0;31m'
COLOR_WARN='\e[0;33m'
COLOR_SUCCESS='\e[0;32m'
COLOR_ERR='\e[0;37m'
COLOR_OUT='\e[0;37m'
COLOR_DEBUG='\e[0;35m'

function stderr {
  if [ -z "$@" ]; then
    while read str; do
      log ERR "${str}"
    done
  else
    log stderr "$@"
  fi
}

function stdout {
  if [ -z "$@" ]; then
    while read str; do
      log OUT "${str}"
    done
  else
    log OUT "$@"
  fi
}

function info {
  if [ -z "$@" ]; then
    while read str; do
      log INFO "${str}"
    done
  else
    log INFO "$@"
  fi
}

function warn {
  if [ -z "$@" ]; then
    while read str; do
      log WARN "${str}"
    done
  else
    log WARN "$@"
  fi
}

function debug {
  if [ -z "$@" ]; then
    while read str; do
      log DEBUG "${str}"
    done
  else
    log DEBUG "$@"
  fi
}

function fatal {
  if [ -z "$@" ]; then
    while read str; do
      log FATAL "${str}" >&2
    done
  else
    log FATAL "$@" >&2
  fi
  exit 1
}

function success {
  if [ -z "$@" ]; then
    while read str; do
      log SUCCESS "${str}"
    done
  else
    log SUCCESS "$@"
  fi
}

function log {
  local args=( $@ )
  local color=COLOR_${args[0]}
  echo -e "${!color}[${args[0]}] $(remove_ansi ${args[@]:1})\e[0m"
}

function remove_ansi {
  echo "$@" | sed 's,\x1B\[[0-9;]*[a-zA-Z],,g'
}

function load_local_opts {
  if [ -e "${LOCAL_OPTS_FILE}" ]; then
    info "Loading local opts..."
    while read line; do
      if [[ ! "${line}" =~ ^\s*# ]]; then
        set -- $(echo $line | tr '=' ' ')
        local key=$1
        local value=$2
        debug "Load opt $key=$value"
        set_opt $key $value
      fi
    done < "${LOCAL_OPTS_FILE}"
  fi
}

function get_opt {
  local opt_name=${OPT_PREFIX}${1}
  local default_value=${2}
  touch "${OPT_FILE}"
  source "${OPT_FILE}"
  echo ${!opt_name:-${default_value}}
}

function set_opt {
  local opt_name=${1}
  local opt_value=${2}
  mkdir -p "$(dirname ${OPT_FILE})"
  touch "${OPT_FILE}"
  sed -i "s/^${OPT_PREFIX}${opt_name}*$//" "${OPT_FILE}"
  echo "local ${OPT_PREFIX}${opt_name}=\"${opt_value}\"" >> "${OPT_FILE}"
}

function exec_hooks {

  local hook=${1}
  local workspace=${2}

  local hook_scripts=$( find "${HOOKS_DIR}" -type f -name "*${hook}" -executable | sort )

  for hook_script in ${hook_scripts}; do

    info "[>> ${hook}] ${hook_script}"

    ( cd "${workspace}" && "${hook_script}" ) 2> >(stderr) 1> >(stdout)

    # If the script did not execute properly, we stop here
    if [ $? != 0 ]; then
      fatal "The '${hook_script}' hook script did not finished properly !"
    fi

    info "[<< ${hook}] ${hook_script}"

  done

}