Dev
466 lines
22 KiB
C#
466 lines
22 KiB
C#
using SharepointToolbox.Core.Models;
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using SharepointToolbox.Localization;
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using System.IO;
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using System.Text;
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namespace SharepointToolbox.Services.Export;
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/// <summary>
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/// Exports StorageNode tree to a self-contained HTML file with collapsible subfolder rows.
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/// Port of PS Export-StorageToHTML (PS lines 1621-1780).
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/// Uses a toggle(i) JS pattern where each collapsible row has id="sf-{i}".
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/// </summary>
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public class StorageHtmlExportService
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{
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private int _togIdx;
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private string[] _kindLabels = Array.Empty<string>();
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private string[] _kindLabelsHtml = Array.Empty<string>();
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/// <summary>
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/// Builds a self-contained HTML report with one collapsible row per
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/// library and indented child folders. Library-only variant — use the
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/// overload that accepts <see cref="FileTypeMetric"/>s when a file-type
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/// breakdown section is desired.
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/// </summary>
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public string BuildHtml(IReadOnlyList<StorageNode> nodes, ReportBranding? branding = null)
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{
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var sb = new StringBuilder(3072 + nodes.Count * 340);
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BuildHtmlCore(sb, nodes, branding);
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return sb.ToString();
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}
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private void BuildHtmlCore(StringBuilder sb, IReadOnlyList<StorageNode> nodes, ReportBranding? branding)
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{
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var T = TranslationSource.Instance;
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_togIdx = 0;
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_kindLabels = BuildKindLabelCache();
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_kindLabelsHtml = BuildHtmlEncodedCache(_kindLabels);
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sb.AppendLine("<!DOCTYPE html>");
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sb.AppendLine("<html lang=\"en\">");
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sb.AppendLine("<head>");
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sb.AppendLine("<meta charset=\"UTF-8\">");
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sb.AppendLine("<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">");
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sb.AppendLine($"<title>{T["report.title.storage"]}</title>");
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sb.AppendLine("""
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<style>
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body { font-family: 'Segoe UI', Arial, sans-serif; font-size: 13px; margin: 20px; background: #f5f5f5; }
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h1 { color: #0078d4; }
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table { border-collapse: collapse; width: 100%; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.15); }
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th { background: #0078d4; color: #fff; padding: 8px 12px; text-align: left; font-weight: 600; }
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td { padding: 6px 12px; border-bottom: 1px solid #e0e0e0; vertical-align: top; }
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tr:hover { background: #f0f7ff; }
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.toggle-btn { background: none; border: 1px solid #0078d4; color: #0078d4; border-radius: 3px;
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cursor: pointer; font-size: 11px; padding: 1px 6px; margin-right: 6px; }
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.toggle-btn:hover { background: #e5f1fb; }
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.sf-tbl { width: 100%; border: none; box-shadow: none; margin: 0; }
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.sf-tbl td { background: #fafcff; font-size: 12px; }
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.num { text-align: right; font-variant-numeric: tabular-nums; }
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.generated { font-size: 11px; color: #888; margin-top: 12px; }
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</style>
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<script>
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function toggle(i) {
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var row = document.getElementById('sf-' + i);
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if (row) row.style.display = (row.style.display === 'none' || row.style.display === '') ? 'table-row' : 'none';
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}
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</script>
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</head>
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<body>
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""");
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sb.Append(BrandingHtmlHelper.BuildBrandingHeader(branding));
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sb.AppendLine($"<h1>{T["report.title.storage"]}</h1>");
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// Single-pass root aggregation: replaces 4 separate enumerations
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// (.Where().ToList() + 3× .Sum() + a final .Where() during render).
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var rootNodes0 = new List<StorageNode>(Math.Min(nodes.Count, 64));
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long siteTotal0 = 0, versionTotal0 = 0, fileTotal0 = 0;
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foreach (var n in nodes)
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{
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if (n.IndentLevel != 0) continue;
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rootNodes0.Add(n);
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siteTotal0 += n.TotalSizeBytes;
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versionTotal0 += n.VersionSizeBytes;
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fileTotal0 += n.TotalFileCount;
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}
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sb.AppendLine($"""
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<div style="display:flex;gap:16px;margin:16px 0;flex-wrap:wrap">
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<div style="background:#fff;border-radius:8px;padding:14px 20px;min-width:160px;box-shadow:0 1px 4px rgba(0,0,0,.1)"><div style="font-size:1.8rem;font-weight:700;color:#0078d4">{FormatSize(siteTotal0)}</div><div style="font-size:.8rem;color:#666">{T["report.stat.total_size"]}</div></div>
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<div style="background:#fff;border-radius:8px;padding:14px 20px;min-width:160px;box-shadow:0 1px 4px rgba(0,0,0,.1)"><div style="font-size:1.8rem;font-weight:700;color:#0078d4">{FormatSize(versionTotal0)}</div><div style="font-size:.8rem;color:#666">{T["report.stat.version_size"]}</div></div>
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<div style="background:#fff;border-radius:8px;padding:14px 20px;min-width:160px;box-shadow:0 1px 4px rgba(0,0,0,.1)"><div style="font-size:1.8rem;font-weight:700;color:#0078d4">{fileTotal0:N0}</div><div style="font-size:.8rem;color:#666">{T["report.stat.files"]}</div></div>
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</div>
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""");
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sb.AppendLine($"""
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<table>
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<thead>
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<tr>
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<th>{T["report.col.library_folder"]}</th>
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<th>{T["stor.col.kind"]}</th>
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<th>{T["report.col.site"]}</th>
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<th class="num">{T["report.stat.files"]}</th>
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<th class="num">{T["report.stat.total_size"]}</th>
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<th class="num">{T["report.stat.version_size"]}</th>
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<th>{T["report.col.last_modified"]}</th>
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</tr>
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</thead>
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<tbody>
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""");
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// Render only the pre-materialized root list — recursing into
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// Children handles descendants. Iterating the flat list would render
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// every descendant a second time as a top-level row.
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foreach (var node in rootNodes0)
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{
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RenderNode(sb, node);
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}
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sb.AppendLine("""
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</tbody>
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</table>
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""");
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sb.AppendLine($"<p class=\"generated\">{T["report.text.generated_colon"]} {DateTime.Now:yyyy-MM-dd HH:mm}</p>");
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sb.AppendLine("</body></html>");
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}
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/// <summary>
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/// Builds an HTML report including a file-type breakdown chart section.
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/// </summary>
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public string BuildHtml(IReadOnlyList<StorageNode> nodes, IReadOnlyList<FileTypeMetric> fileTypeMetrics, ReportBranding? branding = null)
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{
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var sb = new StringBuilder(4096 + nodes.Count * 340 + fileTypeMetrics.Count * 220);
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BuildHtmlCore(sb, nodes, fileTypeMetrics, branding);
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return sb.ToString();
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}
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private void BuildHtmlCore(StringBuilder sb, IReadOnlyList<StorageNode> nodes, IReadOnlyList<FileTypeMetric> fileTypeMetrics, ReportBranding? branding)
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{
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var T = TranslationSource.Instance;
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_togIdx = 0;
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_kindLabels = BuildKindLabelCache();
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_kindLabelsHtml = BuildHtmlEncodedCache(_kindLabels);
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sb.AppendLine("<!DOCTYPE html>");
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sb.AppendLine("<html lang=\"en\">");
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sb.AppendLine("<head>");
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sb.AppendLine("<meta charset=\"UTF-8\">");
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sb.AppendLine("<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">");
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sb.AppendLine($"<title>{T["report.title.storage"]}</title>");
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sb.AppendLine("""
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<style>
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body { font-family: 'Segoe UI', Arial, sans-serif; font-size: 13px; margin: 20px; background: #f5f5f5; }
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h1 { color: #0078d4; }
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h2 { color: #333; margin-top: 24px; }
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table { border-collapse: collapse; width: 100%; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.15); }
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th { background: #0078d4; color: #fff; padding: 8px 12px; text-align: left; font-weight: 600; }
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td { padding: 6px 12px; border-bottom: 1px solid #e0e0e0; vertical-align: top; }
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tr:hover { background: #f0f7ff; }
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.toggle-btn { background: none; border: 1px solid #0078d4; color: #0078d4; border-radius: 3px;
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cursor: pointer; font-size: 11px; padding: 1px 6px; margin-right: 6px; }
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.toggle-btn:hover { background: #e5f1fb; }
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.sf-tbl { width: 100%; border: none; box-shadow: none; margin: 0; }
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.sf-tbl td { background: #fafcff; font-size: 12px; }
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.num { text-align: right; font-variant-numeric: tabular-nums; }
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.generated { font-size: 11px; color: #888; margin-top: 12px; }
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.chart-section { margin: 20px 0; padding: 16px; background: #fff; border-radius: 8px; box-shadow: 0 1px 3px rgba(0,0,0,.15); }
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.bar-row { display: flex; align-items: center; margin: 4px 0; }
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.bar-label { width: 80px; font-size: 12px; font-weight: 600; text-align: right; padding-right: 10px; }
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.bar-track { flex: 1; background: #eee; border-radius: 4px; height: 22px; position: relative; }
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.bar-fill { height: 100%; border-radius: 4px; background: #0078d4; min-width: 2px; }
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.bar-value { font-size: 11px; color: #555; padding-left: 8px; white-space: nowrap; min-width: 140px; }
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.stats { display: flex; gap: 16px; margin: 16px 0; flex-wrap: wrap; }
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.stat-card { background: #fff; border-radius: 8px; padding: 14px 20px; min-width: 160px; box-shadow: 0 1px 4px rgba(0,0,0,.1); }
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.stat-card .value { font-size: 1.8rem; font-weight: 700; color: #0078d4; }
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.stat-card .label { font-size: .8rem; color: #666; margin-top: 2px; }
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</style>
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<script>
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function toggle(i) {
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var row = document.getElementById('sf-' + i);
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if (row) row.style.display = (row.style.display === 'none' || row.style.display === '') ? 'table-row' : 'none';
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}
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</script>
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</head>
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<body>
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""");
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sb.Append(BrandingHtmlHelper.BuildBrandingHeader(branding));
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sb.AppendLine($"<h1>{T["report.title.storage"]}</h1>");
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// ── Summary cards (single-pass aggregation) ──
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var rootNodes = new List<StorageNode>(Math.Min(nodes.Count, 64));
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long siteTotal = 0, versionTotal = 0, fileTotal = 0;
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foreach (var n in nodes)
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{
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if (n.IndentLevel != 0) continue;
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rootNodes.Add(n);
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siteTotal += n.TotalSizeBytes;
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versionTotal += n.VersionSizeBytes;
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fileTotal += n.TotalFileCount;
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}
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sb.AppendLine("<div class=\"stats\">");
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sb.AppendLine($" <div class=\"stat-card\"><div class=\"value\">{FormatSize(siteTotal)}</div><div class=\"label\">{T["report.stat.total_size"]}</div></div>");
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sb.AppendLine($" <div class=\"stat-card\"><div class=\"value\">{FormatSize(versionTotal)}</div><div class=\"label\">{T["report.stat.version_size"]}</div></div>");
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sb.AppendLine($" <div class=\"stat-card\"><div class=\"value\">{fileTotal:N0}</div><div class=\"label\">{T["report.stat.files"]}</div></div>");
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sb.AppendLine($" <div class=\"stat-card\"><div class=\"value\">{rootNodes.Count}</div><div class=\"label\">{T["report.stat.libraries"]}</div></div>");
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sb.AppendLine("</div>");
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// ── File type chart section ──
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if (fileTypeMetrics.Count > 0)
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{
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var maxSize = fileTypeMetrics.Max(m => m.TotalSizeBytes);
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var totalSize = fileTypeMetrics.Sum(m => m.TotalSizeBytes);
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var totalFiles = fileTypeMetrics.Sum(m => m.FileCount);
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sb.AppendLine("<div class=\"chart-section\">");
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sb.AppendLine($"<h2>{T["report.section.storage_by_file_type"]} ({totalFiles:N0} {T["report.text.files_unit"]}, {FormatSize(totalSize)})</h2>");
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var colors = new[] { "#0078d4", "#2b88d8", "#106ebe", "#005a9e", "#004578",
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"#00bcf2", "#009e49", "#8cbd18", "#ffb900", "#d83b01" };
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int idx = 0;
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foreach (var m in fileTypeMetrics.Take(15))
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{
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double pct = maxSize > 0 ? m.TotalSizeBytes * 100.0 / maxSize : 0;
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string color = colors[idx % colors.Length];
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string label = string.IsNullOrEmpty(m.Extension) ? T["report.text.no_ext"] : m.Extension;
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sb.AppendLine($"""
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<div class="bar-row">
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<span class="bar-label">{HtmlEncode(label)}</span>
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<div class="bar-track"><div class="bar-fill" style="width:{pct:F1}%;background:{color}"></div></div>
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<span class="bar-value">{FormatSize(m.TotalSizeBytes)} · {m.FileCount:N0} {T["report.text.files_unit"]}</span>
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</div>
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""");
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idx++;
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}
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sb.AppendLine("</div>");
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}
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// ── Storage table ──
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sb.AppendLine($"<h2>{T["report.section.library_details"]}</h2>");
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sb.AppendLine($"""
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<table>
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<thead>
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<tr>
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<th>{T["report.col.library_folder"]}</th>
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<th>{T["stor.col.kind"]}</th>
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<th>{T["report.col.site"]}</th>
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<th class="num">{T["report.stat.files"]}</th>
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<th class="num">{T["report.stat.total_size"]}</th>
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<th class="num">{T["report.stat.version_size"]}</th>
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<th>{T["report.col.last_modified"]}</th>
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</tr>
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</thead>
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<tbody>
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""");
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// Render only the pre-materialized root list — recursing into
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// Children handles descendants. Iterating the flat list would render
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// every descendant a second time as a top-level row.
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foreach (var node in rootNodes)
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{
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RenderNode(sb, node);
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}
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sb.AppendLine("""
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</tbody>
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</table>
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""");
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sb.AppendLine($"<p class=\"generated\">{T["report.text.generated_colon"]} {DateTime.Now:yyyy-MM-dd HH:mm}</p>");
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sb.AppendLine("</body></html>");
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}
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/// <summary>Writes the library-only HTML report to <paramref name="filePath"/>.</summary>
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public async Task WriteAsync(IReadOnlyList<StorageNode> nodes, string filePath, CancellationToken ct, ReportBranding? branding = null)
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{
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// Build into StringBuilder, stream chunks straight to disk —
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// skips a full-document char-array copy from sb.ToString().
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var sb = new StringBuilder(3072 + nodes.Count * 340);
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BuildHtmlCore(sb, nodes, branding);
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await ExportFileWriter.WriteHtmlChunksAsync(filePath, sb, ct);
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}
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/// <summary>Writes the HTML report including the file-type breakdown chart.</summary>
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public async Task WriteAsync(IReadOnlyList<StorageNode> nodes, IReadOnlyList<FileTypeMetric> fileTypeMetrics, string filePath, CancellationToken ct, ReportBranding? branding = null)
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{
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var sb = new StringBuilder(4096 + nodes.Count * 340 + fileTypeMetrics.Count * 220);
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BuildHtmlCore(sb, nodes, fileTypeMetrics, branding);
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await ExportFileWriter.WriteHtmlChunksAsync(filePath, sb, ct);
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}
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/// <summary>
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/// Split-aware HTML export for storage metrics.
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/// Single → one file. BySite + SeparateFiles → one file per site.
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/// BySite + SingleTabbed → one HTML with per-site iframe tabs. File-type
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/// metrics are replicated across partitions because they are not
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/// attributed per-site by the scanner.
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/// </summary>
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public async Task WriteAsync(
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IReadOnlyList<StorageNode> nodes,
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IReadOnlyList<FileTypeMetric> fileTypeMetrics,
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string basePath,
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ReportSplitMode splitMode,
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HtmlSplitLayout layout,
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CancellationToken ct,
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ReportBranding? branding = null)
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{
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if (splitMode != ReportSplitMode.BySite)
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{
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await WriteAsync(nodes, fileTypeMetrics, basePath, ct, branding);
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return;
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}
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var partitions = StorageCsvExportService.PartitionBySite(nodes).ToList();
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if (layout == HtmlSplitLayout.SingleTabbed)
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{
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var parts = partitions
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.Select(p => (p.Label, Html: BuildHtml(p.Partition, fileTypeMetrics, branding)))
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.ToList();
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var title = TranslationSource.Instance["report.title.storage"];
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var tabbed = ReportSplitHelper.BuildTabbedHtml(parts, title);
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await File.WriteAllTextAsync(basePath, tabbed, Encoding.UTF8, ct);
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return;
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}
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foreach (var (label, partNodes) in partitions)
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{
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ct.ThrowIfCancellationRequested();
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var path = ReportSplitHelper.BuildPartitionPath(basePath, label);
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await WriteAsync(partNodes, fileTypeMetrics, path, ct, branding);
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}
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}
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// ── Private rendering ────────────────────────────────────────────────────
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private void RenderNode(StringBuilder sb, StorageNode node)
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{
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bool hasChildren = node.Children.Count > 0;
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int myIdx = hasChildren ? ++_togIdx : 0;
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string nameCell = hasChildren
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? $"<button class=\"toggle-btn\" onclick=\"toggle({myIdx})\">▶</button>{HtmlEncode(node.Name)}"
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: $"<span style=\"margin-left:{node.IndentLevel * 16}px\">{HtmlEncode(node.Name)}</span>";
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AppendRow(sb, node, nameCell);
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if (hasChildren)
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{
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sb.AppendLine($"<tr id=\"sf-{myIdx}\" style=\"display:none\"><td colspan=\"7\" style=\"padding:0\">");
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sb.AppendLine("<table class=\"sf-tbl\"><tbody>");
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foreach (var child in node.Children)
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{
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RenderChildNode(sb, child);
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}
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sb.AppendLine("</tbody></table>");
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sb.AppendLine("</td></tr>");
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}
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}
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private void RenderChildNode(StringBuilder sb, StorageNode node)
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{
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bool hasChildren = node.Children.Count > 0;
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int myIdx = hasChildren ? ++_togIdx : 0;
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string indent = $"margin-left:{(node.IndentLevel + 1) * 16}px";
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string nameCell = hasChildren
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? $"<span style=\"{indent}\"><button class=\"toggle-btn\" onclick=\"toggle({myIdx})\">▶</button>{HtmlEncode(node.Name)}</span>"
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: $"<span style=\"{indent}\">{HtmlEncode(node.Name)}</span>";
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AppendRow(sb, node, nameCell);
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if (hasChildren)
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{
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sb.AppendLine($"<tr id=\"sf-{myIdx}\" style=\"display:none\"><td colspan=\"7\" style=\"padding:0\">");
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sb.AppendLine("<table class=\"sf-tbl\"><tbody>");
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foreach (var child in node.Children)
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{
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RenderChildNode(sb, child);
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}
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sb.AppendLine("</tbody></table>");
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sb.AppendLine("</td></tr>");
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}
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}
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/// <summary>
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/// Appends one data row given the pre-rendered name cell. Hot path:
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/// pulls localized kind labels from <see cref="_kindLabelsHtml"/> instead
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/// of going through <c>ResourceManager.GetString</c> + <c>HtmlEncode</c>
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/// per row.
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/// </summary>
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private void AppendRow(StringBuilder sb, StorageNode node, string nameCell)
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{
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int kindIdx = (int)node.Kind;
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string kindLabel = (uint)kindIdx < (uint)_kindLabelsHtml.Length
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? _kindLabelsHtml[kindIdx]
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: HtmlEncode(node.Kind.ToString());
|
||
string lastMod = node.LastModified.HasValue
|
||
? node.LastModified.Value.ToString("yyyy-MM-dd")
|
||
: string.Empty;
|
||
|
||
sb.AppendLine($"""
|
||
<tr>
|
||
<td>{nameCell}</td>
|
||
<td>{kindLabel}</td>
|
||
<td>{HtmlEncode(node.SiteTitle)}</td>
|
||
<td class="num">{node.TotalFileCount:N0}</td>
|
||
<td class="num">{FormatSize(node.TotalSizeBytes)}</td>
|
||
<td class="num">{FormatSize(node.VersionSizeBytes)}</td>
|
||
<td>{lastMod}</td>
|
||
</tr>
|
||
""");
|
||
}
|
||
|
||
private static string FormatSize(long bytes)
|
||
{
|
||
if (bytes >= 1_073_741_824L) return $"{bytes / 1_073_741_824.0:F2} GB";
|
||
if (bytes >= 1_048_576L) return $"{bytes / 1_048_576.0:F2} MB";
|
||
if (bytes >= 1024L) return $"{bytes / 1024.0:F2} KB";
|
||
return $"{bytes} B";
|
||
}
|
||
|
||
private static string HtmlEncode(string value)
|
||
=> System.Net.WebUtility.HtmlEncode(value ?? string.Empty);
|
||
|
||
private static string KindLabel(StorageNodeKind kind)
|
||
{
|
||
var T = TranslationSource.Instance;
|
||
return kind switch
|
||
{
|
||
StorageNodeKind.Library => T["stor.kind.library"],
|
||
StorageNodeKind.HiddenLibrary => T["stor.kind.hidden"],
|
||
StorageNodeKind.PreservationHold => T["stor.kind.preservation"],
|
||
StorageNodeKind.ListAttachments => T["stor.kind.attachments"],
|
||
StorageNodeKind.RecycleBin => T["stor.kind.recyclebin"],
|
||
StorageNodeKind.Subsite => T["stor.kind.subsite"],
|
||
_ => kind.ToString()
|
||
};
|
||
}
|
||
|
||
/// <summary>
|
||
/// Pre-resolves localized labels for every <see cref="StorageNodeKind"/>
|
||
/// once per export. Cached array index lookup avoids
|
||
/// <c>ResourceManager.GetString</c> per row in hot rendering loops.
|
||
/// </summary>
|
||
private static string[] BuildKindLabelCache()
|
||
{
|
||
var values = (StorageNodeKind[])Enum.GetValues(typeof(StorageNodeKind));
|
||
int max = 0;
|
||
foreach (var v in values) { int i = (int)v; if (i > max) max = i; }
|
||
var cache = new string[max + 1];
|
||
for (int i = 0; i < cache.Length; i++) cache[i] = ((StorageNodeKind)i).ToString();
|
||
foreach (var v in values) cache[(int)v] = KindLabel(v);
|
||
return cache;
|
||
}
|
||
|
||
/// <summary>HTML-encodes each entry of <paramref name="raw"/> once.</summary>
|
||
private static string[] BuildHtmlEncodedCache(string[] raw)
|
||
{
|
||
var encoded = new string[raw.Length];
|
||
for (int i = 0; i < raw.Length; i++) encoded[i] = HtmlEncode(raw[i]);
|
||
return encoded;
|
||
}
|
||
}
|