#!/usr/bin/env bash
set -euo pipefail

run_fix20_acceptance_subset() {
  local package_dir="$1"
  [ -d "$package_dir" ] || fail "acceptance: package dir not found: $package_dir"

  log_step "Acceptance: package layout sanity"
  [ -x "$package_dir/install.sh" ] || fail "acceptance: install.sh is missing or not executable"
  [ -x "$package_dir/orchestrator/hy2xs-orchestrator" ] || fail "acceptance: orchestrator artifact is missing"

  log_step "Acceptance: project license is shipped with the package"
  [ -f "$package_dir/LICENSE" ] || fail "acceptance: LICENSE is missing from the package"
  grep -q 'GNU AFFERO GENERAL PUBLIC LICENSE' "$package_dir/LICENSE" \
    || fail "acceptance: packaged LICENSE must be AGPL-3.0-only"
  grep -q '^license=AGPL-3.0-only$' "$package_dir/metadata/package.env" \
    || fail "acceptance: package metadata must declare license=AGPL-3.0-only"

  log_step "Acceptance: orchestrator CLI help path"
  "$package_dir/orchestrator/hy2xs-orchestrator" diagnostics collect --package-dir "$package_dir" >/dev/null 2>&1 || true

  log_step "Acceptance: firewall mode defaults in config"
  grep -q '^HY2XS_FIREWALL_MODE=' "$package_dir/config/hy2xs.env" || fail "acceptance: HY2XS_FIREWALL_MODE missing in runtime config"

  log_step "Acceptance: baseline domain/public host/ssh defaults"
  grep -q '^HY2XS_DOMAIN=fi.api.withen.pro$' "$package_dir/config/hy2xs.env" || fail "acceptance: HY2XS_DOMAIN must default to fi.api.withen.pro"
  grep -q '^HY2XS_PUBLIC_HOST=fi.api.withen.pro$' "$package_dir/config/hy2xs.env" || fail "acceptance: HY2XS_PUBLIC_HOST must default to fi.api.withen.pro"
  grep -q '^HY2XS_SSH_PORT=2323$' "$package_dir/config/hy2xs.env" || fail "acceptance: HY2XS_SSH_PORT must default to 2323"

  log_step "Acceptance: force password change production default"
  grep -q '^HY2XS_FORCE_PASSWORD_CHANGE=false$' "$package_dir/config/hy2xs.env" || fail "acceptance: HY2XS_FORCE_PASSWORD_CHANGE must default to false"

  log_step "Acceptance: config schema version is declared"
  # Значение берётся из versions.env, а не пишется числом: захардкоженная
  # двойка означала бы, что при переходе на schema 3 нужно помнить ещё и про
  # эту строку. Источник истины у схемы ровно один.
  grep -q "^HY2XS_CONFIG_SCHEMA_VERSION=${HY2XS_CONFIG_SCHEMA_VERSION}\$" "$package_dir/config/hy2xs.env" \
    || fail "acceptance: packaged baseline must declare HY2XS_CONFIG_SCHEMA_VERSION=${HY2XS_CONFIG_SCHEMA_VERSION}"

  log_step "Acceptance: public endpoint policy is declared and strict by default"
  grep -q '^HY2XS_PUBLIC_ENDPOINT_POLICY=strict$' "$package_dir/config/hy2xs.env" \
    || fail "acceptance: packaged baseline must default to HY2XS_PUBLIC_ENDPOINT_POLICY=strict"

  log_step "Acceptance: fresh install defaults to Gecko obfuscation"
  grep -q '^HY2XS_HYSTERIA_OBFS_TYPE=gecko$' "$package_dir/config/hy2xs.env" \
    || fail "acceptance: fresh installations must default to HY2XS_HYSTERIA_OBFS_TYPE=gecko"

  log_step "Acceptance: obfs type is not hardcoded in the Hysteria template"
  grep -q '{{OBFS_BLOCK}}' "$package_dir/templates/hysteria/config.yaml.tpl" \
    || fail "acceptance: hysteria template must render the obfs block from the orchestrator"
  ! grep -Eq '^\s*type:\s*(gecko|salamander)\s*$' "$package_dir/templates/hysteria/config.yaml.tpl" \
    || fail "acceptance: hysteria template must not hardcode an obfs type"

  log_step "Acceptance: modern server baseline is present in the template"
  grep -q 'disableLossCompensation: {{DISABLE_LOSS_COMPENSATION}}' "$package_dir/templates/hysteria/config.yaml.tpl" \
    || fail "acceptance: bandwidth.disableLossCompensation missing from hysteria template"
  grep -q '{{CONGESTION_BLOCK}}' "$package_dir/templates/hysteria/config.yaml.tpl" \
    || fail "acceptance: congestion block missing from hysteria template"
  grep -q '{{QUIC_BLOCK}}' "$package_dir/templates/hysteria/config.yaml.tpl" \
    || fail "acceptance: quic block missing from hysteria template"

  log_step "Acceptance: post-install env derives obfs type from resolved context"
  grep -q '^HY2_OBFS_TYPE={{OBFS_TYPE}}$' "$package_dir/templates/env/post-install.env.tpl" \
    || fail "acceptance: post-install env must render the resolved obfs type, not a second set of defaults"
  ! grep -Eq '^HY2_OBFS_TYPE=(gecko|salamander)$' "$package_dir/templates/env/post-install.env.tpl" \
    || fail "acceptance: post-install env must not hardcode an obfs type"

  log_step "Acceptance: production defaults are declared in exactly one module"
  grep -q 'DEFAULT_HYSTERIA_OBFS_TYPE' orchestrator/src/config/profile.ts \
    || fail "acceptance: the default obfs type must be declared in orchestrator/src/config/profile.ts"
  local default_declarations
  default_declarations="$(grep -rl 'DEFAULT_HYSTERIA_OBFS_TYPE\s*[:=]' orchestrator/src \
    | grep -v 'orchestrator/src/config/profile.ts' || true)"
  [ -z "$default_declarations" ] \
    || fail "acceptance: the default obfs type must not be re-declared in: $default_declarations"

  log_step "Acceptance: runtime env is derived from config, not literals"
  ! grep -Eq 'HY2XS_HYSTERIA_OBFS_TYPE=(gecko|salamander)' orchestrator/src/config/env.ts \
    || fail "acceptance: renderRuntimeEnv must not print a hardcoded obfs type"
  grep -q 'HY2XS_HYSTERIA_OBFS_TYPE=\${config.hysteriaObfsType}' orchestrator/src/config/env.ts \
    || fail "acceptance: renderRuntimeEnv must derive the obfs type from the parsed config"
  ! grep -Eq '\|\|\s*"(gecko|salamander)"' orchestrator/src/config/env.ts \
    || fail "acceptance: env.ts must not carry its own obfs fallback default"

  log_step "Acceptance: package metadata records how the Hysteria version was chosen"
  grep -q '^hysteria_resolution=' "$package_dir/metadata/package.env" \
    || fail "acceptance: metadata must record hysteria_resolution"
  grep -q '^hysteria_resolved_at=' "$package_dir/metadata/package.env" \
    || fail "acceptance: metadata must record hysteria_resolved_at"
  grep -q '^hysteria_compat_gate=true$' "$package_dir/metadata/package.env" \
    || fail "acceptance: release packages must be built with the Hysteria compatibility gate enabled"
  grep -Eq '^hysteria_artifact_url=https://github\.com/HyNetworks/hysteria/' "$package_dir/metadata/package.env" \
    || fail "acceptance: Hysteria artifact must come from the canonical HyNetworks upstream"

  log_step "Acceptance: install-time never resolves a moving latest"
  ! grep -rq 'api.github.com' orchestrator/src/commands orchestrator/src/steps \
    || fail "acceptance: install-time code must not query the upstream release API"
  ! grep -rq 'download.hysteria.network' orchestrator/src \
    || fail "acceptance: install-time code must not use the moving latest download URL"

  log_step "Acceptance: smoke verifies config semantics, not substrings"
  grep -q 'assertHysteriaConfigMatchesProfile' orchestrator/src/steps/smoke.ts \
    || fail "acceptance: smoke must verify the effective config semantically"

  log_step "Acceptance: admin export preserves unknown upstream fields and strips secrets"
  grep -q 'ExportHysteria2ConfigYaml' apps/controller/config.go \
    || fail "acceptance: hysteria config export must go through the sanitizing raw-YAML path"
  grep -q 'GetRawHysteria2Config' apps/service/hysteria2_export.go \
    || fail "acceptance: export must read the raw YAML instead of the typed model"

  log_step "Acceptance: frontend ACME registry matches current upstream"
  # Ищем именно предлагаемое значение, а не упоминание в комментарии.
  ! grep -q '"namedotcom"' apps/frontend/src/views/hysteria/list/index.vue \
    || fail "acceptance: namedotcom was removed upstream in Hysteria 2.11.0 and must not be offered"
  local provider
  for provider in cloudflare duckdns gandi godaddy namecheap njalla porkbun vultr; do
    grep -q "\"${provider}\"" apps/frontend/src/views/hysteria/list/index.vue \
      || fail "acceptance: ACME DNS provider ${provider} is missing from the UI registry"
  done

  log_step "Acceptance: systemd unit production env"
  grep -q '^Environment=GIN_MODE=release$' "$package_dir/systemd/hy2xs-admin.service" || fail "acceptance: GIN_MODE=release missing"

  log_step "Acceptance: docs matrix markers"
  grep -q 'Fix20 production matrix' docs/11-testing-and-acceptance.md || fail "acceptance: fix20 matrix section missing"

  log_step "Acceptance: machine auth URL in templates"
  grep -q '/internal/hysteria/auth?access_token={{HYSTERIA_API_SECRET}}' "$package_dir/templates/hysteria/config.yaml.tpl" || fail "acceptance: machine token missing in hysteria auth URL template"
  grep -q '^HY2_AUTH_URL=http://127.0.0.1:{{UI_PORT}}/internal/hysteria/auth?access_token={{HYSTERIA_API_SECRET}}$' "$package_dir/templates/env/post-install.env.tpl" || fail "acceptance: machine token missing in post-install HY2_AUTH_URL"

  log_step "Acceptance: smoke auth checks are tokenized"
  grep -q 'unexpected auth status without machine token' orchestrator/src/steps/smoke.ts || fail "acceptance: missing 403 negative smoke for auth without machine token"
  # Проверяется контракт, а не литерал URL.
  #
  # Регрессия приёмки: здесь стоял grep по строке
  # `hysteria2/auth?access_token=${...}`. После переезда machine-auth на
  # /internal/hysteria/auth и централизации пути в профиле такой строки в
  # smoke.ts не существует — приёмка падала на корректном коде, причём в самом
  # конце сборки, внутри verify_archive. Единственный источник истины у пути
  # один, поэтому и проверять нужно обращение к нему.
  grep -q 'HYSTERIA_MACHINE_AUTH_PATH' orchestrator/src/steps/smoke.ts \
    || fail "acceptance: smoke must take the machine-auth path from the production profile"
  grep -q 'hysteriaMachineAuthUrl(' orchestrator/src/steps/smoke.ts \
    || fail "acceptance: smoke auth URL must be built by the production helper (tokenized)"
  ! grep -Eq 'access_token=' orchestrator/src/steps/smoke.ts \
    || fail "acceptance: smoke must not assemble the machine token into a URL by hand"

  log_step "Acceptance: bootstrap peer can pass auth smoke"
  grep -q 'quota := int64(-1)' apps/dao/sqlite.go || fail "acceptance: bootstrap peer quota must be unlimited (-1), otherwise install auth smoke fails"

  log_step "Acceptance: frontend i18n does not touch Pinia at module import"
  ! grep -q 'useAppStore' apps/frontend/src/lang/index.ts || fail "acceptance: lang/index.ts must not import/use Pinia store"

  log_step "Acceptance: env rendering maps machine token and fails on unresolved placeholders"
  grep -q 'HYSTERIA_API_SECRET: context.config.hysteriaTrafficStatsSecret' orchestrator/src/steps/env.ts || fail "acceptance: writePostInstallEnv must pass HYSTERIA_API_SECRET"
  grep -q 'template render failed: unresolved placeholders' orchestrator/src/lib/fs.ts || fail "acceptance: renderTemplate must fail on unresolved placeholders"

  run_clean_install_acceptance "$package_dir"
}

# Приёмка политики clean-install-only и связанных с ней инвариантов.
run_clean_install_acceptance() {
  local package_dir="$1"

  log_step "Acceptance: installer runs a read-only preflight before touching the host"
  grep -q 'preflight-install' "$package_dir/install.sh" \
    || fail "acceptance: install.sh must run the read-only preflight before mutating the host"
  grep -q 'PHASE 0' "$package_dir/install.sh" \
    || fail "acceptance: install.sh must document the read-only phase boundary"
  grep -q 'preflightInstall' orchestrator/src/cli.ts \
    || fail "acceptance: orchestrator must expose the preflight-install command"

  log_step "Acceptance: the read-only phase is enforced by a guard, not by convention"
  grep -q 'enableReadOnlyGuard' orchestrator/src/commands/preflight-install.ts \
    || fail "acceptance: preflight-install must enable the read-only guard"
  grep -q 'assertMutationAllowed' orchestrator/src/lib/fs.ts \
    || fail "acceptance: fs writes must be guarded during the read-only phase"
  grep -q 'assertMutationAllowed' orchestrator/src/lib/process.ts \
    || fail "acceptance: mutating runners must be guarded during the read-only phase"

  log_step "Acceptance: preflight passes before the first install-state write"
  "$BUN_BIN" -e '
    const source = require("node:fs").readFileSync("orchestrator/src/commands/install.ts", "utf8");
    const preflight = source.indexOf("await preflight(context");
    const state = source.indexOf("await advanceInstallState(");
    if (preflight < 0 || state < 0) {
      throw new Error("could not locate preflight/advanceInstallState in install.ts");
    }
    if (preflight > state) {
      throw new Error("install writes install-state before preflight");
    }
  ' || fail "acceptance: install must not write install-state before a successful preflight"

  log_step "Acceptance: rollback is ownership-aware, not message-driven"
  grep -q 'classifyFailure(ownership' orchestrator/src/commands/install.ts \
    || fail "acceptance: failure classification must be driven by ownership, not by the error message"
  grep -q 'systemd units were not deployed by this operation' orchestrator/src/commands/install.ts \
    || fail "acceptance: rollback must never stop services it did not deploy"

  log_step "Acceptance: a written install-state already makes the failure post-apply"
  # Регрессия: classifyFailure не учитывал stateWritten, поэтому падение
  # apt-get объявлялось «на сервере ничего не изменено», rollback пропускался,
  # а install-state.json оставался на хосте и ломал следующую установку.
  grep -q 'ownership.stateWritten' orchestrator/src/commands/install.ts \
    || fail "acceptance: classifyFailure must account for a written install-state"
  "$BUN_BIN" -e '
    const source = require("node:fs").readFileSync("orchestrator/src/commands/install.ts", "utf8");
    const body = source.slice(source.indexOf("export function classifyFailure"));
    const preApply = body.indexOf("return \"fatal_pre_apply\"");
    const stateWritten = body.indexOf("ownership.stateWritten");
    if (preApply < 0 || stateWritten < 0) {
      throw new Error("could not locate classifyFailure branches");
    }
    if (stateWritten > preApply) {
      throw new Error("stateWritten is checked after the fatal_pre_apply fallback");
    }
  ' || fail "acceptance: fatal_pre_apply must be unreachable once install-state was written"

  log_step "Acceptance: mutating ownership flags are raised before the step, not after"
  # Флаг «шаг завершился» отвечает не на тот вопрос: apt-get умеет изменить
  # систему и упасть. Каждый флаг обязан стоять ПЕРЕД своим await.
  "$BUN_BIN" -e '
    const source = require("node:fs").readFileSync("orchestrator/src/commands/install.ts", "utf8");
    const steps = [
      ["depsTouched", "await installDeps("],
      ["filesystemTouched", "await prepareFilesystem("],
      ["uiTouched", "await deployUi("],
      ["hysteriaTouched", "await installHysteria("],
      ["configTouched", "await generateConfig("],
      ["unitsTouched", "await deploySystemd("],
      ["firewallTouched", "await applyFirewall("],
      ["postInstallTouched", "await writePostInstallEnv("],
      ["bootstrapSecretTouched", "await ensureBootstrapAdminSecret("]
    ];
    for (const [flag, call] of steps) {
      const flagAt = source.indexOf("ownership." + flag + " = true");
      const callAt = source.indexOf(call);
      if (flagAt < 0) throw new Error("missing ownership flag: " + flag);
      if (callAt < 0) throw new Error("missing step call: " + call);
      if (flagAt > callAt) throw new Error(flag + " is raised after " + call);
    }
  ' || fail "acceptance: ownership flags must be raised before the mutating step they cover"

  log_step "Acceptance: the read-only phase has no universal runner to slip through"
  # Пока существовал один `run`, под которым жили и `ss -ltn`, и `useradd`,
  # guard держался на внимательности автора правки.
  grep -q 'export async function runReadOnly' orchestrator/src/lib/process.ts \
    || fail "acceptance: process.ts must expose an explicit read-only runner"
  grep -q 'export async function runMutating' orchestrator/src/lib/process.ts \
    || fail "acceptance: process.ts must expose an explicit mutating runner"
  ! grep -rEq '(^|[^A-Za-z0-9_])(run|runVisible|runHidden|runSecret|runRawVisible)`' orchestrator/src \
    || fail "acceptance: the pre-split runner names must not come back"
  local unguarded_runner
  unguarded_runner="$(grep -c 'assertMutationAllowed' orchestrator/src/lib/process.ts || true)"
  [ "$unguarded_runner" -ge 4 ] \
    || fail "acceptance: every mutating runner must ask the read-only guard for permission"

  log_step "Acceptance: the public endpoint invariant lives in preflight, not only in doctor"
  grep -q 'assertPublicEndpoint' orchestrator/src/steps/preflight.ts \
    || fail "acceptance: preflight must verify that the public endpoint resolves to this server"
  [ -f orchestrator/src/steps/networkEndpoint.ts ] \
    || fail "acceptance: the public endpoint invariant module is missing"
  ! grep -rqE 'ifconfig\.me|ipify|checkip\.amazonaws' orchestrator/src \
    || fail "acceptance: the server address must be resolved locally, not via an external service"
  grep -q 'networkInterfaces' orchestrator/src/steps/networkEndpoint.ts \
    || fail "acceptance: local public IPv4 set must come from the host interfaces"

  log_step "Acceptance: purge and clean-host describe the same boundary"
  local purged_path
  for purged_path in /var/lib/hysteria /usr/local/lib/hy2xs /usr/local/bin/hy2xs-orchestrator /var/log/hy2xs; do
    grep -qF "$purged_path" tools/legacy/purge-v0.sh \
      || fail "acceptance: purge-v0.sh no longer removes $purged_path"
  done
  grep -qF '/var/lib/hysteria' orchestrator/src/steps/cleanHost.ts \
    || fail "acceptance: clean-host must treat leftover Hysteria runtime state as a legacy marker"
  # Symlink оркестратора остаётся маркером, но путь объявлен в профиле: его
  # создаёт steps/bootstrap.ts, и две копии строки разошлись бы.
  grep -q 'ORCHESTRATOR_SYMLINK_PATH' orchestrator/src/steps/cleanHost.ts \
    || fail "acceptance: clean-host must treat a leftover orchestrator symlink as a legacy marker"
  ! grep -q 'keep-hysteria-binary' tools/legacy/purge-v0.sh \
    || fail "acceptance: --keep-hysteria-binary contradicts the installer clean-host contract"

  log_step "Acceptance: admin secrets never reach a persistent export file"
  # Экспорт формируется в памяти: os.Create в /var/lib/hy2xs-admin/export
  # оставлял на диске JSON с расшифрованными секретами пиров.
  [ ! -f apps/util/export.go ] \
    || fail "acceptance: the file-based export helper came back"
  ! grep -rq 'ExportPathDir' apps/cmd apps/controller apps/service apps/dao apps/model apps/util \
    || fail "acceptance: the persistent export directory came back"
  grep -q 'c.Data(200, "application/octet-stream", payload)' apps/controller/peer.go \
    || fail "acceptance: peer export must be served from memory"

  log_step "Acceptance: peer import is validated as strictly as peer creation"
  grep -q 'ValidatePeerImportBatch' apps/service/peer.go \
    || fail "acceptance: peer import must validate the whole batch before writing"
  grep -q 'DisallowUnknownFields' apps/controller/peer.go \
    || fail "acceptance: peer import must reject unknown fields instead of silently defaulting"
  grep -q 'ReservedBootstrapPeerName' apps/service/peer_import.go \
    || fail "acceptance: peer import must refuse to overwrite the installer-owned bootstrap peer"

  log_step "Acceptance: missing config schema marker is treated as legacy"
  grep -q 'HY2XS_CONFIG_SCHEMA_VERSION отсутствует' orchestrator/src/config/env.ts \
    || fail "acceptance: a missing HY2XS_CONFIG_SCHEMA_VERSION must be rejected as legacy, not defaulted"

  log_step "Acceptance: reconfigure/repair verify the installation generation"
  grep -q 'assertCurrentGeneration' orchestrator/src/commands/reconfigure.ts \
    || fail "acceptance: reconfigure/repair must verify release line and config schema in install-state"
  grep -q 'release_line' orchestrator/src/lib/installState.ts \
    || fail "acceptance: install-state must carry the product release line"

  log_step "Acceptance: diagnostics redaction is structural"
  grep -q 'Bun.YAML.parse' orchestrator/src/lib/redaction.ts \
    || fail "acceptance: YAML redaction must walk the document, not match lines"
  # Регрессия: правило `.replace(/(auth:\s*).*/gi, ...)` подставляло маркер в
  # заголовок mapping'а и оставляло вложенный auth.http.url с machine token.
  ! grep -qF 'replace(/(auth:' orchestrator/src/lib/redaction.ts \
    || fail "acceptance: the line-based auth redaction rule leaked nested auth.http.url"

  log_step "Acceptance: dead updater/config-write routes stay removed"
  # Ищется регистрация маршрута (имя в кавычках), а не любое упоминание:
  # комментарий, объясняющий, почему маршрута нет, должен быть разрешён.
  #
  # Тесты исключены по той же причине, и это не послабление: router_test.go
  # ПЕРЕЧИСЛЯЕТ удалённые имена, потому что проверяет их отсутствие в таблице
  # маршрутов. Пока `*_test.go` попадал под скан, приёмка падала на собственном
  # регрессионном тесте — то есть добавление теста, закрепляющего удаление
  # маршрута, ломало сборку.
  local dead_route
  for dead_route in hysteria2ChangeVersion listRelease updateHysteria2Config importHysteria2Config restartServer uploadCertFile hysteria2AcmePath exportConfig importConfig getConfig; do
    ! grep -rqF --include='*.go' --exclude='*_test.go' "${dead_route}\"" apps/router apps/controller \
      || fail "acceptance: removed route ${dead_route} came back"
    ! grep -rqF "${dead_route}\"" apps/frontend/src/api \
      || fail "acceptance: frontend still calls the removed route ${dead_route}"
  done

  log_step "Acceptance: e2e uses the production share URI generator"
  grep -q 'tools/share-uri' tools/test/e2e-hysteria.sh \
    || fail "acceptance: e2e must build the share URI with production code"
  ! grep -q 'build_share_uri' tools/test/e2e-hysteria.sh \
    || fail "acceptance: the bash share-URI implementation must not come back"

  log_step "Acceptance: upstream checksums are verified before the lock is written"
  grep -q 'resolve_expected_sha_from_upstream' tools/build/lib/hysteria.sh \
    || fail "acceptance: the Hysteria artifact must be verified against upstream hashes.txt"

  log_step "Acceptance: toolchain checksums live in versions.env"
  grep -q '^BUN_LINUX_X64_SHA256=' versions.env \
    || fail "acceptance: versions.env must pin the Bun x64 artifact"
  grep -q '^BUN_LINUX_X64_BASELINE_SHA256=' versions.env \
    || fail "acceptance: versions.env must pin the Bun baseline artifact"
  grep -q '^GO_LINUX_AMD64_SHA256=' versions.env \
    || fail "acceptance: versions.env must pin the Go toolchain archive"
  grep -q '^NODE_LINUX_X64_SHA256=' versions.env \
    || fail "acceptance: versions.env must pin the Node.js archive"
  ! grep -q '^HYSTERIA_VERSION=' versions.env \
    || fail "acceptance: versions.env declares the Hysteria policy, not a pinned version"

  log_step "Acceptance: admin version comes from the build contract"
  grep -q 'var Version = "dev"' apps/model/constant/system.go \
    || fail "acceptance: admin version must be injected via ldflags, not hardcoded"
  grep -q 'constant.Version=v' tools/build/lib/package.sh \
    || fail "acceptance: the build must inject the admin version from versions.env"

  log_step "Acceptance: legacy cleanup is a separate, explicit helper"
  [ -f tools/legacy/purge-v0.sh ] || fail "acceptance: legacy cleanup helper is missing"
  [ -f docs/14-legacy-cleanup.md ] || fail "acceptance: legacy cleanup runbook is missing"
  ! grep -q 'purge-v0' "$package_dir/install.sh" \
    || fail "acceptance: the installer must never run destructive cleanup on its own"

  run_single_owner_acceptance "$package_dir"
  run_secret_channel_acceptance
  run_atomic_import_acceptance
  run_legacy_account_acceptance
}

# PHASE 1 принадлежит оркестратору целиком.
run_single_owner_acceptance() {
  local package_dir="$1"

  log_step "Acceptance: install.sh does not mutate the host at all"
  local mutation_hits
  mutation_hits="$(grep -nE '^[[:space:]]*(install|ln|cp|mv|rm|mkdir|chown|chmod|systemctl|apt-get|useradd|groupadd|nft|tee)[[:space:]]' \
    "$package_dir/install.sh" || true)"
  [ -z "$mutation_hits" ] \
    || fail "acceptance: install.sh must not mutate the host; PHASE 1 belongs to the orchestrator alone: $mutation_hits"
  grep -q 'exec .*install --package-dir' "$package_dir/install.sh" \
    || fail "acceptance: install.sh must hand the mutating phase over via exec"

  log_step "Acceptance: the orchestrator owns its own bootstrap"
  [ -f orchestrator/src/steps/bootstrap.ts ] \
    || fail "acceptance: the bootstrap step module is missing"
  grep -q 'ownership.bootstrapTouched' orchestrator/src/commands/install.ts \
    || fail "acceptance: bootstrap must be covered by an ownership flag"
  "$BUN_BIN" -e '
    const source = require("node:fs").readFileSync("orchestrator/src/commands/install.ts", "utf8");
    const flagAt = source.indexOf("ownership.bootstrapTouched = true");
    const callAt = source.indexOf("await bootstrapRuntime(");
    const depsAt = source.indexOf("await installDeps(");
    if (flagAt < 0 || callAt < 0) throw new Error("bootstrap step is not wired into install");
    if (flagAt > callAt) throw new Error("bootstrapTouched is raised after bootstrapRuntime");
    if (callAt > depsAt) throw new Error("bootstrap must run before installDeps");
  ' || fail "acceptance: bootstrap must be the first owned mutating step"

  log_step "Acceptance: bootstrap paths are declared once and are clean-host markers"
  grep -q 'ORCHESTRATOR_SYMLINK_PATH' orchestrator/src/steps/cleanHost.ts \
    || fail "acceptance: clean-host must take bootstrap paths from the production profile"
  grep -qF '/usr/local/bin/hy2xs-orchestrator' orchestrator/src/config/profile.ts \
    || fail "acceptance: the orchestrator symlink path must be declared in the profile"
  grep -qF '/var/lib/hysteria' orchestrator/src/steps/cleanHost.ts \
    || fail "acceptance: clean-host must treat leftover Hysteria runtime state as a legacy marker"

  log_step "Acceptance: clean-host is checked once, before the first mutation"
  # Регрессия: preflight вызывался дважды и оба раза проверял clean-host.
  # Ко второму разу на диске лежал собственный install-state.json, и каждая
  # чистая установка падала сразу после apt-get.
  ! grep -rq 'cleanHostPhase' orchestrator/src \
    || fail "acceptance: the two-tier clean-host phase hack must not come back"
  grep -q 'checkCleanHost' orchestrator/src/steps/preflight.ts \
    || fail "acceptance: preflight must take clean-host as an explicit decision"
  "$BUN_BIN" -e '
    const source = require("node:fs").readFileSync("orchestrator/src/commands/install.ts", "utf8");
    const enabled = source.split("checkCleanHost: true").length - 1;
    const disabled = source.split("checkCleanHost: false").length - 1;
    if (enabled !== 1) throw new Error("clean-host must be requested exactly once, got " + enabled);
    if (disabled !== 1) throw new Error("the capabilities pass must opt out explicitly");
    const at = source.indexOf("checkCleanHost: true");
    const state = source.indexOf("await advanceInstallState(");
    if (at > state) throw new Error("clean-host is checked after the first install-state write");
  ' || fail "acceptance: clean-host must be an entry condition, checked exactly once"

  log_step "Acceptance: diagnostics never block rollback"
  local command_file
  for command_file in orchestrator/src/commands/install.ts orchestrator/src/commands/reconfigure.ts; do
    grep -q 'catch (diagnosticsError)' "$command_file" \
      || fail "acceptance: diagnostics must be best effort in $command_file"
  done
  "$BUN_BIN" -e '
    const fs = require("node:fs");
    for (const file of [
      ["orchestrator/src/commands/install.ts", "await rollbackFailedInstall("],
      ["orchestrator/src/commands/reconfigure.ts", "await rollbackCurrentState()"]
    ]) {
      const source = fs.readFileSync(file[0], "utf8");
      const diagnostics = source.indexOf("await diagnosticsCollect(options)");
      const guard = source.indexOf("catch (diagnosticsError)");
      const rollback = source.indexOf(file[1]);
      if (diagnostics < 0 || guard < 0 || rollback < 0) throw new Error("missing markers in " + file[0]);
      if (!(diagnostics < guard && guard < rollback)) {
        throw new Error("diagnostics is not guarded before rollback in " + file[0]);
      }
    }
  ' || fail "acceptance: a diagnostics failure must never cancel the rollback"

  log_step "Acceptance: reconfigure classifies by ownership, not by message text"
  ! grep -qF '.test(message)' orchestrator/src/commands/reconfigure.ts \
    || fail "acceptance: reconfigure must not classify failures by matching the error text"
  grep -q 'classifyReconfigureFailure(ownership)' orchestrator/src/commands/reconfigure.ts \
    || fail "acceptance: reconfigure failure classification must be ownership-driven"
}

# Каналы утечки секретов: Config API и журналы.
run_secret_channel_acceptance() {
  log_step "Acceptance: config API is an allowlist, not a denylist"
  grep -q 'IsPublicReadableConfigKey' apps/controller/config.go \
    || fail "acceptance: config reads must go through the allowlist"
  grep -q 'IsPublicWritableConfigKey' apps/controller/config.go \
    || fail "acceptance: config writes must go through the allowlist"
  # Ищется регистрация и вызов, а не имя: router_test.go обязан УПОМИНАТЬ
  # getConfig — он проверяет, что маршрут не вернулся.
  ! grep -rq 'controller.GetConfig' apps/router \
    || fail "acceptance: the arbitrary-key getConfig route came back"
  ! grep -q 'func GetConfig(' apps/controller/config.go \
    || fail "acceptance: the arbitrary-key getConfig handler came back"
  ! grep -rq 'export function getConfigApi' apps/frontend/src \
    || fail "acceptance: the frontend client for getConfig came back"
  ! grep -rq 'getConfigApi(' apps/frontend/src \
    || fail "acceptance: something still calls the removed getConfig client"
  local secret_key
  for secret_key in JwtSecret PeerSecretKey PeerSecretEncryptionKey Hysteria2TrafficStatsSecret; do
    grep -q "${secret_key}," apps/model/constant/config.go \
      || fail "acceptance: ${secret_key} must be declared an internal config key"
  done
  # Секреты не имеют права оказаться в allowlist ни на чтение, ни на запись.
  "$BUN_BIN" -e '
    const source = require("node:fs").readFileSync("apps/model/constant/config.go", "utf8");
    const start = source.indexOf("publicReadableConfigKeys");
    const end = source.indexOf("func IsPublicReadableConfigKey");
    const body = source.slice(start, end);
    for (const key of ["JwtSecret", "PeerSecretKey", "PeerSecretEncryptionKey", "Hysteria2TrafficStatsSecret", "Hysteria2Config"]) {
      if (body.includes(key + ":")) throw new Error(key + " is in the public allowlist");
    }
  ' || fail "acceptance: no secret key may appear in the public config allowlist"

  log_step "Acceptance: request logging never carries query values"
  # Проверяется КОД, а не упоминание: комментарий, объясняющий, почему логгер
  # больше не пишет RequestURI, обязан быть разрешён. Поэтому строки
  # комментариев отбрасываются до поиска.
  local log_code server_code
  log_code="$(grep -v '^[[:space:]]*//' apps/middleware/log.go || true)"
  server_code="$(grep -v '^[[:space:]]*//' apps/cmd/server.go || true)"

  printf '%s\n' "$log_code" | grep -q 'c.Request.URL.Path' \
    || fail "acceptance: the request logger must log the path, not RequestURI"
  ! printf '%s\n' "$log_code" | grep -q 'RequestURI' \
    || fail "acceptance: RequestURI carries the machine token in its query string"
  ! grep -rq 'ReqUri' apps/model/vo apps/frontend/src/api \
    || fail "acceptance: the reqUri log field came back"

  log_step "Acceptance: the admin has exactly one HTTP log channel"
  ! printf '%s\n' "$server_code" | grep -q 'gin.Default()' \
    || fail "acceptance: gin.Default() logs the query string to stdout and then to journald"
  printf '%s\n' "$server_code" | grep -q 'gin.New()' \
    || fail "acceptance: the admin engine must be built with gin.New()"
  printf '%s\n' "$server_code" | grep -q 'gin.Recovery()' \
    || fail "acceptance: gin.New() must still install the recovery middleware"

  log_step "Acceptance: exported logs are sanitized on both sides"
  grep -q 'SanitizeLogText' apps/service/journal.go \
    || fail "acceptance: exported Hysteria journal must be sanitized"
  grep -q 'redactLogText' orchestrator/src/commands/diagnostics.ts \
    || fail "acceptance: diagnostics bundle must sanitize collected journals"
  grep -q 'journal-admin.log' orchestrator/src/commands/diagnostics.ts \
    || fail "acceptance: the admin journal must be part of the sanitized set"

  log_step "Acceptance: machine token comparison is constant time"
  grep -q 'subtle.ConstantTimeCompare' apps/middleware/machine_auth.go \
    || fail "acceptance: the machine token must be compared in constant time"
}

# Импорт пиров: одна транзакция и ровно один JSON-документ.
run_atomic_import_acceptance() {
  log_step "Acceptance: peer import is a single database transaction"
  grep -q 'WithPeerTx' apps/service/peer.go \
    || fail "acceptance: peer import must apply the whole batch in one transaction"
  grep -q 'func WithPeerTx' apps/dao/peer.go \
    || fail "acceptance: the peer transaction boundary is missing from the dao layer"
  grep -q 'sqliteDB.Transaction' apps/dao/peer.go \
    || fail "acceptance: WithPeerTx must open a real database transaction"
  # Применение обязано идти по tx, а не по глобальному соединению.
  "$BUN_BIN" -e '
    const source = require("node:fs").readFileSync("apps/service/peer.go", "utf8");
    const start = source.indexOf("func applyPeerImportEntry");
    if (start < 0) throw new Error("applyPeerImportEntry is missing");
    const body = source.slice(start);
    for (const call of ["dao.GetPeer(", "dao.SavePeer(", "dao.UpdatePeer("]) {
      if (body.includes(call)) throw new Error("peer import still writes outside the transaction: " + call);
    }
  ' || fail "acceptance: peer import must not bypass the transaction"

  log_step "Acceptance: peer import accepts exactly one JSON document"
  grep -q 'io.EOF' apps/controller/peer.go \
    || fail "acceptance: peer import must verify that nothing follows the JSON document"
  grep -q 'exactly one JSON document' apps/controller/peer.go \
    || fail "acceptance: the trailing-document refusal must be explicit"

  log_step "Acceptance: peer export offers both modes in the UI"
  grep -q 'includeSecrets' apps/frontend/src/api/peer/index.ts \
    || fail "acceptance: the UI must be able to request a secrets-bearing backup"
  grep -q 'handleExportBackup' apps/frontend/src/views/peer/list/index.vue \
    || fail "acceptance: the backup export button is missing"
  grep -q 'exportBackupConfirm' apps/frontend/src/views/peer/list/index.vue \
    || fail "acceptance: a secrets-bearing export must require explicit confirmation"
  local locale
  for locale in ru en; do
    grep -q 'exportBackupConfirm' "apps/frontend/src/lang/package/${locale}.ts" \
      || fail "acceptance: the backup warning is missing from the ${locale} locale"
  done
}

# Compatibility-слой предыдущего поколения не должен пережить 1.0.
run_legacy_account_acceptance() {
  log_step "Acceptance: the legacy account layer is gone from the runtime"
  [ ! -f apps/model/entity/account.go ] \
    || fail "acceptance: the LegacyAccount entity came back"
  # Каталоги перечислены явно: рекурсия по apps захватила бы
  # apps/frontend/node_modules, который к этому шагу сборки уже существует.
  ! grep -rq 'LegacyAccount' apps/dao apps/model apps/service apps/controller apps/cmd \
    || fail "acceptance: legacy account migration code came back"
  # Ищется запись в списке миграций (имя в кавычках), а не упоминание:
  # комментарий, объясняющий, почему миграции удалены, должен быть разрешён.
  local dead_migration
  for dead_migration in 002_migrate_legacy_accounts 003_archive_legacy_account; do
    ! grep -qF "\"${dead_migration}\"" apps/dao/sqlite.go \
      || fail "acceptance: legacy migration ${dead_migration} came back"
  done
  # Номера оставшихся миграций не перенумеровываются: они уже записаны в
  # schema_migrations на установленных машинах.
  local kept_migration
  for kept_migration in 000_base_config 001_admin_peer_split 004_traffic_samples_and_aggregates 005_metric_sample; do
    grep -qF "\"${kept_migration}\"" apps/dao/sqlite.go \
      || fail "acceptance: migration ${kept_migration} disappeared or was renumbered"
  done

  log_step "Acceptance: v1 docs carry no previous-generation vocabulary"
  # docs/14 — единственное место, где эти имена обозначают реальные объекты
  # для удаления. В обычных docs их быть не должно.
  local doc
  for doc in docs/*.md; do
    case "$doc" in
      docs/14-legacy-cleanup.md) continue ;;
    esac
    ! grep -q 'H_UI_' "$doc" \
      || fail "acceptance: previous-generation config keys leaked into $doc"
  done
}