re-add yasi-applets

src/yasi_applets/install/__init__.py

@@ -0,0 +1,9 @@
+from flask import Blueprint
+
+bp = Blueprint('install', __name__,
+               template_folder='',
+               static_folder='static',
+               static_url_path='/welcome/static')
+
+from yasi_applets.install import routes
+

src/yasi_applets/install/install.html

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+{% extends "layout.html" %}
+{% block body %}
+
+<center>
+<p style="position: absolute: left: 45px; top: 10px;">
+<big><big>
+    Installing...
+</big></big>
+</p>
+
+<br />
+
+<img style="width: 400px; padding: 20px;" src="/install/static/slide1.png" /> <br />
+<p>
+    Installing system, the rest of the process is automated.
+</p>
+
+<p style="margin: 20px;">
+<input style="background-color: #777777;" type="checkbox"
+       id="reboot" name="reboot" value="reboot" checked>
+<label for="reboot"> Reboot automatically when ready  </label></p><br>
+
+<div id="output"></div>
+
+<!-- Hidden input to track last line -->
+<div id="last-line-container">
+     <input type="hidden" id="last-line" name="last_line" value="0">
+</div>
+
+<!-- Poller -->
+<div hx-get="/install/status"
+     hx-trigger="load, every 1s"
+     hx-include="#last-line"
+     hx-swap-oob="true"
+     hx-target="this"
+     hx-ext="json-enc"
+     hx-vars="{}">
+</div>
+
+
+</center>
+
+<div style="position: absolute; padding: 10px; background-color: #26495e; left: 40px;
+            right: 40px; bottom: 40px; height: text-align: middle;">
+<center> Initializing... </center>
+</div>
+
+</div>
+</div>
+</div>
+
+{% endblock %}

src/yasi_applets/install/routes.py

@@ -0,0 +1,109 @@
+from yasi_applets.install import bp
+from flask import Flask, request, session, redirect, \
+     url_for, render_template, flash, Blueprint, jsonify
+from flask import current_app
+
+import subprocess
+import threading
+
+
+status = {
+    "status": "idle",  # idle | running | finished
+    "output": "",
+    "exit_code": None,
+    "lines": []
+}
+
+
+@bp.route('/install',methods=['GET', 'POST', 'PUT'])
+def install_index():
+    """
+    The page you'd get if you access the root of
+    this app in a browser.
+    """
+    install_start()
+    return render_template('install.html')
+
+
+@bp.route('/install-start',methods=['GET', 'POST', 'PUT'])
+def install_start():
+    """
+    Trigger the installation process
+    """
+    print("The installation process is starting!... in theory at least")
+    if status["status"] == "running":
+        return jsonify({"status": "already running"}), 409  # Conflict
+    threading.Thread(target=run_script).start()
+    return jsonify({"status": "started"})
+    print("did it finish?")
+
+
+def run_script():
+    global status
+    status["status"] = "running"
+
+    process = subprocess.Popen(
+        ["bash", "/data/jonathan/devel/highvoltage/system-installer/daemon/src/fake-install-shell.sh"],
+        stdout = subprocess.PIPE,
+        stderr = subprocess.STDOUT,
+        text = True)
+
+    lines = []
+    for line in iter(process.stdout.readline,''):
+        #lines.append(line.strip())
+        #status["output"] = "\n".join(lines)
+        status["lines"].append(line.strip())
+
+    process.wait()
+    status["status"] = 'finished'
+    status["exit_code"] = process.returncode
+
+    print(lines)
+    print("status:", status["status"], "code:", status["exit_code"])
+
+
+@bp.route('/install/status', methods=['GET', 'POST'])
+def install_status():
+    """
+    Update on the status of the installation process.
+    """
+
+    # Keep track of the last line posted, so that we can include
+    # any new lines not provided to the UI yet
+    last_line = int(request.args.get("last_line", 0))
+    new_lines = status["lines"][last_line:]
+
+    if not new_lines and status["status"] == "finished":
+        return ""  # Empty response = HTMX will stop polling
+
+    lines_html = ""
+    for i, line in enumerate(new_lines, start=last_line + 1):
+        lines_html += f'<div>{line}</div>'
+
+    return {
+        "output": status['output'],
+        "status": status['status'],
+	"lines": lines_html,
+        "last_line": f'<input type="hidden" id="last-line" name="last_line" value="{last_line + len(new_lines)}">'
+    }
+
+
+@bp.route('/install/cancel', methods=["POST"])
+def install_cancel():
+    """
+    Cancel the installation process.
+    """
+    if status["status"] != "running" or not status["process"]:
+        return Response("No running script", status=400)
+    process["process"].terminate()
+    process["status"] = "cancelled"
+    process["exit_code"] = -1
+    return Response("Cancelled", status=200)
+
+
+@bp.route('/settings',methods=['GET', 'POST', 'PUT'])
+def settings():
+    """
+    Manage settings for the installation module.
+    """
+    print("Settings")