Add mondash status block

Signed-off-by: Knut Ahlers <knut@ahlers.me>

.config/i3blocks/block.py

@@ -0,0 +1,90 @@
+import os
+
+BTN_LEFT = 1
+BTN_MIDDLE = 2
+BTN_RIGHT = 3
+
+COLOR_NONE = '#ffffff'
+COLOR_DANGER = '#dd0000'
+COLOR_SUCCESS = '#50fa7b'
+COLOR_WARNING = '#ffd966'
+COLOR_PRIMARY = '#8faafc'
+COLOR_SECONDARY = '#7f7f7f'
+
+VAR_BTN = 'BLOCK_BUTTON'
+VAR_INSTANCE = 'BLOCK_INSTANCE'
+VAR_NAME = 'BLOCK_NAME'
+VAR_X = 'BLOCK_X'
+VAR_Y = 'BLOCK_Y'
+
+
+class Block:
+    def __init__(self, icon=None, icon_color=None):
+        self.ICON = icon if icon is not None else '\uf128'
+        self.ICON_COLOR = icon_color if icon_color is not None else COLOR_NONE
+
+    def button_is(self, btn):
+        """
+        Checks whether a button was pressed on the widget and if so whether it was the expected one
+        """
+        return VAR_BTN in os.environ and os.environ[VAR_BTN] != '' and int(os.environ[VAR_BTN]) == btn
+
+    def color_text(self, text, color=COLOR_NONE):
+        """
+        Formats the given text with given color in pango markup
+        """
+        return '<span color="{color}">{text}</span>'.format(
+            color=color,
+            text=text,
+        )
+
+    def execute(self):
+        """
+        Contains the logic of this block and needs to be overwritten in child class
+        """
+        raise Exception('No exec implementation specified')
+
+    def instance(self):
+        """
+        Returns the block-defined instance or empty string if none
+        """
+        return os.environ[VAR_INSTANCE] if VAR_INSTANCE in os.environ else ''
+
+    def name(self):
+        """
+        Returns the block-defined name or empty string if none
+        """
+        return os.environ[VAR_NAME] if VAR_NAME in os.environ else ''
+
+    def render(self):
+        """
+        Executes the block and prints out the formatted string for the block
+        """
+        result = self.execute()
+
+        if result is None or len(result) == 0:
+            print(self.color_text(self.ICON, self.ICON_COLOR))
+            return
+
+        text = ''
+        if type(result) is list:
+            text = ' '.join(result)
+        else:
+            text = result
+
+        print('{icon}  {text}'.format(
+            icon=self.color_text(self.ICON, self.ICON_COLOR),
+            text=text,
+        ))
+
+    def set_icon(self, icon):
+        """
+        Overwrites the icon speicfied in constructor
+        """
+        self.ICON = icon
+
+    def set_icon_color(self, color):
+        """
+        Overwrites the icon color speicfied in constructor
+        """
+        self.ICON_COLOR = color

.config/i3blocks/config

@@ -32,6 +32,14 @@ markup=pango
 [mpc]
 interval=5
 
+[mondash]
+instance=$env_MONDASH_PRIVATE
+interval=30
+
+[mondash]
+instance=$env_MONDASH_ARCHNAS
+interval=30
+
 [github]
 interval=300
 

.config/i3blocks/mondash

@@ -0,0 +1,70 @@
+#!/usr/bin/env python3
+
+import json
+import os
+import subprocess
+
+from block import *
+
+import requests
+
+ICON = '\ufa6d'
+MONDASH_URL = 'https://mondash.org/{dashid}'
+STATUS_COLOR = {
+    'OK': COLOR_SUCCESS,
+    'Warning': COLOR_WARNING,
+    'Critical': COLOR_DANGER,
+    'Unknown': COLOR_SECONDARY,
+}
+
+
+class Mondash(Block):
+    def dashid(self):
+        id = self.instance()
+
+        if id.startswith('$env_'):
+            id = os.environ[id[5:]]
+
+        return id
+
+    def execute(self):
+        if self.button_is(BTN_LEFT):
+            subprocess.check_call([
+                'xdg-open',
+                MONDASH_URL.format(dashid=self.dashid()),
+            ])
+
+        result = []
+
+        for status, count in self.get_counts().items():
+            if count == 0:
+                continue
+
+            color = STATUS_COLOR[status]
+
+            result.append(self.color_text(str(count), color))
+
+        return ' / '.join(result)
+
+    def get_counts(self):
+        counts = {'OK': 0, 'Warning': 0, 'Critical': 0, 'Unknown': 0}
+
+        url = MONDASH_URL.format(dashid=self.dashid()) + '.json'
+        data = requests.get(url).json()
+
+        if not 'metrics' in data:
+            raise Exception('No metrics block found in result data')
+
+        for metric in data['metrics']:
+            counts[metric['status']] += 1
+
+        return counts
+
+
+def main():
+    block = Mondash(ICON)
+    block.render()
+
+
+if __name__ == '__main__':
+    main()