From 6132881b8ab3b2e9a751e511d33ab6fafe7a6abe Mon Sep 17 00:00:00 2001
From: Eugene Pankov <john.pankov@gmail.com>
Date: Thu, 6 Feb 2020 14:47:21 +0300
Subject: [PATCH] allow saving terminal state for debugging

---
 terminus-terminal/src/debug.ts | 69 ++++++++++++++++++++++++++++++++++
 terminus-terminal/src/index.ts |  2 +
 2 files changed, 71 insertions(+)
 create mode 100644 terminus-terminal/src/debug.ts

diff --git a/terminus-terminal/src/debug.ts b/terminus-terminal/src/debug.ts
new file mode 100644
index 00000000..0d630e30
--- /dev/null
+++ b/terminus-terminal/src/debug.ts
@@ -0,0 +1,69 @@
+import * as fs from 'fs'
+import { Injectable } from '@angular/core'
+import { TerminalDecorator } from './api/decorator'
+import { TerminalTabComponent } from './components/terminalTab.component'
+import { ElectronService, HostAppService } from 'terminus-core'
+
+/** @hidden */
+@Injectable()
+export class DebugDecorator extends TerminalDecorator {
+    constructor (
+        private electron: ElectronService,
+        private hostApp: HostAppService,
+    ) {
+        super()
+    }
+
+    attach (terminal: TerminalTabComponent): void {
+        terminal.content.nativeElement.addEventListener('keyup', e => {
+            if (e.which === 49 && e.ctrlKey && e.shiftKey && e.altKey) {
+                this.doSaveOutput(terminal)
+            }
+            if (e.which === 50 && e.ctrlKey && e.shiftKey && e.altKey) {
+                this.doLoadInput(terminal)
+            }
+            if (e.which === 51 && e.ctrlKey && e.shiftKey && e.altKey) {
+                this.doCopyOutput(terminal)
+            }
+            if (e.which === 52 && e.ctrlKey && e.shiftKey && e.altKey) {
+                this.doPasteOutput(terminal)
+            }
+        })
+    }
+
+    async doSaveOutput (terminal: TerminalTabComponent) {
+        const result = await this.electron.dialog.showSaveDialog(
+            this.hostApp.getWindow(),
+            {
+                defaultPath: 'output.txt',
+            },
+        )
+        if (result.filePath) {
+            fs.writeFileSync(result.filePath, terminal.frontend.saveState())
+        }
+    }
+
+    async doCopyOutput (terminal: TerminalTabComponent) {
+        const data = '```' + JSON.stringify(terminal.frontend.saveState()) + '```'
+        this.electron.clipboard.writeText(data)
+    }
+
+    async doLoadInput (terminal: TerminalTabComponent) {
+        const result = await this.electron.dialog.showOpenDialog(
+            this.hostApp.getWindow(),
+            {
+                buttonLabel: 'Load',
+                properties: ['openFile', 'treatPackageAsDirectory'],
+            },
+        )
+        if (result.filePaths.length) {
+            const data = fs.readFileSync(result.filePaths[0])
+            terminal.frontend.restoreState(data)
+        }
+    }
+
+    async doPasteOutput (terminal: TerminalTabComponent) {
+        const data = JSON.parse(this.electron.clipboard.readText())
+        terminal.frontend.restoreState(data)
+    }
+}
diff --git a/terminus-terminal/src/index.ts b/terminus-terminal/src/index.ts
index 40f918b1..33430a27 100644
--- a/terminus-terminal/src/index.ts
+++ b/terminus-terminal/src/index.ts
@@ -31,6 +31,7 @@ import { TerminalContextMenuItemProvider } from './api/contextMenuProvider'
 import { TerminalColorSchemeProvider } from './api/colorSchemeProvider'
 import { ShellProvider } from './api/shellProvider'
 import { TerminalSettingsTabProvider, AppearanceSettingsTabProvider, ShellSettingsTabProvider } from './settings'
+import { DebugDecorator } from './debug'
 import { PathDropDecorator } from './pathDrop'
 import { TerminalConfigProvider } from './config'
 import { TerminalHotkeyProvider } from './hotkeys'
@@ -77,6 +78,7 @@ import { XTermFrontend, XTermWebGLFrontend } from './frontends/xtermFrontend'
         { provide: TerminalColorSchemeProvider, useClass: HyperColorSchemes, multi: true },
         { provide: TerminalDecorator, useClass: PathDropDecorator, multi: true },
         { provide: TerminalDecorator, useClass: ZModemDecorator, multi: true },
+        { provide: TerminalDecorator, useClass: DebugDecorator, multi: true },
 
         { provide: ShellProvider, useClass: WindowsDefaultShellProvider, multi: true },
         { provide: ShellProvider, useClass: MacOSDefaultShellProvider, multi: true },