Initial commit of source.
This commit is contained in:
Hendrik van Wyk
70
webgui/htmltemplate.go
Normal file
70
webgui/htmltemplate.go
Normal file
@@ -0,0 +1,70 @@
|
||||
/*
|
||||
Copyright (c) 2015, Hendrik van Wyk
|
||||
All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright notice, this
|
||||
list of conditions and the following disclaimer.
|
||||
|
||||
* Redistributions in binary form must reproduce the above copyright notice,
|
||||
this list of conditions and the following disclaimer in the documentation
|
||||
and/or other materials provided with the distribution.
|
||||
|
||||
* Neither the name of invertergui nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
||||
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
package webgui
|
||||
|
||||
var htmlTemplate string = `<html>
|
||||
<head>
|
||||
<meta charset="utf-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1">
|
||||
<meta http-equiv="refresh" content="5">
|
||||
|
||||
<title>Victron Multiplus Monitor</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
{{if .Error}} <p>Error encountered: {{.Error}} </p> {{end}}
|
||||
<dl>
|
||||
<dt> LEDs:</dt>
|
||||
{{range .Leds}}
|
||||
<dt> {{.}}</dt>
|
||||
{{else}}
|
||||
None
|
||||
{{end}}
|
||||
</dl>
|
||||
<dl>
|
||||
<dt> Output Current: {{.OutCurrent}} A</dt>
|
||||
<dt> Output Voltage: {{.OutVoltage}} V</dt>
|
||||
<dt> Output Power: {{.OutPower}} VA</dt>
|
||||
</dl>
|
||||
<dl>
|
||||
<dt> Input Current: {{.InCurrent}} A</dt>
|
||||
<dt> Input Voltage: {{.InVoltage}} V</dt>
|
||||
<dt> Input Frequency: {{.InFreq}} Hz</dt>
|
||||
<dt> Input Power: {{.InPower}} VA</dt>
|
||||
</dl>
|
||||
<p> Input - Output Power: {{.InMinOut}} VA</p>
|
||||
<dl>
|
||||
<dt> Battery Current: {{.BatCurrent}} A</dt>
|
||||
<dt> Battery Voltage: {{.BatVoltage}} V</dt>
|
||||
<dt> Battery Power: {{.BatPower}} W</dt>
|
||||
</dl>
|
||||
</body>
|
||||
</html>`
|
||||
180
webgui/webgui.go
Normal file
180
webgui/webgui.go
Normal file
@@ -0,0 +1,180 @@
|
||||
/*
|
||||
Copyright (c) 2015, Hendrik van Wyk
|
||||
All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright notice, this
|
||||
list of conditions and the following disclaimer.
|
||||
|
||||
* Redistributions in binary form must reproduce the above copyright notice,
|
||||
this list of conditions and the following disclaimer in the documentation
|
||||
and/or other materials provided with the distribution.
|
||||
|
||||
* Neither the name of invertergui nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
||||
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
package webgui
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/hpdvanwyk/invertergui/datasource"
|
||||
"html/template"
|
||||
"net/http"
|
||||
"time"
|
||||
)
|
||||
|
||||
var leds = map[int]string{
|
||||
0: "Temperature",
|
||||
1: "Low battery",
|
||||
2: "Overload",
|
||||
3: "Inverter",
|
||||
4: "Float",
|
||||
5: "Bulk",
|
||||
6: "Absorption",
|
||||
7: "Mains",
|
||||
}
|
||||
|
||||
type WebGui struct {
|
||||
source datasource.DataSource
|
||||
reqChan chan *statusError
|
||||
respChan chan statusError
|
||||
stopChan chan struct{}
|
||||
template *template.Template
|
||||
}
|
||||
|
||||
func NewWebGui(source datasource.DataSource, pollRate time.Duration) *WebGui {
|
||||
wg := new(WebGui)
|
||||
wg.source = source
|
||||
wg.reqChan = make(chan *statusError)
|
||||
wg.respChan = make(chan statusError)
|
||||
wg.stopChan = make(chan struct{})
|
||||
var err error
|
||||
wg.template, err = template.New("thegui").Parse(htmlTemplate)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
go wg.dataPoll(pollRate)
|
||||
return wg
|
||||
}
|
||||
|
||||
//TemplateInput is exported to be used as an argument to the http template package.
|
||||
type TemplateInput struct {
|
||||
Error error
|
||||
|
||||
OutCurrent string
|
||||
OutVoltage string
|
||||
OutPower string
|
||||
|
||||
InCurrent string
|
||||
InVoltage string
|
||||
InPower string
|
||||
|
||||
InMinOut string
|
||||
|
||||
BatVoltage string
|
||||
BatCurrent string
|
||||
BatPower string
|
||||
|
||||
InFreq string
|
||||
|
||||
Leds []string
|
||||
}
|
||||
|
||||
func (w *WebGui) ServeHTTP(rw http.ResponseWriter, r *http.Request) {
|
||||
statusErr := <-w.respChan
|
||||
|
||||
tmpInput := buildTemplateInput(&statusErr)
|
||||
|
||||
err := w.template.Execute(rw, tmpInput)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
}
|
||||
|
||||
func buildTemplateInput(statusErr *statusError) *TemplateInput {
|
||||
status := statusErr.status
|
||||
outPower := status.OutVoltage * status.OutCurrent
|
||||
inPower := status.InCurrent * status.InVoltage
|
||||
|
||||
tmpInput := &TemplateInput{
|
||||
Error: statusErr.err,
|
||||
OutCurrent: fmt.Sprintf("%.3f", status.OutCurrent),
|
||||
OutVoltage: fmt.Sprintf("%.3f", status.OutVoltage),
|
||||
OutPower: fmt.Sprintf("%.3f", outPower),
|
||||
InCurrent: fmt.Sprintf("%.3f", status.InCurrent),
|
||||
InVoltage: fmt.Sprintf("%.3f", status.InVoltage),
|
||||
InFreq: fmt.Sprintf("%.3f", status.InFreq),
|
||||
InPower: fmt.Sprintf("%.3f", inPower),
|
||||
|
||||
InMinOut: fmt.Sprintf("%.3f", inPower-outPower),
|
||||
|
||||
BatCurrent: fmt.Sprintf("%.3f", status.BatCurrent),
|
||||
BatVoltage: fmt.Sprintf("%.3f", status.BatVoltage),
|
||||
BatPower: fmt.Sprintf("%.3f", status.BatVoltage*status.BatCurrent),
|
||||
}
|
||||
for i := 7; i >= 0; i-- {
|
||||
if status.Leds[i] == 1 {
|
||||
tmpInput.Leds = append(tmpInput.Leds, leds[i])
|
||||
}
|
||||
}
|
||||
return tmpInput
|
||||
}
|
||||
|
||||
func (w *WebGui) Stop() {
|
||||
close(w.stopChan)
|
||||
}
|
||||
|
||||
type statusError struct {
|
||||
status datasource.MultiplusStatus
|
||||
err error
|
||||
}
|
||||
|
||||
// dataPoll will issue a request for a new status every pollRate. It will send its currently stored status
|
||||
// to respChan if anything reads from it.
|
||||
func (w *WebGui) dataPoll(pollRate time.Duration) {
|
||||
ticker := time.NewTicker(pollRate)
|
||||
var statusErr statusError
|
||||
go w.getStatus()
|
||||
gettingStatus := true
|
||||
for {
|
||||
select {
|
||||
case <-ticker.C:
|
||||
if gettingStatus == false {
|
||||
go w.getStatus()
|
||||
gettingStatus = true
|
||||
}
|
||||
case s := <-w.reqChan:
|
||||
if s.err != nil {
|
||||
statusErr.err = s.err
|
||||
} else {
|
||||
statusErr.status = s.status
|
||||
statusErr.err = nil
|
||||
}
|
||||
gettingStatus = false
|
||||
case w.respChan <- statusErr:
|
||||
case <-w.stopChan:
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (w *WebGui) getStatus() {
|
||||
statusErr := new(statusError)
|
||||
statusErr.err = w.source.GetData(&statusErr.status)
|
||||
w.reqChan <- statusErr
|
||||
}
|
||||
108
webgui/webgui_test.go
Normal file
108
webgui/webgui_test.go
Normal file
@@ -0,0 +1,108 @@
|
||||
/*
|
||||
Copyright (c) 2015, Hendrik van Wyk
|
||||
All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright notice, this
|
||||
list of conditions and the following disclaimer.
|
||||
|
||||
* Redistributions in binary form must reproduce the above copyright notice,
|
||||
this list of conditions and the following disclaimer in the documentation
|
||||
and/or other materials provided with the distribution.
|
||||
|
||||
* Neither the name of invertergui nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
||||
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
package webgui
|
||||
|
||||
import (
|
||||
"github.com/hpdvanwyk/invertergui/datasource"
|
||||
"reflect"
|
||||
"testing"
|
||||
)
|
||||
|
||||
type mockSource struct {
|
||||
}
|
||||
|
||||
func NewMockSource() datasource.DataSource {
|
||||
return &mockSource{}
|
||||
}
|
||||
|
||||
func (s *mockSource) GetData(status *datasource.MultiplusStatus) error {
|
||||
status.OutCurrent = 2.0
|
||||
status.InCurrent = 2.3
|
||||
status.OutVoltage = 230.0
|
||||
status.InVoltage = 230.1
|
||||
status.BatVoltage = 25
|
||||
status.BatCurrent = -10
|
||||
status.InFreq = 50
|
||||
status.OutFreq = 50
|
||||
status.Leds = []int{0, 0, 0, 0, 1, 0, 0, 1}
|
||||
return nil
|
||||
}
|
||||
|
||||
func TestWebGui(t *testing.T) {
|
||||
t.Skip("Not yet implimented")
|
||||
//TODO figure out how to test template output.
|
||||
}
|
||||
|
||||
type templateTest struct {
|
||||
input *statusError
|
||||
output *TemplateInput
|
||||
}
|
||||
|
||||
var templateInputTests = []templateTest{
|
||||
{
|
||||
input: &statusError{
|
||||
status: datasource.MultiplusStatus{
|
||||
OutCurrent: 2.0,
|
||||
InCurrent: 2.3,
|
||||
OutVoltage: 230.0,
|
||||
InVoltage: 230.1,
|
||||
BatVoltage: 25,
|
||||
BatCurrent: -10,
|
||||
InFreq: 50,
|
||||
OutFreq: 50,
|
||||
Leds: []int{0, 0, 0, 0, 1, 0, 0, 1}},
|
||||
err: nil,
|
||||
},
|
||||
output: &TemplateInput{
|
||||
Error: nil,
|
||||
OutCurrent: "2.000",
|
||||
OutVoltage: "230.000",
|
||||
OutPower: "460.000",
|
||||
InCurrent: "2.300",
|
||||
InVoltage: "230.100",
|
||||
InPower: "529.230",
|
||||
InMinOut: "69.230",
|
||||
BatVoltage: "25.000",
|
||||
BatCurrent: "-10.000",
|
||||
BatPower: "-250.000",
|
||||
InFreq: "50.000",
|
||||
Leds: []string{"Mains", "Float"}},
|
||||
},
|
||||
}
|
||||
|
||||
func TestTemplateInput(t *testing.T) {
|
||||
for i := range templateInputTests {
|
||||
templateInput := buildTemplateInput(templateInputTests[i].input)
|
||||
if !reflect.DeepEqual(templateInput, templateInputTests[i].output) {
|
||||
t.Errorf("buildTemplateInput not producing expected results")
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user