wgroeneveld
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phomemo-printer
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Fix printing multiple files at once

This commit is contained in:
Wouter Groeneveld 2023-03-18 09:16:38 +01:00
parent 8730d2c29f
commit 377af1bf7a
1 changed files with 21 additions and 23 deletions
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44
main.go
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@ -50,6 +50,10 @@ func main() {
}
must("Enable Bluetooth stack", adapter.Enable())
pyfilterloc := dumpFilter(*dir)
defer func() {
os.RemoveAll(pyfilterloc)
}()
log.Println("Scanning for Bluetooth devices...")
ch := make(chan bluetooth.ScanResult, 1)
@ -67,7 +71,13 @@ func main() {
select {
case device := <-ch:
log.Println("Found device: ", device.Address.String(), device.RSSI, device.LocalName())
tryToPrint(device, *dir, files)
for _, file := range files {
filePath := filepath.Join(*dir, file.Name())
if isPossibleToPrint(filePath) {
log.Printf("Trying to print %s\n", filePath)
tryToPrint(device, pyfilterloc, filePath)
}
}
case <-time.After(10 * time.Second):
log.Fatal("Timeout trying to locate Phomemo M02, is it on? Quitting.")
os.Exit(1)
@ -88,14 +98,14 @@ func copyFileToFolder(file string, folder string) error {
return nil
}
func tryToPrint(phomemoAddress bluetooth.ScanResult, dir string, files []os.DirEntry) {
func tryToPrint(phomemoAddress bluetooth.ScanResult, pyfilterloc string, filePath string) {
var phomemo *bluetooth.Device
phomemo, err := adapter.Connect(phomemoAddress.Address, bluetooth.ConnectionParams{})
must("failed to connect to adapter", err)
log.Println("connected to ", phomemoAddress.Address.String())
must("Failed to connect to adapter", err)
log.Println("Connected to ", phomemoAddress.Address.String())
defer func() {
if err := phomemo.Disconnect(); err != nil {
log.Println(err)
log.Fatalf("Cannot disconnect: %w\n", err)
} else {
log.Println("disconnected")
}
@ -109,25 +119,11 @@ func tryToPrint(phomemoAddress bluetooth.ScanResult, dir string, files []os.DirE
log.Println("- service", srvc.UUID().String())
chars, err := srvc.DiscoverCharacteristics(nil)
must("failed to discover characteristics of service", err)
pyfilterloc := filepath.Join(dir, "phomemo-filter.py")
dumpFilter(pyfilterloc)
defer func() {
os.RemoveAll(pyfilterloc)
}()
must("Failed to discover characteristics of service", err)
// 3 characteristics to discover 0000ff01, 0000ff02, and 0000ff03
for _, file := range files {
filePath := dir + "/" + file.Name()
if isPossibleToPrint(filePath) {
writeData(pyfilterloc, filePath, chars[1]) // 0000ff02-...
readResult(chars[0]) // 0000ff01-...
os.RemoveAll(filePath)
}
}
log.Println("-- DONE")
writeData(pyfilterloc, filePath, chars[1]) // 0000ff02-...
readResult(chars[0]) // 0000ff01-...
}
func isPossibleToPrint(filename string) bool {
@ -137,9 +133,11 @@ func isPossibleToPrint(filename string) bool {
strings.HasSuffix(filename, ".PNG")
}
func dumpFilter(filename string) {
func dumpFilter(dir string) string {
filename := filepath.Join(dir, "phomemo-filter.py")
err := os.WriteFile(filename, phomemofilter.Pyfilter, 0666)
must("unable to dump python filter for use", err)
return filename
}
func writeData(pyfilterloc string, path string, char bluetooth.DeviceCharacteristic) {