golang scanner imp
This commit is contained in:
@@ -2,6 +2,42 @@ module ScannerGO
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go 1.25.7
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require github.com/tarm/serial v0.0.0-20180830185346-98f6abe2eb07
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require (
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fyne.io/fyne/v2 v2.7.3
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github.com/google/gousb v1.1.3
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)
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require golang.org/x/sys v0.41.0 // indirect
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require (
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fyne.io/systray v1.12.0 // indirect
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github.com/BurntSushi/toml v1.5.0 // indirect
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github.com/davecgh/go-spew v1.1.1 // indirect
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github.com/fredbi/uri v1.1.1 // indirect
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github.com/fsnotify/fsnotify v1.9.0 // indirect
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github.com/fyne-io/gl-js v0.2.0 // indirect
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github.com/fyne-io/glfw-js v0.3.0 // indirect
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github.com/fyne-io/image v0.1.1 // indirect
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github.com/fyne-io/oksvg v0.2.0 // indirect
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github.com/go-gl/gl v0.0.0-20231021071112-07e5d0ea2e71 // indirect
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github.com/go-gl/glfw/v3.3/glfw v0.0.0-20240506104042-037f3cc74f2a // indirect
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github.com/go-text/render v0.2.0 // indirect
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github.com/go-text/typesetting v0.3.3 // indirect
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github.com/godbus/dbus/v5 v5.1.0 // indirect
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github.com/hack-pad/go-indexeddb v0.3.2 // indirect
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github.com/hack-pad/safejs v0.1.0 // indirect
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github.com/jeandeaual/go-locale v0.0.0-20250612000132-0ef82f21eade // indirect
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github.com/jsummers/gobmp v0.0.0-20230614200233-a9de23ed2e25 // indirect
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github.com/kr/text v0.2.0 // indirect
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github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 // indirect
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github.com/nicksnyder/go-i18n/v2 v2.5.1 // indirect
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github.com/pmezard/go-difflib v1.0.0 // indirect
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github.com/rymdport/portal v0.4.2 // indirect
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github.com/srwiley/oksvg v0.0.0-20221011165216-be6e8873101c // indirect
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github.com/srwiley/rasterx v0.0.0-20220730225603-2ab79fcdd4ef // indirect
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github.com/stretchr/testify v1.11.1 // indirect
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github.com/yuin/goldmark v1.7.8 // indirect
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golang.org/x/image v0.24.0 // indirect
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golang.org/x/net v0.35.0 // indirect
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golang.org/x/sys v0.41.0 // indirect
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golang.org/x/text v0.22.0 // indirect
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gopkg.in/yaml.v3 v3.0.1 // indirect
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)
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@@ -1,4 +1,82 @@
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github.com/tarm/serial v0.0.0-20180830185346-98f6abe2eb07 h1:UyzmZLoiDWMRywV4DUYb9Fbt8uiOSooupjTq10vpvnU=
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github.com/tarm/serial v0.0.0-20180830185346-98f6abe2eb07/go.mod h1:kDXzergiv9cbyO7IOYJZWg1U88JhDg3PB6klq9Hg2pA=
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fyne.io/fyne/v2 v2.7.3 h1:xBT/iYbdnNHONWO38fZMBrVBiJG8rV/Jypmy4tVfRWE=
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fyne.io/fyne/v2 v2.7.3/go.mod h1:gu+dlIcZWSzKZmnrY8Fbnj2Hirabv2ek+AKsfQ2bBlw=
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fyne.io/systray v1.12.0 h1:CA1Kk0e2zwFlxtc02L3QFSiIbxJ/P0n582YrZHT7aTM=
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fyne.io/systray v1.12.0/go.mod h1:RVwqP9nYMo7h5zViCBHri2FgjXF7H2cub7MAq4NSoLs=
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github.com/BurntSushi/toml v1.5.0 h1:W5quZX/G/csjUnuI8SUYlsHs9M38FC7znL0lIO+DvMg=
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github.com/BurntSushi/toml v1.5.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
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github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
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github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
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github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/felixge/fgprof v0.9.3 h1:VvyZxILNuCiUCSXtPtYmmtGvb65nqXh2QFWc0Wpf2/g=
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github.com/felixge/fgprof v0.9.3/go.mod h1:RdbpDgzqYVh/T9fPELJyV7EYJuHB55UTEULNun8eiPw=
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github.com/fredbi/uri v1.1.1 h1:xZHJC08GZNIUhbP5ImTHnt5Ya0T8FI2VAwI/37kh2Ko=
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github.com/fredbi/uri v1.1.1/go.mod h1:4+DZQ5zBjEwQCDmXW5JdIjz0PUA+yJbvtBv+u+adr5o=
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github.com/fsnotify/fsnotify v1.9.0 h1:2Ml+OJNzbYCTzsxtv8vKSFD9PbJjmhYF14k/jKC7S9k=
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github.com/fsnotify/fsnotify v1.9.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0=
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github.com/fyne-io/gl-js v0.2.0 h1:+EXMLVEa18EfkXBVKhifYB6OGs3HwKO3lUElA0LlAjs=
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github.com/fyne-io/gl-js v0.2.0/go.mod h1:ZcepK8vmOYLu96JoxbCKJy2ybr+g1pTnaBDdl7c3ajI=
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github.com/fyne-io/glfw-js v0.3.0 h1:d8k2+Y7l+zy2pc7wlGRyPfTgZoqDf3AI4G+2zOWhWUk=
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github.com/fyne-io/glfw-js v0.3.0/go.mod h1:Ri6te7rdZtBgBpxLW19uBpp3Dl6K9K/bRaYdJ22G8Jk=
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github.com/fyne-io/image v0.1.1 h1:WH0z4H7qfvNUw5l4p3bC1q70sa5+YWVt6HCj7y4VNyA=
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github.com/fyne-io/image v0.1.1/go.mod h1:xrfYBh6yspc+KjkgdZU/ifUC9sPA5Iv7WYUBzQKK7JM=
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github.com/fyne-io/oksvg v0.2.0 h1:mxcGU2dx6nwjJsSA9PCYZDuoAcsZ/OuJlvg/Q9Njfo8=
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github.com/fyne-io/oksvg v0.2.0/go.mod h1:dJ9oEkPiWhnTFNCmRgEze+YNprJF7YRbpjgpWS4kzoI=
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github.com/go-gl/gl v0.0.0-20231021071112-07e5d0ea2e71 h1:5BVwOaUSBTlVZowGO6VZGw2H/zl9nrd3eCZfYV+NfQA=
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github.com/go-gl/gl v0.0.0-20231021071112-07e5d0ea2e71/go.mod h1:9YTyiznxEY1fVinfM7RvRcjRHbw2xLBJ3AAGIT0I4Nw=
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github.com/go-gl/glfw/v3.3/glfw v0.0.0-20240506104042-037f3cc74f2a h1:vxnBhFDDT+xzxf1jTJKMKZw3H0swfWk9RpWbBbDK5+0=
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github.com/go-gl/glfw/v3.3/glfw v0.0.0-20240506104042-037f3cc74f2a/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
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github.com/go-text/render v0.2.0 h1:LBYoTmp5jYiJ4NPqDc2pz17MLmA3wHw1dZSVGcOdeAc=
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github.com/go-text/render v0.2.0/go.mod h1:CkiqfukRGKJA5vZZISkjSYrcdtgKQWRa2HIzvwNN5SU=
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github.com/go-text/typesetting v0.3.3 h1:ihGNJU9KzdK2QRDy1Bm7FT5RFQoYb+3n3EIhI/4eaQc=
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github.com/go-text/typesetting v0.3.3/go.mod h1:vIRUT25mLQaSh4C8H/lIsKppQz/Gdb8Pu/tNwpi52ts=
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github.com/go-text/typesetting-utils v0.0.0-20250618110550-c820a94c77b8 h1:4KCscI9qYWMGTuz6BpJtbUSRzcBrUSSE0ENMJbNSrFs=
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github.com/go-text/typesetting-utils v0.0.0-20250618110550-c820a94c77b8/go.mod h1:3/62I4La/HBRX9TcTpBj4eipLiwzf+vhI+7whTc9V7o=
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github.com/godbus/dbus/v5 v5.1.0 h1:4KLkAxT3aOY8Li4FRJe/KvhoNFFxo0m6fNuFUO8QJUk=
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github.com/godbus/dbus/v5 v5.1.0/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
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github.com/google/gousb v1.1.3 h1:xt6M5TDsGSZ+rlomz5Si5Hmd/Fvbmo2YCJHN+yGaK4o=
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github.com/google/gousb v1.1.3/go.mod h1:GGWUkK0gAXDzxhwrzetW592aOmkkqSGcj5KLEgmCVUg=
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github.com/google/pprof v0.0.0-20211214055906-6f57359322fd h1:1FjCyPC+syAzJ5/2S8fqdZK1R22vvA0J7JZKcuOIQ7Y=
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github.com/google/pprof v0.0.0-20211214055906-6f57359322fd/go.mod h1:KgnwoLYCZ8IQu3XUZ8Nc/bM9CCZFOyjUNOSygVozoDg=
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github.com/hack-pad/go-indexeddb v0.3.2 h1:DTqeJJYc1usa45Q5r52t01KhvlSN02+Oq+tQbSBI91A=
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github.com/hack-pad/go-indexeddb v0.3.2/go.mod h1:QvfTevpDVlkfomY498LhstjwbPW6QC4VC/lxYb0Kom0=
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github.com/hack-pad/safejs v0.1.0 h1:qPS6vjreAqh2amUqj4WNG1zIw7qlRQJ9K10eDKMCnE8=
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github.com/hack-pad/safejs v0.1.0/go.mod h1:HdS+bKF1NrE72VoXZeWzxFOVQVUSqZJAG0xNCnb+Tio=
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github.com/jeandeaual/go-locale v0.0.0-20250612000132-0ef82f21eade h1:FmusiCI1wHw+XQbvL9M+1r/C3SPqKrmBaIOYwVfQoDE=
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github.com/jeandeaual/go-locale v0.0.0-20250612000132-0ef82f21eade/go.mod h1:ZDXo8KHryOWSIqnsb/CiDq7hQUYryCgdVnxbj8tDG7o=
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github.com/jsummers/gobmp v0.0.0-20230614200233-a9de23ed2e25 h1:YLvr1eE6cdCqjOe972w/cYF+FjW34v27+9Vo5106B4M=
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github.com/jsummers/gobmp v0.0.0-20230614200233-a9de23ed2e25/go.mod h1:kLgvv7o6UM+0QSf0QjAse3wReFDsb9qbZJdfexWlrQw=
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github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
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github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
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github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 h1:zYyBkD/k9seD2A7fsi6Oo2LfFZAehjjQMERAvZLEDnQ=
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github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646/go.mod h1:jpp1/29i3P1S/RLdc7JQKbRpFeM1dOBd8T9ki5s+AY8=
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github.com/nicksnyder/go-i18n/v2 v2.5.1 h1:IxtPxYsR9Gp60cGXjfuR/llTqV8aYMsC472zD0D1vHk=
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github.com/nicksnyder/go-i18n/v2 v2.5.1/go.mod h1:DrhgsSDZxoAfvVrBVLXoxZn/pN5TXqaDbq7ju94viiQ=
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github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
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github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
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github.com/pkg/profile v1.7.0 h1:hnbDkaNWPCLMO9wGLdBFTIZvzDrDfBM2072E1S9gJkA=
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github.com/pkg/profile v1.7.0/go.mod h1:8Uer0jas47ZQMJ7VD+OHknK4YDY07LPUC6dEvqDjvNo=
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github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
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github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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github.com/rymdport/portal v0.4.2 h1:7jKRSemwlTyVHHrTGgQg7gmNPJs88xkbKcIL3NlcmSU=
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github.com/rymdport/portal v0.4.2/go.mod h1:kFF4jslnJ8pD5uCi17brj/ODlfIidOxlgUDTO5ncnC4=
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github.com/srwiley/oksvg v0.0.0-20221011165216-be6e8873101c h1:km8GpoQut05eY3GiYWEedbTT0qnSxrCjsVbb7yKY1KE=
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github.com/srwiley/oksvg v0.0.0-20221011165216-be6e8873101c/go.mod h1:cNQ3dwVJtS5Hmnjxy6AgTPd0Inb3pW05ftPSX7NZO7Q=
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github.com/srwiley/rasterx v0.0.0-20220730225603-2ab79fcdd4ef h1:Ch6Q+AZUxDBCVqdkI8FSpFyZDtCVBc2VmejdNrm5rRQ=
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github.com/srwiley/rasterx v0.0.0-20220730225603-2ab79fcdd4ef/go.mod h1:nXTWP6+gD5+LUJ8krVhhoeHjvHTutPxMYl5SvkcnJNE=
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github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
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github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
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github.com/yuin/goldmark v1.7.8 h1:iERMLn0/QJeHFhxSt3p6PeN9mGnvIKSpG9YYorDMnic=
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github.com/yuin/goldmark v1.7.8/go.mod h1:uzxRWxtg69N339t3louHJ7+O03ezfj6PlliRlaOzY1E=
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golang.org/x/image v0.24.0 h1:AN7zRgVsbvmTfNyqIbbOraYL8mSwcKncEj8ofjgzcMQ=
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golang.org/x/image v0.24.0/go.mod h1:4b/ITuLfqYq1hqZcjofwctIhi7sZh2WaCjvsBNjjya8=
|
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golang.org/x/net v0.35.0 h1:T5GQRQb2y08kTAByq9L4/bz8cipCdA8FbRTXewonqY8=
|
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golang.org/x/net v0.35.0/go.mod h1:EglIi67kWsHKlRzzVMUD93VMSWGFOMSZgxFjparz1Qk=
|
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golang.org/x/sys v0.41.0 h1:Ivj+2Cp/ylzLiEU89QhWblYnOE9zerudt9Ftecq2C6k=
|
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golang.org/x/sys v0.41.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
|
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golang.org/x/text v0.22.0 h1:bofq7m3/HAFvbF51jz3Q9wLg3jkvSPuiZu/pD1XwgtM=
|
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golang.org/x/text v0.22.0/go.mod h1:YRoo4H8PVmsu+E3Ou7cqLVH8oXWIHVoX0jqUWALQhfY=
|
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gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
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gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU=
|
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gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
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gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
|
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gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
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|
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@@ -1,175 +1,188 @@
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package main
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import (
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"bufio"
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"bytes"
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"encoding/json"
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"flag"
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"fmt"
|
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"io"
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"image/color"
|
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"net/http"
|
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"net/url"
|
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"os"
|
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"strings"
|
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"time"
|
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|
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"github.com/tarm/serial"
|
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"fyne.io/fyne/v2"
|
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"fyne.io/fyne/v2/app"
|
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"fyne.io/fyne/v2/canvas"
|
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"fyne.io/fyne/v2/container"
|
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"fyne.io/fyne/v2/widget"
|
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"github.com/google/gousb"
|
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)
|
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type Config struct {
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Port string `json:"port"`
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URL string `json:"url"`
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BaudRate int `json:"baud"`
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Delimiter string `json:"delimiter"`
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FlowControl string `json:"flow_control"`
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const (
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VendorID = 0xFFFF
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ProductID = 0x0035
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)
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var hidMap = map[byte]string{
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4: "a", 5: "b", 6: "c", 7: "d", 8: "e", 9: "f", 10: "g", 11: "h", 12: "i",
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13: "j", 14: "k", 15: "l", 16: "m", 17: "n", 18: "o", 19: "p", 20: "q",
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21: "r", 22: "s", 23: "t", 24: "u", 25: "v", 26: "w", 27: "x", 28: "y", 29: "z",
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30: "1", 31: "2", 32: "3", 33: "4", 34: "5", 35: "6", 36: "7", 37: "8", 38: "9", 39: "0",
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44: " ", 45: "-", 46: "=", 55: ".", 56: "/",
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}
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var defaultConfig = Config{
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Port: "/dev/ttyACM0",
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URL: "https://scanner.sekidesu.xyz/scan",
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BaudRate: 115200,
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Delimiter: "\n",
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FlowControl: "none",
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type BridgeApp struct {
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urlEntry *widget.Entry
|
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status *canvas.Text
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logList *widget.List
|
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logs []string
|
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window fyne.Window
|
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}
|
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|
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const configPath = "config.json"
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|
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func main() {
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cfg := loadConfig()
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a := app.New()
|
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w := a.NewWindow("POS Hardware Bridge (Go)")
|
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|
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portName := flag.String("port", cfg.Port, "Serial port name")
|
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endpoint := flag.String("url", cfg.URL, "Target URL endpoint")
|
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baudRate := flag.Int("baud", cfg.BaudRate, "Baud rate")
|
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delim := flag.String("delim", cfg.Delimiter, "Line delimiter")
|
||||
flow := flag.String("flow", cfg.FlowControl, "Flow control: none, hardware, software")
|
||||
save := flag.Bool("save", false, "Save current parameters to config.json")
|
||||
flag.Parse()
|
||||
|
||||
cfg.Port = *portName
|
||||
cfg.URL = *endpoint
|
||||
cfg.BaudRate = *baudRate
|
||||
cfg.Delimiter = *delim
|
||||
cfg.FlowControl = *flow
|
||||
|
||||
if *save {
|
||||
saveConfig(cfg)
|
||||
fmt.Println("Settings saved to", configPath)
|
||||
bridge := &BridgeApp{
|
||||
urlEntry: widget.NewEntry(),
|
||||
status: canvas.NewText("Status: Booting...", color.Black),
|
||||
window: w,
|
||||
}
|
||||
|
||||
serialConfig := &serial.Config{
|
||||
Name: cfg.Port,
|
||||
Baud: cfg.BaudRate,
|
||||
ReadTimeout: time.Millisecond * 500,
|
||||
}
|
||||
bridge.status.TextSize = 14
|
||||
bridge.urlEntry.SetText("https://scanner.sekidesu.xyz/scan")
|
||||
|
||||
// tarm/serial uses boolean flags for flow control if available in the version used
|
||||
// If your version doesn't support these fields, you may need to update the package
|
||||
// or manage the lines manually via the file descriptor.
|
||||
/* Note: tarm/serial usually requires specific fork or version
|
||||
for full RTS/CTS hardware flow control support.
|
||||
*/
|
||||
// UI Layout
|
||||
bridge.logList = widget.NewList(
|
||||
func() int { return len(bridge.logs) },
|
||||
func() fyne.CanvasObject { return widget.NewLabel("template") },
|
||||
func(i widget.ListItemID, o fyne.CanvasObject) {
|
||||
o.(*widget.Label).SetText(bridge.logs[len(bridge.logs)-1-i])
|
||||
},
|
||||
)
|
||||
|
||||
port, err := serial.OpenPort(serialConfig)
|
||||
if err != nil {
|
||||
fmt.Printf("Error opening port %s: %v\n", cfg.Port, err)
|
||||
os.Exit(1)
|
||||
}
|
||||
defer port.Close()
|
||||
content := container.NewBorder(
|
||||
container.NewVBox(
|
||||
widget.NewLabel("Target POS Endpoint:"),
|
||||
bridge.urlEntry,
|
||||
bridge.status,
|
||||
widget.NewLabel("Activity Log:"),
|
||||
),
|
||||
nil, nil, nil,
|
||||
bridge.logList,
|
||||
)
|
||||
|
||||
fmt.Printf("Listening on %s (Baud: %d, Flow: %s)...\n", cfg.Port, cfg.BaudRate, cfg.FlowControl)
|
||||
w.SetContent(content)
|
||||
w.Resize(fyne.NewSize(500, 400))
|
||||
|
||||
scanner := bufio.NewScanner(port)
|
||||
go bridge.usbListenLoop()
|
||||
|
||||
scanner.Split(func(data []byte, atEOF bool) (advance int, token []byte, err error) {
|
||||
if atEOF && len(data) == 0 {
|
||||
return 0, nil, nil
|
||||
w.ShowAndRun()
|
||||
}
|
||||
|
||||
func (b *BridgeApp) addLog(msg string) {
|
||||
fyne.DoAndWait(func() {
|
||||
ts := time.Now().Format("15:04:05")
|
||||
b.logs = append([]string{fmt.Sprintf("[%s] %s", ts, msg)}, b.logs...)
|
||||
if len(b.logs) > 15 {
|
||||
b.logs = b.logs[:15]
|
||||
}
|
||||
if i := bytes.Index(data, []byte(cfg.Delimiter)); i >= 0 {
|
||||
return i + len(cfg.Delimiter), data[0:i], nil
|
||||
}
|
||||
if atEOF {
|
||||
return len(data), data, nil
|
||||
}
|
||||
return 0, nil, nil
|
||||
b.logList.Refresh()
|
||||
})
|
||||
|
||||
for scanner.Scan() {
|
||||
rawContent := scanner.Text()
|
||||
content := strings.TrimFunc(rawContent, func(r rune) bool {
|
||||
return r < 32 || r > 126
|
||||
})
|
||||
|
||||
if content != "" {
|
||||
sendToEndpoint(cfg.URL, content)
|
||||
}
|
||||
}
|
||||
|
||||
if err := scanner.Err(); err != nil {
|
||||
fmt.Printf("Scanner error: %v\n", err)
|
||||
}
|
||||
}
|
||||
|
||||
func loadConfig() Config {
|
||||
if _, err := os.Stat(configPath); os.IsNotExist(err) {
|
||||
saveConfig(defaultConfig)
|
||||
return defaultConfig
|
||||
}
|
||||
|
||||
file, err := os.Open(configPath)
|
||||
func (b *BridgeApp) sendToPos(barcode string) {
|
||||
b.addLog(fmt.Sprintf("Captured: %s. Sending...", barcode))
|
||||
client := http.Client{Timeout: 3 * time.Second}
|
||||
resp, err := client.Get(b.urlEntry.Text + "?content=" + barcode)
|
||||
if err != nil {
|
||||
return defaultConfig
|
||||
}
|
||||
defer file.Close()
|
||||
|
||||
var cfg Config
|
||||
decoder := json.NewDecoder(file)
|
||||
if err := decoder.Decode(&cfg); err != nil {
|
||||
return defaultConfig
|
||||
}
|
||||
if cfg.Delimiter == "" {
|
||||
cfg.Delimiter = "\n"
|
||||
}
|
||||
if cfg.FlowControl == "" {
|
||||
cfg.FlowControl = "none"
|
||||
}
|
||||
return cfg
|
||||
}
|
||||
|
||||
func saveConfig(cfg Config) {
|
||||
file, err := os.Create(configPath)
|
||||
if err != nil {
|
||||
fmt.Printf("Failed to create/save config: %v\n", err)
|
||||
return
|
||||
}
|
||||
defer file.Close()
|
||||
|
||||
encoder := json.NewEncoder(file)
|
||||
encoder.SetIndent("", " ")
|
||||
encoder.Encode(cfg)
|
||||
}
|
||||
|
||||
func sendToEndpoint(baseURL, content string) {
|
||||
client := &http.Client{
|
||||
Timeout: 5 * time.Second,
|
||||
}
|
||||
|
||||
fullURL := fmt.Sprintf("%s?content=%s", baseURL, url.QueryEscape(content))
|
||||
resp, err := client.Get(fullURL)
|
||||
if err != nil {
|
||||
fmt.Printf("Network Error: %v\n", err)
|
||||
b.addLog("HTTP Error: Backend unreachable")
|
||||
return
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
|
||||
body, err := io.ReadAll(resp.Body)
|
||||
if err != nil {
|
||||
fmt.Printf("Error reading response: %v\n", err)
|
||||
return
|
||||
}
|
||||
|
||||
fmt.Printf("Data: [%s] | Status: %s\n", content, resp.Status)
|
||||
if len(body) > 0 {
|
||||
fmt.Printf("Response: %s\n", string(body))
|
||||
}
|
||||
fmt.Println(strings.Repeat("-", 30))
|
||||
b.addLog(fmt.Sprintf("Success: POS returned %d", resp.StatusCode))
|
||||
}
|
||||
|
||||
func (b *BridgeApp) usbListenLoop() {
|
||||
ctx := gousb.NewContext()
|
||||
defer ctx.Close()
|
||||
|
||||
for {
|
||||
dev, err := ctx.OpenDeviceWithVIDPID(gousb.ID(VendorID), gousb.ID(ProductID))
|
||||
|
||||
if err != nil || dev == nil {
|
||||
fyne.DoAndWait(func() {
|
||||
b.status.Text = "Status: Scanner unplugged. Waiting..."
|
||||
b.status.Color = color.NRGBA{R: 200, G: 0, B: 0, A: 255}
|
||||
b.status.Refresh()
|
||||
})
|
||||
time.Sleep(2 * time.Second)
|
||||
continue
|
||||
}
|
||||
|
||||
fyne.DoAndWait(func() {
|
||||
b.status.Text = "Status: Scanner Locked & Ready"
|
||||
b.status.Color = color.NRGBA{R: 0, G: 180, B: 0, A: 255}
|
||||
b.status.Refresh()
|
||||
})
|
||||
|
||||
intf, done, err := dev.DefaultInterface()
|
||||
if err != nil {
|
||||
b.addLog("Error claiming interface")
|
||||
dev.Close()
|
||||
time.Sleep(2 * time.Second)
|
||||
continue
|
||||
}
|
||||
|
||||
var inEp *gousb.InEndpoint
|
||||
for _, epDesc := range intf.Setting.Endpoints {
|
||||
if epDesc.Direction == gousb.EndpointDirectionIn {
|
||||
inEp, _ = intf.InEndpoint(epDesc.Number)
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
if inEp == nil {
|
||||
b.addLog("No IN endpoint found")
|
||||
done()
|
||||
dev.Close()
|
||||
continue
|
||||
}
|
||||
|
||||
currentBarcode := ""
|
||||
buf := make([]byte, inEp.Desc.MaxPacketSize)
|
||||
|
||||
for {
|
||||
n, err := inEp.Read(buf)
|
||||
if err != nil {
|
||||
// This usually happens when the device is unplugged
|
||||
break
|
||||
}
|
||||
if n < 3 {
|
||||
continue
|
||||
}
|
||||
|
||||
modifier := buf[0]
|
||||
keycode := buf[2]
|
||||
isShift := (modifier == 2 || modifier == 32)
|
||||
|
||||
if keycode == 0 {
|
||||
continue
|
||||
}
|
||||
|
||||
if keycode == 40 { // Enter
|
||||
if currentBarcode != "" {
|
||||
// Capture the barcode to avoid race conditions
|
||||
code := currentBarcode
|
||||
go b.sendToPos(code)
|
||||
currentBarcode = ""
|
||||
}
|
||||
} else if val, ok := hidMap[keycode]; ok {
|
||||
if isShift && len(val) == 1 && val[0] >= 'a' && val[0] <= 'z' {
|
||||
val = string(val[0] - 32)
|
||||
}
|
||||
currentBarcode += val
|
||||
}
|
||||
}
|
||||
|
||||
done()
|
||||
dev.Close()
|
||||
b.addLog("Hardware connection lost. Reconnecting...")
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user