WIP: Program to write spool data to tags

requirements.txt

@@ -1,2 +1,3 @@
 nfcpy==1.0.4
 requests==2.31.0
+npyscreen==4.10.5

write_tags.py

@@ -0,0 +1,97 @@
+#!/usr/bin/env python3
+
+""" A program to write NFC tags from Spoolman's data """
+
+import argparse
+
+import time
+import npyscreen
+
+
+# TODO: Documentation
+# TODO: Fetch spools' data from Spoolman
+# TODO: NFC writing
+
+SPOOL = "SPOOL"
+FILAMENT = "FILAMENT"
+NDEF_TEXT_TYPE = "urn:nfc:wkt:T"
+
+parser = argparse.ArgumentParser(
+    description="Fetches spools from Spoolman and allows writing info about them to RFID tags.",
+)
+
+parser.add_argument("--version", action="version", version="%(prog)s 0.0.1")
+
+parser.add_argument(
+    "-d",
+    "--nfc-device",
+    metavar="device",
+    default="ttyS0",
+    help="Which NFC reader to use, see "
+    + "https://nfcpy.readthedocs.io/en/latest/topics/get-started.html#open-a-local-device"
+    + " for format",
+)
+
+parser.add_argument(
+    "-u",
+    "--url",
+    metavar="URL",
+    default="http://mainsailos.local:7912",
+    help="URL for the Spoolman installation",
+)
+
+
+class PostList(npyscreen.MultiLineAction):
+    """A wrapper for MultiLineAction to call the write_tag function"""
+
+    def actionHighlighted(self, act_on_this, _key_press):
+        """Called when a line is chosen"""
+        self.parent.parentApp.write_tag(act_on_this)
+
+
+class PostSelectForm(npyscreen.FormBaseNew):
+    """Simple form for showing the spools"""
+
+    def create(self):
+        """Create the forms widgets"""
+        self.add(
+            npyscreen.ButtonPress,
+            name="Exit",
+            when_pressed_function=self.exit_app,
+        )
+
+        self.posts = self.add(
+            PostList,
+            values=["Data 1", "Data 2", "Data 3", "Data 4"] * 25,
+            name="Choose spools to write",
+            scroll_exit=True,
+        )
+
+    def exit_app(self):
+        """Called when exit is choosen"""
+        self.parentApp.switchForm(None)
+
+
+class TagWritingApp(npyscreen.NPSAppManaged):
+    """The npyscreen's main class for the application"""
+
+    def write_tag(self, post):
+        """Write the chosen post's data to the tag"""
+        npyscreen.notify("Writing " + post, title="Writing to tag")
+        time.sleep(0.5)
+        npyscreen.notify("Written", title="Writing to tag")
+        time.sleep(1)
+
+    def onStart(self):
+        """Called when application starts, just add the form"""
+        form = self.addForm(
+            "MAIN",
+            PostSelectForm,
+            name="Choose spool, press enter to write to tag",
+        )
+        form.set_editing(form.posts)
+
+
+if __name__ == "__main__":
+    app = TagWritingApp()
+    app.run()