Add UI dialog for unknown path

src/main.py

@@ -16,6 +16,7 @@ def main():
     cli = solo_turnier.cli.Cli(l)
 
     batchWorker = solo_turnier.batch.BatchWorker(cli)
+    batchWorker.prepare()
 
     if cli.showGUI():
         raise Exception('Not yet implemented')

src/solo_turnier/batch.py

@@ -5,6 +5,8 @@ import os
 import pprint
 
 import tabulate
+import tkinter.filedialog
+import tkinter.simpledialog
 
 class BatchWorker:
     def __init__(
@@ -13,16 +15,33 @@ class BatchWorker:
     ):
         self.l = logging.getLogger('solo_turnier.batch')
         self.config = config
+        self.importPath = None
+
+    def prepare(self):
+        self.importPath = self.config.importHtmlPath()
+        if self.importPath is None:
+            self.l.debug('No HTML import path was provided.')
+            self.importPath = tkinter.filedialog.askdirectory(mustexist=True, title='HMTL Export auswählen')
+            
+            if self.importPath is None or len(self.importPath) == 0:
+                self.l.critical('Import path was not selected. Aborting.')
+                tkinter.simpledialog.messagebox.showerror(
+                    title='Invalid HTML path selected',
+                    message='You did not select an appropriate folder. Aborting now.'
+                )
+                exit(1)
+        
+        self.l.debug('Using import path %s', self.importPath)
 
     def run(self, removeFilteredParicipants=True):
         self.l.debug(self.config.__dict__)
         
         locator = solo_turnier.html_locator.HtmlLocator()
-        self.l.info('Checking for feasible preview HTML export files in "%s"', self.config.importHtmlPath())
-        htmlCandidatesPreview = locator.findPreviewRoundCandidates(self.config.importHtmlPath())
+        self.l.info('Checking for feasible preview HTML export files in "%s"', self.importPath)
+        htmlCandidatesPreview = locator.findPreviewRoundCandidates(self.importPath)
         self.l.debug('Found HTML file candidates for preview rounds: %s', htmlCandidatesPreview)
 
-        htmlResultFiles = locator.findCandidates(self.config.importHtmlPath())
+        htmlResultFiles = locator.findCandidates(self.importPath)
         self.l.debug('Using HTML result files for result extraction: %s', htmlResultFiles)
 
         worker = solo_turnier.worker.Worker()

src/solo_turnier/cli.py

@@ -10,7 +10,7 @@ class Cli:
         parser.add_argument('--no-flask', action='store_false', dest='flask', help='Disable the internal flask web server')
         parser.add_argument('--port', help='The port to listen for incoming requests', default='8082')
 
-        parser.add_argument('html', help='The path from where to look for HTML export files', nargs=1, default=['.'])
+        parser.add_argument('html', help='The path from where to look for HTML export files', nargs='?', default=None)
         parser.add_argument('-o', '--output', help='Set the output path of the script', nargs=1, default=[None])
         parser.add_argument('--all-participants', '-a', action='store_true', help='Show all participants not only finalists')
 
@@ -40,7 +40,7 @@ class Cli:
         return self.__args.flask
 
     def importHtmlPath(self):
-        return self.__args.html[0]
+        return self.__args.html
     
     def importCSVPath(self):
         return self.__args.import_from[0]