#!/usr/bin/env rc

# Drn - rename denote note metadata
# usage: Drn [identifier] 'title' [==signature] [tags]

mnt=$DENOTE_9MOUNT
if(~ $#mnt 0) mnt=$HOME/mnt/denote
if(~ $#mnt 0) mnt=$HOME/mnt/denote

fn usage {
	echo 'usage: Drn [identifier] ''title'' [==signature] [tags]' >[1=2]
	exit usage
}

if(~ $#* 0) usage

# Check if first arg is identifier
id=()
if(~ $1 [0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]T[0-9][0-9][0-9][0-9][0-9][0-9]) {
	id=$1
	shift
}
if not {
	# Extract from window tag
	if(~ $winid '') {
		echo 'Drn: $winid not set' >[1=2]
		exit 'no winid'
	}
	tag=`{9p read acme/$winid/tag}
	id=`{echo $tag | grep -o '[0-9]\{8\}T[0-9]\{6\}'}
	if(~ $#id 0) {
		echo 'Drn: no identifier in window' >[1=2]
		exit 'no id'
	}
}

if(~ $#* 0) usage

# Parse: 'title' [==sig] [tags] or ==sig 'title' [tags]
sig=''
title=''
tags=''

# Check for leading ==signature
if(~ $1 ==*) {
	sig=`{echo $1 | sed 's/^==//'}
	shift
}

# Title is first arg
title=$1
shift

# Remaining args
for(a in $*) {
	if(~ $a ==*) {
		sig=`{echo $a | sed 's/^==//'}
	}
	if not {
		if(~ $tags '') {
			tags=$a
		}
		if not {
			tags=$tags^','$a
		}
	}
}

# Write to filesystem
echo -n $title > $mnt/n/$id/title
echo -n $tags > $mnt/n/$id/keywords
echo -n $sig > $mnt/n/$id/signature