#!/bin/zsh
_DEPENDENCIES+=(
	pg_dump
)
_REQUIRED_ENV+=()
source ${0:a:h}/common.zsh
#####################################################################

BACKUP_POSTGRES() {
	local _HOST _NAME _PASS _PORT _USER
	GET_POSTGRES_LOGIN_ARGS $@

	local DATA_DIR="$SCWRYPTS_DATA_PATH/db/$_HOST/$_NAME/pg_restore"
	[ ! -d $DATA_DIR ] && mkdir -p $DATA_DIR
	cd $DATA_DIR

	local INPUT_FILE="$DATA_DIR/$_NAME.dump"

	[ ! -f $INPUT_FILE ] && {
		local DUMP="$(dirname $DATA_DIR)/pg_dump/$_NAME.dump"
		__STATUS $DUMP
		ls $DUMP

		[ -f "$DUMP" ] && {
			__SUCCESS "discovered previous scwrypts dump"
			__SUCCESS "$DUMP"
			__Yn 'restore from this backup?' && INPUT_FILE="$DUMP"
		}

		[ ! -f "$INPUT_FILE" ] && {
			__STATUS 'place backup in the following location:'
			__STATUS "$INPUT_FILE"
		}

		while [ ! -f $INPUT_FILE ]; do sleep 1; done
	}

	__STATUS "backup file : $DATA_DIR"
	__STATUS "database    : $_USER@$_HOST:$_PORT/$_NAME"

	PGPASSWORD="$_PASS" pg_restore \
		--verbose \
		--single-transaction \
		--format custom \
		--host "$_HOST" \
		--port "$_PORT" \
		--username "$_USER" \
		--dbname "$_NAME" \
		"$INPUT_FILE" \
		&& { __SUCCESS "finished restoring backup for '$_HOST/$_NAME'"; } \
		|| { __ERROR "error restoring backup for '$_HOST/$_NAME' (see above)"; return 1; }
}

#####################################################################
BACKUP_POSTGRES $@