#!/bin/bash

declare -f kstore > /dev/null
if [ $? -ne 0 ]; then
	echo "kcontext depends on kstore"
	return 1
fi

complete -W "k8s docker s3-arch" kcontext 

function kcontext {
	case $1 in
		k8s) shift; kcontext-k8s "$@" ;;
		docker) shift; kcontext-docker "$@" ;;
		s3-arch) shift; kcontext-s3-arch "$@" ;;
		*)
			__func_help "k8s ..."
			__func_head "s3-arch ..."
			__func_help "docker ..."
			return 1
			;;
	esac
	return $?
}

function kcontext-s3-arch {
	local _NAME _CONFIRM _URL _AUTH
	case $1 in
		list)
			kstore query -list "SELECT SUBSTR( prop, 16 ) FROM store WHERE key = 'kcontext' AND prop LIKE 's3-arch.bucket.%'"
			;;
		save)
			_NAME=$2
			if [ -z "$_NAME" ]; then
				echo "Please specify a context name" >&2
				return 1
			fi
			if [ -n "$ARCH_S3_BUCKET_URL" ] && [ -n "$ARCH_S3_AUTH" ]; then
				kstore get "kcontext" "s3-arch.bucket.$_NAME" 2> /dev/null > /dev/null
				if [ $? -eq 0 ]; then
					read -p "Replace existing config for \"$_NAME\"? (y/n): " _CONFIRM
					if [ "$_CONFIRM" != "y" ]; then
						return 0
					fi
					kstore update "kcontext" "$ARCH_S3_BUCKET_URL" "s3-arch.bucket.$_NAME"
					kstore update "kcontext" "$ARCH_S3_AUTH" "s3-arch.auth.$_NAME"
					return $?
				else
					kstore add "kcontext" "$ARCH_S3_BUCKET_URL" "s3-arch.bucket.$_NAME"
					kstore add "kcontext" "$ARCH_S3_AUTH" "s3-arch.auth.$_NAME"
					return $?
				fi
			else
				echo "No s3-arch settings can be found in env" >&2
			fi
			;;
		load)
			_NAME=$2
			if [ -z "$_NAME" ]; then
				echo "Please specify a context name" >&2
				return 1
			fi
			_URL=$( kstore get "kcontext" "s3-arch.bucket.$_NAME" 2> /dev/null )
			if [ $? -ne 0 ]; then
				echo "No such context: $_NAME" >&2
				return 1
			fi

			_AUTH=$( kstore get "kcontext" "s3-arch.auth.$_NAME" 2> /dev/null )
			if [ $? -ne 0 ]; then
				echo "No such context: $_NAME" >&2
				return 1
			fi

			export ARCH_S3_BUCKET_URL=$_URL
			export ARCH_S3_AUTH=$_AUTH
			;;
		del)
			_NAME=$2
			if [ -z "$_NAME" ]; then
				echo "Please specify a context name" >&2
				return 1
			fi
			kstore get "kcontext" "s3-arch.bucket.$_NAME" 2> /dev/null > /dev/null
			if [ $? -eq 0 ]; then
				read -p "Delete context \"$_NAME\"? (y/n): " _CONFIRM
				if [ "$_CONFIRM" != "y" ]; then
					return 0
				fi
				kstore query "DELETE FROM store WHERE key = 'kcontext' AND prop = 's3-arch.bucket.$_NAME'"
				kstore query "DELETE FROM store WHERE key = 'kcontext' AND prop = 's3-arch.auth.$_NAME'"
				return $?
			else
				echo "No such context: $_NAME" >&2
			fi
			;;
		*)
			__func_head "list"
			__func_help "save NAME"
			__func_help "load NAME"
			__func_help "del NAME"
			;;
	esac
	return 1
}