#!/bin/bash

set -u

# Create rclone config on-the-fly in a writable location
RCLONE_CONFIG_DIR="/tmp/rclone"
mkdir -p "$RCLONE_CONFIG_DIR"
export RCLONE_CONFIG="$RCLONE_CONFIG_DIR/rclone.conf"

cat > "$RCLONE_CONFIG" << EOF
[myminio]
type = s3
provider = Minio
access_key_id = $MINIO_ACCOUNT_ID
secret_access_key = $MINIO_APPLICATION_KEY
endpoint = $MINIO_ENDPOINT
region = $MINIO_LOCATION
acl = private
no_check_bucket = true
EOF
chmod 600 "$RCLONE_CONFIG"

# All commands take full remote paths; callers own the path building.
case "${1:-}" in
	copy)
		echo "copy from $2 to $3"
		rclone copy --stats-one-line --retries 3 "$2" "$3"
	;;
	list)
		echo "list $2" >&2
		rclone ls "$2"
	;;
	size)
		# bytes of a single remote object, empty output if it does not exist
		rclone lsf --format s "$2" 2>/dev/null
	;;
	delete)
		echo "delete $2"
		rclone deletefile "$2"
	;;
	*)
		echo "usage: $0 {copy SRC DST|list PATH|size FILE|delete FILE}" >&2
		exit 2
	;;
esac