1 files changed, 180 insertions, 0 deletions
diff --git a/DomainDig/DomainViewModel+Export.swift b/DomainDig/DomainViewModel+Export.swift
new file mode 100644
index 0000000..5ca0514
--- /dev/null
+++ b/DomainDig/DomainViewModel+Export.swift
@@ -0,0 +1,180 @@
+import Foundation
+
+/// Export and data-portability surface of `DomainViewModel`: rendering the
+/// current report, batch results, tracked domains, timelines, and workflow runs
+/// into the shareable formats, plus the full-backup / portable-slice exporters
+/// and the import + app-settings persistence entry points.
+///
+/// These are thin adapters over `DomainReportExporter` and
+/// `DomainDataPortabilityService`. The report-projection helpers they call
+/// (`currentBatchReports`, `reports(for:)`, `timelineReports`, `workflowReports`)
+/// remain on the main type — they belong to the report layer shared with
+/// inspection, not to export.
+extension DomainViewModel {
+    func exportJSONData() -> Data? {
+        guard let currentReport else { return nil }
+        return try? DomainReportExporter.data(for: currentReport, format: .json)
+    }
+
+    func exportJSONString() -> String? {
+        guard let data = exportJSONData() else { return nil }
+        return String(data: data, encoding: .utf8)
+    }
+
+    func exportSingleReportData(format: DomainExportFormat) -> Data? {
+        guard let currentReport else { return nil }
+        return try? DomainReportExporter.data(for: currentReport, format: format)
+    }
+
+    func exportBatchReportData(format: DomainExportFormat) -> Data? {
+        try? DomainReportExporter.data(
+            for: currentBatchReports(),
+            format: format,
+            title: batchLookupSource == .watchlistRefresh ? "Tracked Domains Export" : "Batch Results Export"
+        )
+    }
+
+    func exportTrackedDomainsData(domains: [TrackedDomain], format: DomainExportFormat) -> Data? {
+        try? DomainReportExporter.data(
+            for: reports(for: domains),
+            format: format,
+            title: "Tracked Domains Export"
+        )
+    }
+
+    func exportTimelineText(domain: String, includeDiffSummary: Bool) -> String {
+        DomainReportExporter.timelineText(
+            for: timelineReports(for: domain),
+            domain: domain,
+            includeDiffSummary: includeDiffSummary
+        )
+    }
+
+    func exportTimelineJSONData(domain: String, includeDiffSummary: Bool) -> Data? {
+        try? DomainReportExporter.timelineData(
+            for: timelineReports(for: domain),
+            domain: domain,
+            includeDiffSummary: includeDiffSummary
+        )
+    }
+
+    func exportFullBackupData() -> Data? {
+        try? DomainDataPortabilityService.backupData()
+    }
+
+    func exportPortableTrackedDomainsJSONData() -> Data? {
+        try? DomainDataPortabilityService.trackedDomainsExportData()
+    }
+
+    func exportPortableTrackedDomainsCSV() -> String {
+        DomainDataPortabilityService.trackedDomainsCSV()
+    }
+
+    func exportPortableWorkflowsJSONData() -> Data? {
+        try? DomainDataPortabilityService.workflowsExportData()
+    }
+
+    func exportPortableWorkflowsCSV() -> String {
+        DomainDataPortabilityService.workflowsCSV()
+    }
+
+    func exportPortableHistoryJSONData() -> Data? {
+        try? DomainDataPortabilityService.historyExportData()
+    }
+
+    func prepareDataImport(
+        data: Data,
+        fileName: String,
+        mode: DataPortabilityImportMode
+    ) throws -> DataImportPreview {
+        try DomainDataPortabilityService.prepareImport(data: data, fileName: fileName, mode: mode)
+    }
+
+    func applyDataImport(_ preview: DataImportPreview, mode: DataPortabilityImportMode) throws -> DataImportResult {
+        let result = try DomainDataPortabilityService.applyImport(preview, mode: mode)
+        refreshPersistedData()
+        portabilityStatusMessage = result.summary
+        CloudSyncService.shared.markAppSettingsChanged()
+        CloudSyncService.shared.markMonitoringSettingsChanged(localActivationConfirmed: monitoringSettings.isEnabled)
+        CloudSyncService.shared.scheduleSyncIfNeeded(trigger: .imported)
+        return result
+    }
+
+    func persistCurrentAppSettings(resolverURLString: String, appDensityRawValue: String) {
+        DomainDataPortabilityService.saveAppSettings(
+            AppSettingsSnapshot(
+                recentSearches: recentSearches,
+                savedDomains: savedDomains,
+                resolverURLString: resolverURLString,
+                appDensityRawValue: appDensityRawValue
+            )
+        )
+        CloudSyncService.shared.markAppSettingsChanged()
+        refreshDataLifecycleSummary()
+    }
+
+    func exportWorkflowText(summary: WorkflowRunSummary, changedOnly: Bool) -> String {
+        let reports = workflowReports(from: summary, changedOnly: changedOnly)
+        let base = DomainReportExporter.batchText(
+            for: reports,
+            title: "\(summary.workflowName) Workflow Export"
+        )
+        guard !summary.workflowInsights.isEmpty else { return base }
+        let insightLines = summary.workflowInsights.map {
+            "- \($0.description): \($0.domainsInvolved.joined(separator: ", "))"
+        }
+        return ([ "\(summary.workflowName) Workflow Insights", String(repeating: "-", count: 32) ] + insightLines + ["", base]).joined(separator: "\n")
+    }
+
+    func exportWorkflowCSV(summary: WorkflowRunSummary, changedOnly: Bool) -> String {
+        DomainReportExporter.csv(
+            for: workflowReports(from: summary, changedOnly: changedOnly),
+            workflowInsights: summary.workflowInsights
+        )
+    }
+
+    func exportWorkflowJSONData(summary: WorkflowRunSummary, changedOnly: Bool) -> Data? {
+        let payload = WorkflowExportPayload(
+            workflowName: summary.workflowName,
+            generatedAt: summary.generatedAt,
+            workflowInsights: summary.workflowInsights,
+            reports: workflowReports(from: summary, changedOnly: changedOnly)
+        )
+        let encoder = JSONEncoder()
+        encoder.outputFormatting = [.prettyPrinted, .sortedKeys]
+        encoder.dateEncodingStrategy = .iso8601
+        return try? encoder.encode(payload)
+    }
+
+    func exportWorkflowMarkdown(summary: WorkflowRunSummary, changedOnly: Bool) -> String {
+        let reports = workflowReports(from: summary, changedOnly: changedOnly)
+        let base = DomainReportExporter.batchMarkdown(for: reports, title: "\(summary.workflowName) Workflow Export")
+        guard !summary.workflowInsights.isEmpty else { return base }
+        let insightLines = summary.workflowInsights.map {
+            "- \($0.description): \($0.domainsInvolved.joined(separator: ", "))"
+        }
+        return (["## \(summary.workflowName) Workflow Insights"] + insightLines + ["", base]).joined(separator: "\n")
+    }
+
+    func exportWorkflowData(summary: WorkflowRunSummary, changedOnly: Bool, format: DomainExportFormat) -> Data? {
+        switch format {
+        case .text:
+            return Data(exportWorkflowText(summary: summary, changedOnly: changedOnly).utf8)
+        case .csv:
+            return Data(exportWorkflowCSV(summary: summary, changedOnly: changedOnly).utf8)
+        case .json:
+            return exportWorkflowJSONData(summary: summary, changedOnly: changedOnly)
+        case .markdown:
+            return Data(exportWorkflowMarkdown(summary: summary, changedOnly: changedOnly).utf8)
+        case .pdf:
+            return DomainReportExporter.pdfData(fromMarkdown: exportWorkflowMarkdown(summary: summary, changedOnly: changedOnly))
+        }
+    }
+}
+
+private struct WorkflowExportPayload: Codable {
+    let workflowName: String
+    let generatedAt: Date
+    let workflowInsights: [WorkflowInsight]
+    let reports: [DomainReport]
+}