1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
// http://www.developers.meethue.com/documentation/lights-api
package hue
import (
"fmt"
"encoding/json"
"strings"
"errors"
)
// Light struct defines attributes of a light.
type Light struct {
State struct {
On bool `json:"on"` // On or Off state of the light ("true" or "false")
Bri int `json:"bri"` // Brightness value 1-254
Hue int `json:"hue"` // Hue value 1-65535
Saturation int `json:"sat"` // Saturation value 0-254
Effect string `json:"effect"` // "None" or "Colorloop"
XY [2]float32 `json:"xy"` // Coordinates of color in CIE color space
CT int `json:"ct"` // Mired Color Temperature (google it)
Alert string `json:"alert"`
ColorMode string `json:"colormode"`
Reachable bool `json:"reachable"`
} `json:"state"`
Type string `json:"type"`
Name string `json:"name"`
ModelID string `json:"modelid"`
ManufacturerName string `json:"manufacturername"`
UniqueID string `json:"uniqueid"`
SWVersion string `json:"swversion"`
Index int // Set by index of light array response // TODO: change to smaller int
Bridge *Bridge
}
// LightState used in SetLightState to amend light attributes.
type LightState struct {
On bool `json:"on"`
Bri uint8 `json:"bri,omitempty"`
Hue uint16 `json:"hue,omitempty"`
Sat uint8 `json:"sat,omitempty"`
XY *[2]float32 `json:"xy,omitempty"`
CT uint16 `json:"ct,omitempty"`
Effect string `json:"effect,omitempty"`
Alert string `json:"alert,omitempty"`
TransitionTime string `json:"transitiontime,omitempty"`
SaturationIncrement int `json:"sat_inc,omitempty"` // TODO: -254 to 254
HueIncrement int `json:"hue_inc,omitempty"` // TODO: -65534 to 65534
BrightnessIncrement int `json:"bri_inc,omitempty"` // TODO: -254 to 254
CTIncrement int `json:"ct_inc,omitempty"` // TODO: -65534 to 65534
XYIncrement *[2]float32 `json:"xy_inc,omitempty"`
}
// Light.Off will turn the light source off
func (self *Light) Off() error {
return SetLightState(self, LightState{On: false})
}
// Light.Off will turn the light source on
func (self *Light) On() error {
return SetLightState(self, LightState{On: true})
}
// Light.Toggle will toggle the light source on and off
func (self *Light) Toggle() error {
if self.State.On {
return self.Off()
} else {
return self.On()
}
}
// Light.ColorLoopOn will turn the light on and set the effect to "colorloop"
func (self *Light) ColorLoopOn() error {
return SetLightState(self, LightState{On: true, Effect: "colorloop"})
}
// Light.ColorLoopOn will turn the light on and set the effect to "none"
func (self *Light) ColorLoopOff() error {
return SetLightState(self, LightState{On: true, Effect: "none"})
}
// Light.ColorLoop will set the light state to a colorloop if there is no
// current effect in place or if the state is in colorloop then it will
// set it to "none".
func (self *Light) ColorLoop() error {
if self.State.Effect == "colorloop" {
return self.ColorLoopOff()
} else {
return self.ColorLoopOn()
}
}
// SetLightState will modify light attributes such as on/off, saturation,
// brightness, and more. See `SetLightState` struct.
func SetLightState(light *Light, newState LightState) error {
uri := fmt.Sprintf("/api/%s/lights/%d/state", light.Bridge.Username, light.Index)
_, _, err := light.Bridge.Put(uri, newState) // TODO: change to PUT
if err != nil {
return err
}
return nil
}
// GetAllLights retreives the state of all lights that the bridge is aware of.
func GetAllLights(bridge *Bridge) ([]Light, error) {
// Loop through all light indicies to see if they exist
// and parse their values. Supports 100 lights.
var lights []Light
for index := 1; index < 101; index++ {
// Send an http GET and inspect the response
uri := fmt.Sprintf("/api/%s/lights/%d", bridge.Username, index)
body, _, err := bridge.Get(uri)
if err != nil {
return lights, err
}
if strings.Contains(string(body), "not available") {
// Handle end of searchable lights
//fmt.Printf("\n\n%d lights found.\n\n", index)
break
}
// Parse and load the response into the light array
data := Light{}
err = json.Unmarshal(body, &data)
if err != nil {
trace("", err)
}
data.Index = index
data.Bridge = bridge
lights = append(lights, data)
}
return lights, nil
}
// GetLight will return a light struct containing data on a given name.
func GetLight(bridge *Bridge, name string) (Light, error) {
lights, _ := GetAllLights(bridge)
for index := 0; index < len(lights); index++ {
if lights[index].Name == name {
return lights[index], nil
}
}
return Light{}, errors.New("Light not found.")
}
|
