#!/usr/bin/env bash
# Fails CI if version state is inconsistent across the workspace, npm
# wrapper, and Cargo.lock. Run on every push/PR so silent drift can't ship.
#
# Checks performed:
#   1. No `crates/*/Cargo.toml` carries a literal `version = "x.y.z"`; every
#      crate must inherit `version.workspace = true`.
#   2. `npm/codewhale/package.json` `version` matches the workspace
#      `version` in the root `Cargo.toml`. (`npm/deepseek-tui/` still
#      exists during the transition as a deprecation shim package; its
#      version is also checked.)
#   3. Internal `codewhale-*` path dependency pins match the workspace version.
#   4. The TUI crate's packaged changelog copy matches root `CHANGELOG.md`.
#   5. The current release has a dated Keep a Changelog entry and compare link.
#   6. README contributor additions are mentioned in the current release entry.
#   7. `SECURITY.md` keeps the dedicated security contact.
#   8. `Cargo.lock` is in sync with the manifests (`cargo metadata --locked`
#      fails if not).
set -euo pipefail

cd "$(dirname "$0")/../.."

fail=0

# 1) Literal versions in crate manifests.
literals="$(grep -nE '^version = "' crates/*/Cargo.toml || true)"
if [[ -n "${literals}" ]]; then
  echo "::error::Crate manifests must use 'version.workspace = true', not literal versions:" >&2
  echo "${literals}" >&2
  fail=1
fi

# 2) Workspace ↔ npm package.json.
workspace_version="$(grep -E '^version = "' Cargo.toml | head -n1 | sed -E 's/^version = "([^"]+)".*/\1/')"
npm_version="$(node -p "require('./npm/codewhale/package.json').version")"
if [[ "${workspace_version}" != "${npm_version}" ]]; then
  echo "::error::npm/codewhale/package.json version (${npm_version}) does not match workspace Cargo.toml (${workspace_version})." >&2
  fail=1
fi
# Also pin the legacy deprecation shim package to the same workspace version
# so a stale `deepseek-tui` doesn't ship pointing at a different release.
if [[ -f npm/deepseek-tui/package.json ]]; then
  legacy_npm_version="$(node -p "require('./npm/deepseek-tui/package.json').version")"
  if [[ "${workspace_version}" != "${legacy_npm_version}" ]]; then
    echo "::error::npm/deepseek-tui/package.json version (${legacy_npm_version}) does not match workspace Cargo.toml (${workspace_version})." >&2
    fail=1
  fi
fi

# 3) Internal path dependency pins.
internal_dep_drift="$(
  grep -nE 'codewhale-[a-z-]+[[:space:]]*=[[:space:]]*\{[^}]*version[[:space:]]*=[[:space:]]*"' crates/*/Cargo.toml \
    | grep -v "version[[:space:]]*=[[:space:]]*\"${workspace_version}\"" || true
)"
if [[ -n "${internal_dep_drift}" ]]; then
  echo "::error::Internal codewhale-* path dependency versions must match workspace version ${workspace_version}:" >&2
  echo "${internal_dep_drift}" >&2
  fail=1
fi

# 4) Packaged TUI changelog copy.
if ! cmp -s CHANGELOG.md crates/tui/CHANGELOG.md; then
  echo "::error::crates/tui/CHANGELOG.md must match root CHANGELOG.md for crates.io packaging." >&2
  echo "Run: cp CHANGELOG.md crates/tui/CHANGELOG.md" >&2
  fail=1
fi

# 5) Current release-note shape.
current_section="$(
  awk -v version="${workspace_version}" '
    index($0, "## [" version "] - ") == 1 { in_section = 1; print; next }
    in_section && /^## \[/ { exit }
    in_section { print }
  ' CHANGELOG.md
)"
if [[ -z "${current_section}" ]]; then
  echo "::error::CHANGELOG.md must contain a section for ${workspace_version}." >&2
  fail=1
else
  if ! grep -qE "^## \\[${workspace_version}\\] - [0-9]{4}-[0-9]{2}-[0-9]{2}$" <<<"${current_section}"; then
    echo "::error::CHANGELOG.md section ${workspace_version} must use '## [${workspace_version}] - YYYY-MM-DD'." >&2
    fail=1
  fi
  if ! grep -qE "^### (Added|Changed|Deprecated|Removed|Fixed|Security)$" <<<"${current_section}"; then
    echo "::error::CHANGELOG.md section ${workspace_version} must contain at least one Keep a Changelog subsection." >&2
    fail=1
  fi
fi

compare_line="$(grep -E "^\\[${workspace_version}\\]: " CHANGELOG.md || true)"
if [[ -z "${compare_line}" ]]; then
  echo "::error::CHANGELOG.md must include a compare link for ${workspace_version}." >&2
  fail=1
fi

# 6) Contributor-credit cross-check for README additions on the release branch.
# This cannot prove every external PR author has been credited, but it does
# catch the common release-polish failure mode: adding a README contributor row
# without mentioning that credit/correction in the current release entry.
previous_tag=""
current_tag="v${workspace_version}"
if [[ "${compare_line}" =~ compare/(v[0-9]+\.[0-9]+\.[0-9]+)\.\.\.${current_tag} ]]; then
  previous_tag="${BASH_REMATCH[1]}"
fi
if [[ -n "${previous_tag}" ]]; then
  if ! git rev-parse -q --verify "refs/tags/${previous_tag}" >/dev/null; then
    git fetch --quiet --depth=1 origin "refs/tags/${previous_tag}:refs/tags/${previous_tag}" || true
  fi
  if git rev-parse -q --verify "refs/tags/${previous_tag}" >/dev/null; then
    while IFS= read -r line; do
      [[ -z "${line}" ]] && continue
      handle="$(sed -E 's#.*github.com/([^)/]+).*#\1#' <<<"${line}")"
      if [[ -n "${handle}" && "${handle}" != "${line}" ]]; then
        if ! grep -Fq "github.com/${handle}" <<<"${current_section}" && ! grep -Fq "@${handle}" <<<"${current_section}"; then
          echo "::error::README.md adds contributor @${handle}, but CHANGELOG.md ${workspace_version} does not mention that credit." >&2
          fail=1
        fi
      fi
    done < <(
      git diff "${previous_tag}..HEAD" -- README.md \
        | grep -E '^\+[-*] \*\*\[[^]]+\]\(https://github.com/[^)]+\)\*\*' || true
    )
  fi
fi

# 7) Security contact guard.
security_email="security@deepseek-tui.com"
if ! grep -qF "${security_email}" SECURITY.md; then
  echo "::error::SECURITY.md must list ${security_email} as the security contact." >&2
  fail=1
fi
if grep -qF "hmbown.dev@gmail.com" SECURITY.md; then
  echo "::error::SECURITY.md must not use the personal fallback email; use ${security_email}." >&2
  fail=1
fi

# 8) Cargo.lock in sync.
if ! cargo metadata --locked --format-version 1 --no-deps >/dev/null 2>&1; then
  echo "::error::Cargo.lock is out of sync with the manifests. Run 'cargo update -p codewhale-tui' or 'cargo build' and commit the result." >&2
  fail=1
fi

if [[ "${fail}" -eq 0 ]]; then
  echo "Version state OK: workspace=${workspace_version}, npm=${npm_version}, lockfile in sync."
fi

exit "${fail}"
