#!/bin/sh
set -eu

dat=${1:-build/linux/dat}
ddat=${2:-build/linux/ddat}
root=$(mktemp -d /tmp/datgpt-cli-parity.XXXXXX)
trap 'rm -rf "$root"' EXIT HUP INT TERM
mkdir -p "$root/home" "$root/from-dat" "$root/from-ddat"
export HOME="$root/home"

test "$("$dat" --version)" = "$("$ddat" --version)"
"$dat" --help | grep -q '^dat '
"$ddat" --help | grep -q '^ddat '
"$dat" --help | sed 's/ddat/CLI/g; s/dat/CLI/g' > "$root/dat-help"
"$ddat" --help | sed 's/ddat/CLI/g; s/dat/CLI/g' > "$root/ddat-help"
cmp "$root/dat-help" "$root/ddat-help"

printf 'dat wrote this first\n' > "$root/from-dat/shared.txt"
"$dat" create "$root/from-dat" --title 'created by dat' > "$root/dat-url"
"$dat" sync "$root/from-dat" >/dev/null
"$ddat" status "$root/from-dat" | grep -q "$(cat "$root/dat-url")"
"$ddat" files "$root/from-dat" | grep -q shared.txt
old_dat_version=$("$ddat" log "$root/from-dat" | awk '/shared.txt/{print $1; exit}')
printf 'ddat updated this second\n' > "$root/from-dat/shared.txt"
"$ddat" sync "$root/from-dat" >/dev/null
test "$("$dat" cat "$old_dat_version" /shared.txt "$root/from-dat")" = 'dat wrote this first'
"$dat" verify "$root/from-dat" >/dev/null
"$dat" url "$old_dat_version" /shared.txt "$root/from-dat" | \
	grep -Eq '^dat://[0-9a-f]{64}\+[0-9]+/shared.txt$'
"$ddat" status "$root/from-dat" | grep -q "$(cat "$root/dat-url")"

printf 'ddat created this first\n' > "$root/from-ddat/shared.txt"
"$ddat" create "$root/from-ddat" --title 'created by ddat' > "$root/ddat-url"
"$ddat" sync "$root/from-ddat" >/dev/null
"$dat" status "$root/from-ddat" | grep -q "$(cat "$root/ddat-url")"
"$dat" files "$root/from-ddat" | grep -q shared.txt
old_ddat_version=$("$dat" log "$root/from-ddat" | awk '/shared.txt/{print $1; exit}')
printf 'dat updated this second\n' > "$root/from-ddat/shared.txt"
"$dat" sync "$root/from-ddat" >/dev/null
test "$("$ddat" cat "$old_ddat_version" /shared.txt "$root/from-ddat")" = 'ddat created this first'
"$ddat" verify "$root/from-ddat" >/dev/null
"$dat" status "$root/from-ddat" | grep -q "$(cat "$root/ddat-url")"

echo 'dat/ddat shared archive, address, read, update, and history: PASS'