From 4fce2c7930d5bec1027b58ff47c1fdc3f3a5249f Mon Sep 17 00:00:00 2001
From: Digital Studium <digitalstudium001@gmail.com>
Date: Sun, 7 Apr 2024 16:48:02 +0300
Subject: [PATCH]  Initial commit

---
 kls | 97 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100755 kls

diff --git a/kls b/kls
new file mode 100755
index 0000000..67e2ee1
--- /dev/null
+++ b/kls
@@ -0,0 +1,97 @@
+#!/usr/bin/python3
+import curses
+import subprocess
+
+stdscr = curses.initscr()
+
+
+class Menu:
+    def __init__(self, name, rows, begin_x):
+        self.name = name # заголовок окна
+        self.rows = rows
+        self.begin_x = begin_x
+        self.win = curses.newwin(curses.LINES, curses.COLS // 3, 0, begin_x)
+        self.win.box()
+        self.win.addstr(1, 2, self.name) 
+        for index, row in enumerate(self.rows):
+            self.win.addstr(index + 3, 2, row)
+        self.row = 0
+
+
+# рисуем первое меню
+## готовим контент
+bytes_list = subprocess.check_output("kubectl get ns --no-headers -o template='{{range .items}}{{.metadata.name}} {{end}}'", shell=True).split()
+namespaces = [bytes_list[i].decode('utf-8') for i in range(len(bytes_list))]
+## отрисовываем меню
+menu1 = Menu("Namespaces", namespaces, 0)
+
+# рисуем второе меню
+## готовим контент
+api_resources = ["pods", "services", "deployments", "ingresses"]
+## отрисовываем меню
+menu2 = Menu("API resources", api_resources, 0 + curses.COLS // 3)
+
+# рисуем третье меню
+## готовим контент
+bytes_list = subprocess.check_output("kubectl get pods -n kube-system --no-headers -o template='{{range .items}}{{.metadata.name}} {{end}}'", shell=True).split()
+pods = [bytes_list[i].decode('utf-8') for i in range(len(bytes_list))]
+## отрисовываем меню
+menu3 = Menu("Resources", pods, 0 + curses.COLS // 3 * 2)
+
+menus = [menu1, menu2, menu3]
+
+def main(stdscr):
+    stdscr.refresh()
+    running = True
+    current_menu = 0
+    menus[current_menu].win.addstr(1, 2, menus[current_menu].name, curses.A_REVERSE | curses.A_ITALIC) 
+    for menu in menus:
+        menu.win.addstr(3, 2, menu.rows[0], curses.A_REVERSE | curses.A_ITALIC)
+    while running:
+        [menu.win.refresh() for menu in menus]  # refresh all menus
+        the_user_presses_the_key_et_voila = stdscr.getkey()
+        match the_user_presses_the_key_et_voila:
+            case 'q': 
+                running = False
+            case '\t' | "KEY_RIGHT":
+                menus[current_menu].win.addstr(1, 2, menus[current_menu].name) 
+                current_menu = (current_menu + 1) % 3
+                menus[current_menu].win.addstr(1, 2, menus[current_menu].name, curses.A_REVERSE | curses.A_ITALIC) 
+            case "KEY_BTAB" | "KEY_LEFT":
+                menus[current_menu].win.addstr(1, 2, menus[current_menu].name) 
+                current_menu = (current_menu - 1) % 3
+                menus[current_menu].win.addstr(1, 2, menus[current_menu].name, curses.A_REVERSE | curses.A_ITALIC) 
+            case "KEY_DOWN":
+                menu = menus[current_menu]
+                menu.win.addstr(menu.row + 3, 2, menu.rows[menu.row])  # удаляем выделение с текущей строки
+                menu.row = (menu.row + 1) % len(menu.rows) # переходим к следующей строке
+                menu.win.addstr(menu.row + 3, 2, menu.rows[menu.row], curses.A_REVERSE | curses.A_ITALIC) # и выделяем её
+
+                if current_menu != 2: # если изменился выбор нэймспейса или апи ресурса
+                    namespace = menus[0].rows[menus[0].row]
+                    api_resource = menus[1].rows[menus[1].row]
+                    command = f"kubectl get {api_resource} -n {namespace} " + "--no-headers -o template='{{range .items}}{{.metadata.name}} {{end}}'"
+                    #raise ValueError(command)
+                    bytes_list = subprocess.check_output(command, shell=True).split()
+                    resources = [bytes_list[i].decode('utf-8') for i in range(len(bytes_list))]
+                    if not resources:
+                        resources = [f"No resources found in {namespace} namespace.",]
+                    menus[2].win.clear()
+                    menus[2].win.box()
+                    menus[2].win.addstr(1, 2, menus[2].name) 
+                    menus[2].rows = resources
+                    menus[2].row = 0
+                    for index, row in enumerate(menus[2].rows):
+                        if index == 0 and not resources[0].startswith("No resources"):
+                            menus[2].win.addstr(index + 3, 2, row, curses.A_REVERSE | curses.A_ITALIC)
+                        else:
+                            menus[2].win.addstr(index + 3, 2, row)
+            case "KEY_UP":
+                pass
+
+curses.wrapper(main)               
+
+#curses.nocbreak()
+#stdscr.keypad(False)
+#curses.echo()
+#curses.endwin()