#!/usr/bin/env bash
# SPDX-License-Identifier: LicenseRef-Starship-1.0
# Copyright (c) 2023-2026 Robert A. James
# test_acceptance_signing.sh -- the gate into master (#174) and a release (Captain Bob, 2026-11-12:
# "release MUST refuse unsigned builds") refuse an unsigned build. Each workflow's step "The
# capsule-signing key" is taken from the workflow as CI runs it, and run here with and without
# CAPSULE_SIGN_KEY.
#
# Prints PASS:/FAIL: per check and RESULT:; exits 0 only if every check passes.
set -uo pipefail
ROOT="$(cd "$(dirname "$0")/.." && pwd)"
T=$(mktemp -d)
trap 'rm -rf "$T"' EXIT
ok=1

check_workflow() {  # check_workflow <workflow> <job>
    local wf=$1 job=$2 step="$T/$1.sh"
    if ! python3 - "$ROOT/.gitea/workflows/$wf.yml" "$job" "$step" <<'EOF'
import sys, yaml
steps = yaml.safe_load(open(sys.argv[1]))["jobs"][sys.argv[2]]["steps"]
run = [s["run"] for s in steps if s.get("name") == "The capsule-signing key"]
assert len(run) == 1
open(sys.argv[3], "w").write(run[0])
EOF
    then echo "FAIL: $wf: no 'The capsule-signing key' step in job $job"; ok=0; return; fi

    run_step() { : > "$T/env"; KEY="$1" GITHUB_ENV="$T/env" RUNNER_TEMP="$T" bash -e "$step" > "$T/out" 2>&1; }

    if run_step ""; then echo "FAIL: $wf: no CAPSULE_SIGN_KEY: the step passed -- an unsigned build would go on"; ok=0
    else echo "PASS: $wf: no CAPSULE_SIGN_KEY: the step fails, the unsigned build is refused"; fi
    grep -q "::error::" "$T/out" && echo "PASS: $wf: and says so as an error" || { echo "FAIL: $wf: no ::error:: line"; ok=0; }

    if run_step "-----BEGIN PRIVATE KEY----- test -----END PRIVATE KEY-----" &&
       grep -q "^SIGN_KEY=$T/capsule-signing.key$" "$T/env" && [ -s "$T/capsule-signing.key" ]; then
        echo "PASS: $wf: with a key: the step passes and hands it to the build (SIGN_KEY)"
    else echo "FAIL: $wf: with a key: the step did not pass, or did not set SIGN_KEY"; ok=0; fi
    rm -f "$T/capsule-signing.key"
}

check_workflow acceptance acceptance       # the gate into master (#174)
check_workflow release release             # a release

echo "RESULT: $([ $ok = 1 ] && echo PASS || echo FAIL)"
[ $ok = 1 ]