#!/bin/sh
set -eu

# Top-level build script — builds all ZDDC HTML tools, the zddc-server
# binaries, and the bootstrap stubs published under website/bootstrap/.

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 — only relevant if you're shipping
# standalone Linux/macOS/Windows binaries to users. Skipped silently when
# Go isn't on PATH. (zddc/release.sh handles the publish flow that
# uploads these to Codeberg release assets.)
echo ""
echo "=== Building zddc-server binaries ==="
if command -v go >/dev/null 2>&1; then
    cd "$SCRIPT_DIR/zddc"
    mkdir -p dist
    for target in linux/amd64 darwin/amd64 darwin/arm64 windows/amd64; do
        os="${target%/*}"; arch="${target#*/}"
        out="zddc-server-${os}-${arch}"
        case "$os" in windows) out="${out}.exe" ;; esac
        echo "  building $out"
        CGO_ENABLED=0 GOOS="$os" GOARCH="$arch" \
            go build -trimpath -ldflags="-s -w" -o "dist/$out" ./cmd/zddc-server
    done
    cd "$SCRIPT_DIR"
else
    echo "go not found — skipping cross-compiled binary build."
    echo "  (Install Go 1.24+ to build standalone binaries.)"
fi

# ─── Bootstrap stubs ─────────────────────────────────────────────────────────
# Generated from bootstrap/level{1,2}.html.tmpl on every build and published
# as standalone files under website/bootstrap/. The website's "Install on
# your server" section prints copy-pasteable shell snippets that curl these
# files into the operator's deployment directory.
#
#   bootstrap/level1/<tool>.html              — same-origin stubs for
#                                               <project>/<tool>.html (4 tools;
#                                               landing only lives at root)
#   bootstrap/track-<channel>/<tool>.html     — level-2 stubs that fetch the
#                                               named channel from upstream
#                                               (5 tools × 3 channels = 15)

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}}, {{FAVICON}} in a template.
# The favicon is a base64-encoded data URI built once from shared/favicon.svg.
_favicon_data_uri=""
if [ -f "$SCRIPT_DIR/shared/favicon.svg" ]; then
    _favicon_data_uri="data:image/svg+xml;base64,$(base64 -w 0 "$SCRIPT_DIR/shared/favicon.svg")"
fi
render_stub() {
    sed \
        -e "s|{{TOOL_TITLE}}|$3|g" \
        -e "s|{{TOOL}}|$2|g" \
        -e "s|{{CHANNEL}}|${4:-}|g" \
        -e "s|{{FAVICON}}|$_favicon_data_uri|g" \
        "$1" > "$5"
}

build_bootstrap_stubs() {
    _stubs="$WEBSITE_DIR/bootstrap"
    rm -rf "$_stubs"
    mkdir -p "$_stubs/level1"

    # Level-1 stubs (same-origin, channel-agnostic). Drop into a project
    # subdirectory so <project>/<tool>.html fetches ../<tool>.html.
    # Landing has no level-1 stub — landing only lives at deployment root.
    while IFS='|' read -r _tool _file _title; do
        render_stub "$BOOTSTRAP_DIR/level1.html.tmpl" "$_tool" "$_title" "" \
            "$_stubs/level1/$_file"
    done <<EOF
archive|archive.html|Archive
transmittal|transmittal.html|Transmittal
classifier|classifier.html|Classifier
mdedit|mdedit.html|Markdown Editor
EOF
    echo "Wrote $_stubs/level1/{archive,transmittal,classifier,mdedit}.html"

    # Level-2 stubs, one set per channel. Each fetches its named channel
    # from upstream on every page load.
    for _channel in alpha beta stable; do
        mkdir -p "$_stubs/track-$_channel"
        while IFS='|' read -r _tool _file _title; do
            render_stub "$BOOTSTRAP_DIR/level2.html.tmpl" "$_tool" "$_title" "$_channel" \
                "$_stubs/track-$_channel/$_file"
        done <<EOF
$TOOL_TABLE
EOF
        echo "Wrote $_stubs/track-$_channel/ (5 stubs)"
    done
}

# Regenerate website/releases/index.html and manifest.json from the
# Codeberg release list. Single API call at build time, no runtime
# dependency on Codeberg from the page (it's static HTML when served).
#
# Page links use /releases/<tag>/<asset> URLs which the website's Caddy
# reverse-proxies to codeberg.org/.../releases/download/<tag>/<asset>.
# Operators see one origin (zddc.varasys.io); Codeberg is the storage
# backend.
#
# Skips silently if curl/jq aren't on PATH (offline dev shouldn't blow
# up). Skips with a warning if the API call fails (network down, rate-
# limited, etc.) — the existing index.html stays as-is.
build_releases_index() {
    _out="$RELEASES_DIR/index.html"
    _manifest="$RELEASES_DIR/manifest.json"
    mkdir -p "$RELEASES_DIR"

    if ! command -v curl >/dev/null 2>&1 || ! command -v jq >/dev/null 2>&1; then
        echo "  (curl or jq missing — skipping releases index regeneration)"
        return 0
    fi

    _api_resp=$(curl -fsSL --max-time 30 \
        'https://codeberg.org/api/v1/repos/VARASYS/ZDDC/releases?limit=100' \
        2>/dev/null) || _api_resp=""

    if [ -z "$_api_resp" ]; then
        echo "  (Codeberg API unreachable — leaving releases/index.html as-is)"
        return 0
    fi

    # Build manifest.json: for each tool/channel, find the latest matching
    # release and emit "<tool>-<channel>": "<tag>". Channel resolution:
    # alpha = latest tag matching <tool>-vX.Y.Z-alpha.N
    # beta  = latest tag matching <tool>-vX.Y.Z-beta.N
    # stable = latest tag matching <tool>-vX.Y.Z (no suffix)
    # "Latest" via sort -V on the version part.
    _tools="archive transmittal classifier mdedit landing zddc-server"
    {
        printf '{\n'
        _first=1
        for _tool in $_tools; do
            for _ch in stable beta alpha; do
                if [ "$_ch" = "stable" ]; then
                    _re="^${_tool}-v[0-9]+\\.[0-9]+\\.[0-9]+\$"
                else
                    _re="^${_tool}-v[0-9]+\\.[0-9]+\\.[0-9]+-${_ch}\\.[0-9]+\$"
                fi
                _tag=$(printf '%s' "$_api_resp" \
                    | jq -r --arg re "$_re" '
                        [.[] | select(.tag_name | test($re)) | .tag_name]
                        | sort
                        | last // empty
                    ')
                if [ -n "$_tag" ]; then
                    [ "$_first" = "1" ] || printf ',\n'
                    printf '  "%s-%s": "%s"' "$_tool" "$_ch" "$_tag"
                    _first=0
                fi
            done
        done
        printf '\n}\n'
    } > "$_manifest"
    echo "Wrote $_manifest"

    {
        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; }
    .rel-bin-table { width: 100%; border-collapse: collapse; margin: 0.5rem 0 1rem; font-size: 0.9rem; }
    .rel-bin-table th, .rel-bin-table td { text-align: left; padding: 0.4rem 0.6rem; border-bottom: 1px solid var(--color-border); }
    .rel-bin-table th { font-weight: 600; color: var(--color-text-muted); }
    .rel-bin-table td.ch-stable { color: var(--color-primary); font-weight: 600; }
    .rel-bin-table td.ch-beta, .rel-bin-table td.ch-alpha { color: var(--color-text-muted); }
    .rel-bin-table a { color: var(--color-text); text-decoration: none; padding: 0.1rem 0.35rem; border-radius: 4px; }
    .rel-bin-table a:hover { background: var(--color-bg-subtle); text-decoration: underline; }
    .rel-bin-table td.empty { color: var(--color-text-muted); font-style: italic; }
    .rel-pull { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.85rem; background: var(--color-bg-subtle); padding: 0.25rem 0.5rem; border-radius: 4px; display: inline-block; margin: 0.2rem 0; }
  </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
        # Render one section per tool. The HTML tool releases publish a
        # single asset per tag (the inlined HTML); zddc-server publishes
        # per-platform binaries. The renderer handles both.
        for _tool_entry in 'archive|Archive' \
                           'transmittal|Transmittal' \
                           'classifier|Classifier' \
                           'mdedit|Markdown Editor' \
                           'landing|Landing (project picker)' \
                           'zddc-server|zddc-server (Go file server)'; do
            _tool="${_tool_entry%%|*}"
            _title="${_tool_entry#*|}"
            _re_stable="^${_tool}-v[0-9]+\\.[0-9]+\\.[0-9]+\$"
            _re_alpha="^${_tool}-v[0-9]+\\.[0-9]+\\.[0-9]+-alpha\\.[0-9]+\$"
            _re_beta="^${_tool}-v[0-9]+\\.[0-9]+\\.[0-9]+-beta\\.[0-9]+\$"

            _latest_stable=$(printf '%s' "$_api_resp" | jq -r --arg re "$_re_stable" \
                '[.[] | select(.tag_name | test($re)) | .tag_name] | sort | last // empty')
            _latest_beta=$(printf '%s' "$_api_resp" | jq -r --arg re "$_re_beta" \
                '[.[] | select(.tag_name | test($re)) | .tag_name] | sort | last // empty')
            _latest_alpha=$(printf '%s' "$_api_resp" | jq -r --arg re "$_re_alpha" \
                '[.[] | select(.tag_name | test($re)) | .tag_name] | sort | last // empty')
            _all_stables=$(printf '%s' "$_api_resp" | jq -r --arg re "$_re_stable" \
                '[.[] | select(.tag_name | test($re)) | .tag_name] | sort | reverse | .[]')

            # Skip the section entirely if no releases exist for this tool.
            if [ -z "$_latest_stable$_latest_beta$_latest_alpha" ]; then
                continue
            fi

            printf '    <section class="rel-tool">\n'
            printf '      <h2>%s</h2>\n' "$_title"

            # Channel chips. Each link uses /releases/<tag>/<asset>
            # which Caddy proxies to the Codeberg release-asset URL.
            # Asset name is <tool>_v<version>.html for HTML tools; for
            # zddc-server we link to the Codeberg release page since
            # the asset is per-platform (operator picks one).
            printf '      <div class="rel-channels">\n'
            for _row in "stable|$_latest_stable" "beta|$_latest_beta" "alpha|$_latest_alpha"; do
                _ch="${_row%%|*}"
                _tag="${_row#*|}"
                [ -n "$_tag" ] || continue
                if [ "$_tool" = "zddc-server" ]; then
                    printf '        <a class="%s" href="https://codeberg.org/VARASYS/ZDDC/releases/tag/%s">%s</a>\n' \
                        "$_ch" "$_tag" "$_ch"
                else
                    _ver="${_tag#${_tool}-v}"
                    _asset="${_tool}_v${_ver}.html"
                    printf '        <a class="%s" href="/releases/%s/%s">%s</a>\n' \
                        "$_ch" "$_tag" "$_asset" "$_ch"
                fi
            done
            printf '      </div>\n'

            # zddc-server: per-platform binary table, one row per channel.
            if [ "$_tool" = "zddc-server" ]; then
                _platforms="linux-amd64 darwin-amd64 darwin-arm64 windows-amd64"
                printf '      <h3 style="font-size:1rem;margin:0.75rem 0 0.4rem;">Standalone binaries</h3>\n'
                printf '      <table class="rel-bin-table"><thead><tr><th>Channel</th>'
                for _p in $_platforms; do printf '<th>%s</th>' "$_p"; done
                printf '</tr></thead><tbody>\n'
                for _row in "stable|$_latest_stable" "beta|$_latest_beta" "alpha|$_latest_alpha"; do
                    _ch="${_row%%|*}"
                    _tag="${_row#*|}"
                    printf '        <tr><td class="ch-%s">%s</td>' "$_ch" "$_ch"
                    if [ -z "$_tag" ]; then
                        for _p in $_platforms; do printf '<td class="empty">—</td>'; done
                    else
                        for _p in $_platforms; do
                            _ext=""; case "$_p" in windows-*) _ext=".exe" ;; esac
                            _asset="zddc-server-${_p}${_ext}"
                            printf '<td><a href="/releases/%s/%s">download</a></td>' "$_tag" "$_asset"
                        done
                    fi
                    printf '</tr>\n'
                done
                printf '      </tbody></table>\n'
            fi

            # Pin-to-version row. All stables (semver-descending). HTML
            # tools link to the asset directly; zddc-server links to the
            # Codeberg release page (per-platform asset choice).
            if [ -n "$_all_stables" ]; then
                printf '      <div class="rel-versions"><strong>Pin to version:</strong>\n'
                printf '%s\n' "$_all_stables" | while read -r _t; do
                    [ -n "$_t" ] || continue
                    _v="${_t#${_tool}-v}"
                    if [ "$_tool" = "zddc-server" ]; then
                        printf '        <a href="https://codeberg.org/VARASYS/ZDDC/releases/tag/%s">v%s</a>\n' "$_t" "$_v"
                    else
                        printf '        <a href="/releases/%s/%s_v%s.html">v%s</a>\n' "$_t" "$_tool" "$_v" "$_v"
                    fi
                done
                printf '      </div>\n'
            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 bootstrap stubs and releases/index.html ==="
build_bootstrap_stubs
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 stubs: website/bootstrap/"
echo "  level1/<tool>.html              — same-origin stubs for project subdirs"
echo "  track-{alpha,beta,stable}/      — level-2 stubs for each channel"
echo ""
echo "The home page's 'Install on your server' section prints copy-pasteable"
echo "shell snippets that curl these files into the operator's deployment dir."