Zoneminder component (#3795)

* Initial Zoneminder commit

* Fixing bug when ZM sets its function to 'None'

* Adding zoneminder to coverage

* Quick Doc fix

* Update zoneminder.py

Doc Fix

* making the url base optional

homeassistant/components/switch/zoneminder.py

@@ -0,0 +1,92 @@
+"""
+Support for Zoneminder switches.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/switch.zoneminder/
+"""
+import logging
+
+import voluptuous as vol
+
+from homeassistant.components.switch import (SwitchDevice, PLATFORM_SCHEMA)
+from homeassistant.const import (CONF_COMMAND_ON, CONF_COMMAND_OFF)
+import homeassistant.helpers.config_validation as cv
+
+import homeassistant.components.zoneminder as zoneminder
+
+
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
+    vol.Required(CONF_COMMAND_ON): cv.string,
+    vol.Required(CONF_COMMAND_OFF): cv.string,
+})
+
+_LOGGER = logging.getLogger(__name__)
+
+DEPENDENCIES = ['zoneminder']
+
+
+def setup_platform(hass, config, add_devices, discovery_info=None):
+    """Setup the Zoneminder switch."""
+    on_state = config.get(CONF_COMMAND_ON)
+    off_state = config.get(CONF_COMMAND_OFF)
+
+    switches = []
+
+    monitors = zoneminder.get_state('api/monitors.json')
+    for i in monitors['monitors']:
+        switches.append(
+            ZMSwitchMonitors(
+                int(i['Monitor']['Id']),
+                i['Monitor']['Name'],
+                on_state,
+                off_state
+            )
+        )
+
+    add_devices(switches)
+
+
+class ZMSwitchMonitors(SwitchDevice):
+    """Representation of an zoneminder switch."""
+
+    icon = 'mdi:record-rec'
+
+    def __init__(self, monitor_id, monitor_name, on_state, off_state):
+        """Initialize the switch."""
+        self._monitor_id = monitor_id
+        self._monitor_name = monitor_name
+        self._on_state = on_state
+        self._off_state = off_state
+        self._state = None
+
+    @property
+    def name(self):
+        """Return the name of the switch."""
+        return "%s State" % self._monitor_name
+
+    def update(self):
+        """Update the switch value."""
+        monitor = zoneminder.get_state(
+            'api/monitors/%i.json' % self._monitor_id
+        )
+        current_state = monitor['monitor']['Monitor']['Function']
+        self._state = True if current_state == self._on_state else False
+
+    @property
+    def is_on(self):
+        """Return True if entity is on."""
+        return self._state
+
+    def turn_on(self):
+        """Turn the entity on."""
+        zoneminder.change_state(
+            'api/monitors/%i.json' % self._monitor_id,
+            {'Monitor[Function]': self._on_state}
+        )
+
+    def turn_off(self):
+        """Turn the entity off."""
+        zoneminder.change_state(
+            'api/monitors/%i.json' % self._monitor_id,
+            {'Monitor[Function]': self._off_state}
+        )