#!/usr/bin/env sh
# G-01/G-02/G-03 generations validation, run inside the VM. Prints nina's output
# alongside ground-truth system-profile state so the host can judge pass/fail.
# Ground truth uses the SYSTEM profile explicitly (-p), which is what
# nixos-rebuild manages.
set -u
N=/root/nina

sysgens() { nix-env -p /nix/var/nix/profiles/system --list-generations 2>/dev/null | wc -l | tr -d ' '; }
syscur()  { readlink /nix/var/nix/profiles/system | sed -n 's/.*system-\([0-9][0-9]*\)-link/\1/p'; }

echo "KILN_GEN_TEST_BEGIN"
echo "GROUND before: sysgens=$(sysgens) syscur=$(syscur)"

echo "### T-001 nina apply (expect exit 0, system generation increments)"
$N apply; echo "T001_RC=$?"
echo "GROUND after apply#1: sysgens=$(sysgens) syscur=$(syscur)"

echo "### T-002 nina apply again (expect generation increments again)"
$N apply; echo "T002_RC=$?"
echo "GROUND after apply#2: sysgens=$(sysgens) syscur=$(syscur)"

echo "### T-015 nina history (expect all system generations, current marked)"
$N history; echo "HIST_RC=$?"

echo "### T-017 nina gen current (expect current system generation number)"
$N gen current; echo "GENCUR_RC=$?"

echo "### T-010 nina back (expect system generation decrements)"
$N back; echo "BACK_RC=$?"
echo "GROUND after back: syscur=$(syscur)"

echo "### T-012 nina go <syscur+1> (return forward)"
TARGET=$(( $(syscur) + 1 ))
$N go "$TARGET"; echo "GO_RC=$?"
echo "GROUND after go $TARGET: syscur=$(syscur)"

echo "### T-030 nina clean (expect exit 0, garbage collected)"
$N clean; echo "CLEAN_RC=$?"
echo "GROUND after clean: sysgens=$(sysgens)"

echo "KILN_GEN_TEST_END"