-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathshmeh.go
170 lines (160 loc) · 4.11 KB
/
shmeh.go
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
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
package main
import (
"bufio"
"encoding/json"
"fmt"
"log"
"net/http"
"strconv"
"sync"
"time"
"github.com/huin/goserial"
)
type shower struct {
len time.Duration
}
func (s shower) calcWater() float64 {
return flowrate * s.len.Seconds()
}
func (s shower) genjson() (j showerjson) {
j.TimeSeconds = s.len.Seconds()
j.WaterUsed = s.calcWater()
return
}
type showerjson struct {
TimeSeconds float64
WaterUsed float64
}
var flowrate float64
var showers struct {
sync.RWMutex
s []shower
}
var motion struct {
on bool
start time.Time
}
func main() {
showers.s = []shower{
shower{
len: time.Second,
},
shower{
len: time.Second * 2,
},
}
flowrate = 1
go func() {
bus, err := goserial.OpenPort(&goserial.Config{
Name: "/dev/ttyACM0",
Baud: 115200,
})
if err != nil {
panic(err)
}
scan := bufio.NewScanner(bus)
for scan.Scan() {
meh := scan.Text()
if meh == "1" {
if !motion.on {
motion.on = true
motion.start = time.Now()
log.Println("on")
}
} else {
if motion.on {
motion.on = false
showers.Lock()
showers.s = append(showers.s, shower{len: time.Since(motion.start)})
showers.Unlock()
log.Println("off")
}
}
}
log.Println("Bye bye")
}()
http.HandleFunc("/setFlow", func(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodGet {
http.Error(w, "wrong http method", http.StatusBadRequest)
}
err := r.ParseForm()
if err != nil {
http.Error(w, fmt.Sprintf("parse error %s", err), http.StatusBadRequest)
}
flow := r.FormValue("flow")
if flow == "" {
http.Error(w, "missing flow value", http.StatusBadRequest)
}
fl, err := strconv.ParseFloat(flow, 64)
if err != nil {
http.Error(w, fmt.Sprintf("flow value parse error %s", err), http.StatusBadRequest)
}
flowrate = fl
})
http.HandleFunc("/addShower", func(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodGet {
http.Error(w, "wrong http method", http.StatusBadRequest)
}
err := r.ParseForm()
if err != nil {
http.Error(w, fmt.Sprintf("parse error %s", err), http.StatusBadRequest)
}
t := r.FormValue("time")
if t == "" {
http.Error(w, "missing time value", http.StatusBadRequest)
}
ts, err := strconv.ParseFloat(t, 64)
if err != nil {
http.Error(w, fmt.Sprintf("time value parse error %s", err), http.StatusBadRequest)
}
showers.Lock()
showers.s = append(showers.s, shower{time.Duration(ts * float64(time.Second))})
showers.Unlock()
})
http.HandleFunc("/recent", func(w http.ResponseWriter, r *http.Request) {
showers.RLock()
defer showers.RUnlock()
json.NewEncoder(w).Encode(showers.s[len(showers.s)-1].genjson())
})
http.HandleFunc("/getAll", func(w http.ResponseWriter, r *http.Request) {
showers.RLock()
defer showers.RUnlock()
sh := make([]showerjson, len(showers.s))
for i, v := range showers.s {
sh[i] = v.genjson()
}
json.NewEncoder(w).Encode(sh)
})
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
showers.RLock()
defer showers.RUnlock()
w.Header().Set("Expires", time.Unix(0, 0).Format(time.RFC1123))
w.Header().Set("Cache-Control", "no-cache, private, max-age=0")
w.Header().Set("Pragma", "no-cache")
w.Header().Set("X-Accel-Expires", "0")
fmt.Fprintln(w, `
<head>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/materialize/0.98.2/css/materialize.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/materialize/0.98.2/js/materialize.min.js"></script>
</head>
<body>
<nav class="blue">
<div class="nav-wrapper">
<a href="#" class="brand-logo">AquaTrackr</a>
</div>
</nav>
<div class="container">
`)
recent := showers.s[len(showers.s)-1]
fmt.Fprintf(w, `
<div class="row">
<h1>%f Gallons</h1>
</div>
`, recent.calcWater())
fmt.Fprintln(w, `
</div>
</body>
`)
})
http.ListenAndServe(":8080", nil)
}