#!/bin/bash
set -e
[ -n "$DEBUG" ] && set -x

# check requirements
for app in oguri ogurictl; do
	if ! command -v "$app" >/dev/null; then
		printf "%s: %s not installed but required\n" "$(basename "$0")" "$app" >&2
		exit 1
	fi
done

if ! pgrep oguri >/dev/null 2>&1; then
	printf "%s: oguri not running, aborting\n" "$(basename "$0")" >&2
	exit 1
fi

change_bg() {
	for o in "${OUTPUTS[@]}"; do
		idx=$((0 + RANDOM % ${#BGS[@]}))
		ogurictl output "${o}" \
			--image "${BGS[${idx}]}" \
			--filter best \
			--scaling-mode fill \
			--anchor center
	done
}

logger 'oguri-cycle: changing background(s)' || true

BGS_DIR=$HOME/Pictures/wallp/oguri-cycle

# OUTPUTS=("$(swq list output | jq -r '..|select(.transform?=="normal")|.name')")
readarray OUTPUTS < <(wlr-randr | awk 'BEGIN{name=""} /^\S/{name=$1} /Transform: normal/{printf name}')
readarray -d '' BGS < <(find "${BGS_DIR}"/horizontal/ -print0 2>/dev/null)
readarray -d '' BGS < <(find "${BGS_DIR}"/landscape/ -print0 2>/dev/null)

change_bg

# OUTPUTS=("$(swq list output | jq -r '..|select((.transform?=="270")or(.transform?=="90"))|.name')")
readarray OUTPUTS < <(wlr-randr | awk 'BEGIN{name=""} /^\S/{name=$1} /Transform: 90/{printf name}')
readarray -d '' BGS < <(find "${BGS_DIR}"/vertical/ -print0 2>/dev/null)
readarray -d '' BGS < <(find "${BGS_DIR}"/portrait/ -print0 2>/dev/null)

change_bg --anchor=left