#!/usr/bin/env bash

_CTX_ROOT="$PROJECT_ROOT"
_CTX_CONTAINER_ROOT="/app"
_CTX_DXKIT="${_CTX_ROOT}/dxkit"
_CTX_MODULES="${_CTX_DXKIT}/modules"
_CTX_COMMANDS="${_CTX_DXKIT}/commands"
_CTX_TEMPLATES="${_CTX_DXKIT}/templates"
_CTX_ENV="${_CTX_DXKIT}/env"
_CTX_PROJECT="${_CTX_ROOT}/.project"
_CTX_ARTIFACT="${_CTX_PROJECT}/artifacts"

# ============================================
# Wrappers
# ============================================

function ctx::require() {
  local var="$1"

  [[ -z "${!var}" ]] && {
    echo "Missing required context variable: $var" >&2
    return 1
  }
}

# ============================================
# Static Context
# ============================================

function ctx::root()            { echo "$_CTX_ROOT"; }
function ctx::dxkit()           { echo "$_CTX_DXKIT"; }
function ctx::modules()         { echo "$_CTX_MODULES"; }
function ctx::commands()        { echo "$_CTX_COMMANDS"; }
function ctx::templates()       { echo "$_CTX_TEMPLATES"; }
function ctx::env()             { echo "$_CTX_ENV"; }
function ctx::project()         { echo "$_CTX_PROJECT"; }
function ctx::artifact()        { echo "$_CTX_ARTIFACT"; }
function ctx::container::root() { echo $_CTX_CONTAINER_ROOT; }

# ============================================
# Derived Context
# ============================================

function ctx::runtime() {
#  ctx::require ENVIRONMENT || return 1
  echo "$(ctx::artifact)/$ENVIRONMENT"
}

function ctx::docker() {
  echo "$(ctx::artifact)/docker"
}

# ============================================
# Path helpers
# ============================================

function ctx::artifact::path() {
  local IFS="/"
  echo "$(ctx::artifact)/$*"
}

function ctx::container::path() {
  local base="$(ctx::container::root)"

  if [[ $# -eq 0 ]]; then
    echo "$base"
    return
  fi

  local IFS="/"
  echo "$base/$*"
}