[Huge] Util Refactor, Dashboard Improvements, Hass.io Auth API, Better Validation Errors, Conditions, Custom Platforms, Substitutions (#234)

* Implement custom sensor platform

* Update

* Ethernet

* Lint

* Fix

* Login page

* Rename cookie secret

* Update manifest

* Update cookie check logic

* Favicon

* Fix

* Favicon manifest

* Fix

* Fix

* Fix

* Use hostname

* Message

* Temporary commit for screenshot

* Automatic board selection

* Undo temporary commit

* Update esphomeyaml-edge

* In-dashboard editing and hosting files locally

* Update esphomeyaml-edge

* Better ANSI color escaping

* Message

* Lint

* Download Efficiency

* Fix gitlab

* Fix

* Rename extra_libraries to libraries

* Add example

* Update README.md

* Update README.md

* Update README.md

* HassIO -> Hass.io

* Updates

* Add update available notice

* Update

* Fix substitutions

* Better error message

* Re-do dashboard ANSI colors

* Only include FastLED if user says so

* Autoscroll logs

* Remove old checks

* Use safer RedirectText

* Improvements

* Fix

* Use enviornment variable

* Use http://hassio/host/info

* Fix conditions

* Update platformio versions

* Revert "Use enviornment variable"

This reverts commit 7f038eb5d26df72f76ea9ae76774e2cec1fd7f59.

* Fix

* README update

* Temp

* Better invalid config messages

* Platformio debug

* Improve error messages

* Debug

* Remove debug

* Multi Conf

* Update

* Better paths

* Remove unused

* Fixes

* Lint

* lib_ignore

* Try fix platformio colors

* Fix dashboard scrolling

* Revert

* Lint

* Revert

esphomeyaml/config_validation.py

@@ -9,12 +9,12 @@ import uuid as uuid_
 
 import voluptuous as vol
 
-from esphomeyaml import core, helpers
+from esphomeyaml import core
 from esphomeyaml.const import CONF_AVAILABILITY, CONF_COMMAND_TOPIC, CONF_DISCOVERY, CONF_ID, \
-    CONF_NAME, CONF_PAYLOAD_AVAILABLE, \
-    CONF_PAYLOAD_NOT_AVAILABLE, CONF_PLATFORM, CONF_RETAIN, CONF_STATE_TOPIC, CONF_TOPIC, \
-    ESP_PLATFORM_ESP32, ESP_PLATFORM_ESP8266, CONF_INTERNAL, CONF_SETUP_PRIORITY
-from esphomeyaml.core import HexInt, IPAddress, Lambda, TimePeriod, TimePeriodMicroseconds, \
+    CONF_INTERNAL, CONF_NAME, CONF_PAYLOAD_AVAILABLE, CONF_PAYLOAD_NOT_AVAILABLE, CONF_PLATFORM, \
+    CONF_RETAIN, CONF_SETUP_PRIORITY, CONF_STATE_TOPIC, CONF_TOPIC, ESP_PLATFORM_ESP32, \
+    ESP_PLATFORM_ESP8266
+from esphomeyaml.core import CORE, HexInt, IPAddress, Lambda, TimePeriod, TimePeriodMicroseconds, \
     TimePeriodMilliseconds, TimePeriodSeconds
 
 _LOGGER = logging.getLogger(__name__)
@@ -22,8 +22,9 @@ _LOGGER = logging.getLogger(__name__)
 # pylint: disable=invalid-name
 
 port = vol.All(vol.Coerce(int), vol.Range(min=1, max=65535))
-positive_float = vol.All(vol.Coerce(float), vol.Range(min=0))
-zero_to_one_float = vol.All(vol.Coerce(float), vol.Range(min=0, max=1))
+float_ = vol.Coerce(float)
+positive_float = vol.All(float_, vol.Range(min=0))
+zero_to_one_float = vol.All(float_, vol.Range(min=0, max=1))
 positive_int = vol.All(vol.Coerce(int), vol.Range(min=0))
 positive_not_null_int = vol.All(vol.Coerce(int), vol.Range(min=0, min_included=False))
 
@@ -77,8 +78,8 @@ def string_strict(value):
     """Strictly only allow strings."""
     if isinstance(value, (str, unicode)):
         return value
-    raise vol.Invalid("Must be string, did you forget putting quotes "
-                      "around the value?")
+    raise vol.Invalid("Must be string, got {}. did you forget putting quotes "
+                      "around the value?".format(type(value)))
 
 
 def icon(value):
@@ -155,8 +156,9 @@ def variable_id_str_(value):
         raise vol.Invalid("Dashes are not supported in IDs, please use underscores instead.")
     for char in value:
         if char != '_' and not char.isalnum():
-            raise vol.Invalid(u"IDs must only consist of upper/lowercase characters and numbers."
-                              u"The character '{}' cannot be used".format(char))
+            raise vol.Invalid(u"IDs must only consist of upper/lowercase characters, the underscore"
+                              u"character and numbers. The character '{}' cannot be used"
+                              u"".format(char))
     if value in RESERVED_IDS:
         raise vol.Invalid(u"ID {} is reserved internally and cannot be used".format(value))
     return value
@@ -198,7 +200,7 @@ def only_on(platforms):
         platforms = [platforms]
 
     def validator_(obj):
-        if core.ESP_PLATFORM not in platforms:
+        if CORE.esp_platform not in platforms:
             raise vol.Invalid(u"This feature is only available on {}".format(platforms))
         return obj
 
@@ -258,12 +260,12 @@ TIME_PERIOD_ERROR = "Time period {} should be format number + unit, for example
 
 time_period_dict = vol.All(
     dict, vol.Schema({
-        'days': vol.Coerce(float),
-        'hours': vol.Coerce(float),
-        'minutes': vol.Coerce(float),
-        'seconds': vol.Coerce(float),
-        'milliseconds': vol.Coerce(float),
-        'microseconds': vol.Coerce(float),
+        'days': float_,
+        'hours': float_,
+        'minutes': float_,
+        'seconds': float_,
+        'milliseconds': float_,
+        'microseconds': float_,
     }),
     has_at_least_one_key('days', 'hours', 'minutes',
                          'seconds', 'milliseconds', 'microseconds'),
@@ -319,11 +321,11 @@ def time_period_str_unit(value):
 
     match = re.match(r"^([-+]?[0-9]*\.?[0-9]*)\s*(\w*)$", value)
 
-    if match is None or match.group(2) not in unit_to_kwarg:
+    if match is None:
         raise vol.Invalid(u"Expected time period with unit, "
                           u"got {}".format(value))
+    kwarg = unit_to_kwarg[one_of(*unit_to_kwarg)(match.group(2))]
 
-    kwarg = unit_to_kwarg[match.group(2)]
     return TimePeriod(**{kwarg: float(match.group(1))})
 
 
@@ -597,10 +599,12 @@ def one_of(*values, **kwargs):
     upper = kwargs.get('upper', False)
     string_ = kwargs.get('string', False) or lower or upper
     to_int = kwargs.get('int', False)
+    space = kwargs.get('space', ' ')
 
     def validator(value):
         if string_:
             value = string(value)
+            value = value.replace(' ', space)
         if to_int:
             value = int_(value)
         if lower:
@@ -640,7 +644,7 @@ def dimensions(value):
 
 def directory(value):
     value = string(value)
-    path = helpers.relative_path(value)
+    path = CORE.relative_path(value)
     if not os.path.exists(path):
         raise vol.Invalid(u"Could not find directory '{}'. Please make sure it exists.".format(
             path))
@@ -651,7 +655,7 @@ def directory(value):
 
 def file_(value):
     value = string(value)
-    path = helpers.relative_path(value)
+    path = CORE.relative_path(value)
     if not os.path.exists(path):
         raise vol.Invalid(u"Could not find file '{}'. Please make sure it exists.".format(
             path))
@@ -706,5 +710,5 @@ MQTT_COMMAND_COMPONENT_SCHEMA = MQTT_COMPONENT_SCHEMA.extend({
 })
 
 COMPONENT_SCHEMA = vol.Schema({
-    vol.Optional(CONF_SETUP_PRIORITY): vol.Coerce(float)
+    vol.Optional(CONF_SETUP_PRIORITY): float_
 })