136 lines
3.0 KiB
Go
136 lines
3.0 KiB
Go
package service
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import (
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"git.anomalous.dev/57_Wolve/uberbringer/config"
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fifo "github.com/foize/go.fifo"
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"github.com/justinmichaelvieira/escpos"
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"github.com/liamg/tml"
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"net"
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)
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type Queue struct {
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Data []Item `json:"data"`
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}
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type QueueItem struct {
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JobID string
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SequenceNumber int
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Type int
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Bold bool
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Size int
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Text string
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}
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// constructor function
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func (std *QueueItem) fillDefaults() {
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// setting default values
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// if no values present
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if std.JobID == "" {
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std.JobID = "000000000000000000"
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}
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if std.SequenceNumber == 0 {
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std.SequenceNumber = 0
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}
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if std.Type == 0 {
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std.Type = 0
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}
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if std.Bold == false {
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std.Bold = false
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}
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if std.Size == 0 {
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std.Size = 1
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}
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if std.Text == "" {
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std.Text = "NULL"
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}
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}
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func newPrintJob(input DataStruct, queue *fifo.Queue) {
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var byteLength int
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for _, item := range input.Data {
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byteLength += len(item.Text)
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}
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if byteLength > 4096 {
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tml.Printf("<red>[" + config.Project + "]: Job #" + input.JobID + " buffer limit reached</red>\n")
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return
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} else {
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tml.Printf("<blue>[" + config.Project + "]: Job #" + input.JobID + " buffer size used " + string(byteLength) + " bytes </blue>\n")
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}
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printJobCreate(input, queue)
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}
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func printJobCreate(input DataStruct, queue *fifo.Queue) {
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tml.Printf("<yellow>[" + config.Project + "]: Adding job #" + input.JobID + " to print queue</yellow>\n")
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socket, err := net.Dial("tcp", config.PrinterAddr+":9100")
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if err != nil {
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println(err.Error())
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}
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defer func(socket net.Conn) {
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err := socket.Close()
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if err != nil {
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println(err.Error())
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}
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}(socket)
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p := escpos.New(socket)
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p.SetConfig(escpos.ConfigEpsonTMT20II)
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p.Initialize()
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p.DefaultLineSpacing()
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for i, item := range input.Data {
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var SeqNum = i + 1
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tml.Printf("<darkgrey>[" + config.Project + "]: Job #" + input.JobID + " - creating command " + string(SeqNum) + "</darkgrey>\n")
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if item.Type <= 0 || item.Type > 5 {
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tml.Printf("<red>[" + config.Project + "]: Job #" + input.JobID + " bad type</red>\n")
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return
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} else if item.Size <= 0 || item.Size > 16 {
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tml.Printf("<red>[" + config.Project + "]: Job #" + input.JobID + " bad size</red>\n")
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return
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} else {
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switch item.Type {
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case 1:
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// Generate Regular Text
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p.Bold(false).Size(uint8(item.Size), uint8(item.Size)).Write(item.Text)
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case 2:
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// Generate Bold Text
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p.Bold(true).Size(uint8(item.Size), uint8(item.Size)).Write(item.Text)
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case 3:
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// Generate QR Code
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p.QRCode(item.Text, true, uint8(item.Size), escpos.QRCodeErrorCorrectionLevelH)
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case 4:
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// New Line
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p.LineFeed()
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case 5:
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// New Line X amount of times
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p.LineFeedD(uint8(item.Size))
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}
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tml.Printf("<green>[" + config.Project + "]: Job #" + input.JobID + " good type</green>\n")
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}
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}
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tml.Printf("<yellow>[" + config.Project + "]: Printing job #" + input.JobID + "</yellow>\n")
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p.LineFeed()
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err = p.PrintAndCut()
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if err != nil {
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println(err.Error())
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}
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tml.Printf("<green>[" + config.Project + "]: Done printing #" + input.JobID + "</green>\n")
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}
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