#!/bin/sh
set -eu

# Top-level build script — builds all ZDDC HTML tools, the zddc-server
# binaries, and the downloadable bundles (install.zip and track-*.zip).

SCRIPT_DIR=$(cd "$(dirname "$0")" && pwd)

echo "=== Building ZDDC tools ==="

sh "$SCRIPT_DIR/transmittal/build.sh" "${1:-}" "${2:-}"
sh "$SCRIPT_DIR/archive/build.sh" "${1:-}" "${2:-}"
sh "$SCRIPT_DIR/classifier/build.sh" "${1:-}" "${2:-}"
sh "$SCRIPT_DIR/mdedit/build.sh" "${1:-}" "${2:-}"
sh "$SCRIPT_DIR/landing/build.sh" "${1:-}" "${2:-}"

echo ""
echo "=== Assembling zddc/dist/web/ ==="
# Only landing and archive ship inside the server bundle: they call the
# server's JSON API (GET / for the project list, directory listings for the
# archive) and are useless without it. transmittal, classifier, and mdedit
# are pure client-side tools that work from file:// or any static host;
# they are released to website/ for download but not bundled with the server.
mkdir -p "$SCRIPT_DIR/zddc/dist/web"
cp "$SCRIPT_DIR/landing/dist/index.html"   "$SCRIPT_DIR/zddc/dist/web/index.html"
cp "$SCRIPT_DIR/archive/dist/archive.html" "$SCRIPT_DIR/zddc/dist/web/archive.html"
echo "Wrote zddc/dist/web/index.html"
echo "Wrote zddc/dist/web/archive.html"

# Cross-compiled zddc-server binaries are built via podman if available
# (no-op otherwise — CI builds the runtime container directly via the
# Containerfile's builder stage and doesn't need host-side binaries).
echo ""
echo "=== Building zddc-server binaries ==="
if command -v podman >/dev/null 2>&1; then
    podman build --target binaries -o "$SCRIPT_DIR/zddc/dist/" "$SCRIPT_DIR/zddc/" 2>&1 | grep -v "^-->"
else
    echo "podman not found — skipping cross-compiled binary build."
    echo "  (CI builds the container image directly; this step only matters"
    echo "   for releasing the standalone Linux/macOS/Windows binaries.)"
fi

# ─── Bootstrap zips ──────────────────────────────────────────────────────────
# Generated from bootstrap/level{1,2}.html.tmpl on every build so they are
# always in sync with the current bootstrap pattern.
#
#   install.zip          — drop into deployment root for self-contained install.
#                          Contains the 5 current-stable HTMLs at root plus a
#                          _template/ directory with 4 level-1 stubs that
#                          projects can use as their starting layout.
#   track-<channel>.zip  — drop the level-2 stubs over deployment root to make
#                          the whole site track <channel> from zddc.varasys.io.
#
# install.zip needs at least one stable release to exist under
# website/releases/; if none exist yet, that zip is skipped with a warning.

WEBSITE_DIR="$SCRIPT_DIR/website"
RELEASES_DIR="$WEBSITE_DIR/releases"
BOOTSTRAP_DIR="$SCRIPT_DIR/bootstrap"

mkdir -p "$WEBSITE_DIR"

# tool|filename|title
TOOL_TABLE='archive|archive.html|Archive
transmittal|transmittal.html|Transmittal
classifier|classifier.html|Classifier
mdedit|mdedit.html|Markdown Editor
landing|index.html|ZDDC'

# Substitute {{TOOL}}, {{TOOL_TITLE}}, {{CHANNEL}} in a template.
# Substitute {{TOOL}}, {{TOOL_TITLE}}, {{CHANNEL}} in a template.
render_stub() {
    sed \
        -e "s|{{TOOL_TITLE}}|$3|g" \
        -e "s|{{TOOL}}|$2|g" \
        -e "s|{{CHANNEL}}|${4:-}|g" \
        "$1" > "$5"
}

build_install_zip() {
    # Verify a stable release exists for every tool before staging.
    _missing=""
    while IFS='|' read -r _tool _file _title; do
        [ -e "$RELEASES_DIR/${_tool}_stable.html" ] || _missing="$_missing $_tool"
    done <<EOF
$TOOL_TABLE
EOF

    if [ -n "$_missing" ]; then
        echo "Skipping install.zip — no stable release for:$_missing"
        return 0
    fi

    _staging=$(mktemp -d)
    while IFS='|' read -r _tool _file _title; do
        cp "$RELEASES_DIR/${_tool}_stable.html" "$_staging/$_file"
    done <<EOF
$TOOL_TABLE
EOF

    # _template/ holds level-1 bootstraps for the four interactive tools
    # (landing only lives at deployment root; project directories do not
    # have their own landing page).
    mkdir -p "$_staging/_template"
    while IFS='|' read -r _tool _file _title; do
        render_stub "$BOOTSTRAP_DIR/level1.html.tmpl" "$_tool" "$_title" "" "$_staging/_template/$_file"
    done <<EOF
archive|archive.html|Archive
transmittal|transmittal.html|Transmittal
classifier|classifier.html|Classifier
mdedit|mdedit.html|Markdown Editor
EOF

    cp "$BOOTSTRAP_DIR/README.md" "$_staging/README.md"

    rm -f "$WEBSITE_DIR/install.zip"
    (cd "$_staging" && zip -qr "$WEBSITE_DIR/install.zip" .)
    echo "Wrote $WEBSITE_DIR/install.zip"
    rm -rf "$_staging"
}

build_track_zip() {
    _channel="$1"
    _staging=$(mktemp -d)
    while IFS='|' read -r _tool _file _title; do
        render_stub "$BOOTSTRAP_DIR/level2.html.tmpl" "$_tool" "$_title" "$_channel" "$_staging/$_file"
    done <<EOF
$TOOL_TABLE
EOF

    rm -f "$WEBSITE_DIR/track-$_channel.zip"
    (cd "$_staging" && zip -qr "$WEBSITE_DIR/track-$_channel.zip" .)
    echo "Wrote $WEBSITE_DIR/track-$_channel.zip"
    rm -rf "$_staging"
}

# Regenerate website/releases/index.html — a static directory listing of
# all tool releases with channel rows + per-version archive links. Read
# from the filesystem so the page is always consistent with what's there.
build_releases_index() {
    _out="$RELEASES_DIR/index.html"
    {
        cat <<'HEAD'
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Releases — ZDDC</title>
  <meta name="description" content="All released versions and channel builds of every ZDDC tool.">
  <meta name="theme-color" content="#2a5a8a">
  <link rel="preconnect" href="https://fonts.googleapis.com">
  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
  <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap" rel="stylesheet">
  <link rel="stylesheet" href="../css/style.css">
  <style>
    .rel-tool { margin-top: var(--spacing-xl); padding: var(--spacing-md); border: 1px solid var(--color-border); border-radius: 8px; }
    .rel-tool h2 { margin-top: 0; }
    .rel-channels { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0.75rem 0 1.25rem 0; }
    .rel-channels a { padding: 0.25rem 0.625rem; border-radius: 999px; text-decoration: none; border: 1px solid var(--color-border); color: var(--color-text); font-size: 0.9rem; }
    .rel-channels a.stable { border-color: var(--color-primary); color: var(--color-primary); font-weight: 600; }
    .rel-channels a.beta, .rel-channels a.alpha { color: var(--color-text-muted); }
    .rel-channels a:hover { background: var(--color-bg-subtle); }
    .rel-versions { font-size: 0.875rem; color: var(--color-text-muted); }
    .rel-versions a { margin-right: 0.5rem; color: var(--color-text); text-decoration: none; padding: 0.1rem 0.4rem; border-radius: 4px; }
    .rel-versions a:hover { background: var(--color-bg-subtle); text-decoration: underline; }
    .rel-meta { font-size: 0.85rem; color: var(--color-text-muted); margin-top: 0.5rem; }
  </style>
</head>
<body>
  <header class="site-header">
    <div class="container header-content">
      <a href="/" class="brand">
        <div class="brand-logo">
          <svg viewBox="0 0 24 24"><path d="M3 5h18v2H3V5zm0 6h12v2H3v-2zm0 6h6v2H3v-2z" /></svg>
        </div>
        <span class="brand-name">ZDDC</span>
      </a>
      <nav class="header-nav">
        <a href="/" class="nav-link">Home</a>
        <a href="../reference.html" class="nav-link">Docs</a>
        <a href="index.html" class="nav-link active">Releases</a>
      </nav>
    </div>
  </header>

  <section class="hero">
    <div class="container">
      <h1>Releases</h1>
      <p class="hero-subtitle">All published versions and channel builds of every ZDDC tool. Stable releases are immutable; alpha and beta channels are rebuilt without notice.</p>
    </div>
  </section>

  <main class="container" style="margin-bottom: var(--spacing-2xl);">
HEAD
        printf '%s\n' "$TOOL_TABLE" | while IFS='|' read -r _tool _file _title; do
            _stable_target=""
            if [ -L "$RELEASES_DIR/${_tool}_stable.html" ]; then
                _stable_target=$(readlink "$RELEASES_DIR/${_tool}_stable.html")
            fi
            printf '    <section class="rel-tool">\n'
            printf '      <h2>%s</h2>\n' "$_title"
            printf '      <div class="rel-channels">\n'
            [ -e "$RELEASES_DIR/${_tool}_stable.html" ] && printf '        <a class="stable" href="%s_stable.html">stable</a>\n' "$_tool"
            [ -e "$RELEASES_DIR/${_tool}_beta.html" ]   && printf '        <a class="beta"   href="%s_beta.html">beta</a>\n'   "$_tool"
            [ -e "$RELEASES_DIR/${_tool}_alpha.html" ]  && printf '        <a class="alpha"  href="%s_alpha.html">alpha</a>\n'  "$_tool"
            printf '      </div>\n'
            _versions=$(ls -1 "$RELEASES_DIR" 2>/dev/null | grep -E "^${_tool}_v[0-9]" | sort -V -r)
            if [ -n "$_versions" ]; then
                printf '      <div class="rel-versions"><strong>Pin to version:</strong>\n'
                printf '%s\n' "$_versions" | while read -r _v; do
                    _ver=${_v#${_tool}_v}; _ver=${_ver%.html}
                    printf '        <a href="%s">v%s</a>\n' "$_v" "$_ver"
                done
                printf '      </div>\n'
            fi
            if [ -n "$_stable_target" ]; then
                printf '      <div class="rel-meta">stable currently → %s</div>\n' "$_stable_target"
            fi
            printf '    </section>\n'
        done
        cat <<'TAIL'

    <section style="margin-top: var(--spacing-2xl); color: var(--color-text-muted); font-size: 0.9rem;">
      <p>Append <code>?v=alpha</code>, <code>?v=beta</code>, <code>?v=stable</code>, or <code>?v=0.0.1</code> to any deployment URL to switch versions for a single request — see <a href="../">the home page</a>.</p>
    </section>
  </main>

  <footer class="site-footer">
    <div class="container footer-content">
      <span>ZDDC is open source — <a href="https://codeberg.org/VARASYS/ZDDC">codeberg.org/VARASYS/ZDDC</a></span>
    </div>
  </footer>
</body>
</html>
TAIL
    } > "$_out"
    echo "Wrote $_out"
}

echo ""
echo "=== Building install.zip, track-*.zip, releases/index.html ==="
build_install_zip
build_track_zip alpha
build_track_zip beta
build_track_zip stable
build_releases_index

echo ""
echo "=== All tools built successfully ==="
echo ""
echo "Server deployment package: zddc/dist/"
echo "  Binaries:  zddc-server-{linux,darwin,windows}-*"
echo "  Web files: web/  (copy contents to ZDDC_ROOT)"
echo ""
echo "Bootstrap downloads: website/"
echo "  install.zip       — self-contained install for deployment root"
echo "  track-alpha.zip   — level-2 stubs that track the alpha channel"
echo "  track-beta.zip    — level-2 stubs that track the beta channel"
echo "  track-stable.zip  — level-2 stubs that track the stable channel"