#!/usr/bin/env bash
# test_release_push_once.sh — release-agent.sh releases a version only when the registry says it is NEW (R-1098).
#
# The REAL release-agent.sh runs from a copy inside a scratch git repo (so its tag check reads scratch tags), with
# RELEASE_ALLOW_DIRTY=1 (the clean-tree gate has its own history) and a fake `curl` and `go` first on PATH: curl answers
# the package probe as FAKE_MODE says, and `go` stops the run right after the check, so nothing is built or published.
#   published (200)        -> refused, "ALREADY PUBLISHED"
#   absent (404)           -> passes the check, reaches the build
#   unreachable (000)      -> refused, "could not establish"
#   server error (500)     -> refused, "could not establish"
#   the tag already exists -> refused, "already exists"
# Run: bash scripts/test_release_push_once.sh   (exit 0 all cases right · 1 a case wrong)
set -uo pipefail
HERE="$(cd "$(dirname "$0")" && pwd)"
WS="$(mktemp -d)"; trap 'rm -rf "${WS:?}"' EXIT
fails=0; ran=0
mkdir -p "$WS/bin" "$WS/repo/scripts"
cp "$HERE/release-agent.sh" "$WS/repo/scripts/release-agent.sh"
(cd "$WS/repo" && git init -q -b main && git -c user.name=t -c user.email=t@t commit -q --allow-empty -m init)
cat > "$WS/bin/curl" <<'FAKE'
#!/bin/bash
case "${FAKE_MODE}" in
  published) printf 200; exit 0 ;;
  absent)    printf 404; exit 22 ;;
  down)      printf 000; exit 7 ;;
  error)     printf 500; exit 22 ;;
esac
FAKE
printf '#!/bin/sh\necho "FAKE-GO-REACHED $*"; exit 1\n' > "$WS/bin/go"
chmod +x "$WS/bin/curl" "$WS/bin/go"
run() {  # name, mode, expected rc, required fragment, forbidden fragment
    local out rc
    out=$(cd "$WS/repo" && FAKE_MODE="$2" RELEASE_ALLOW_DIRTY=1 GITEA_USER=u GITEA_TOKEN=t PATH="$WS/bin:$PATH" \
          bash scripts/release-agent.sh 9.9.9 2>&1); rc=$?
    ran=$((ran+1))
    if [[ "$rc" != "$3" ]] || ! grep -qi -- "$4" <<<"$out" || { [[ -n "$5" ]] && grep -qi -- "$5" <<<"$out"; }; then
        fails=$((fails+1)); echo "  FAIL $1 (exit $rc)"; echo "$out" | tail -4 | sed 's/^/        /'; return
    fi
    echo "  ok   $1"
}
echo "release-agent.sh — a version is released once, and only when the registry says it is new"
run "published (200) -> refused"   published 1 "ALREADY PUBLISHED"     "FAKE-GO-REACHED"
run "absent (404) -> proceeds"     absent    1 "FAKE-GO-REACHED"       "could not establish"
run "unreachable (000) -> refused" down      1 "could not establish"   "FAKE-GO-REACHED"
run "server error (500) -> refused" error    1 "could not establish"   "FAKE-GO-REACHED"
(cd "$WS/repo" && git tag v9.9.9)
run "the tag exists -> refused"    absent    1 "already exists"        "FAKE-GO-REACHED"
echo
if [[ $fails -eq 0 ]]; then echo "all $ran cases behaved"; exit 0; fi
echo "$fails of $ran cases FAILED"; exit 1