[FIX] account_statement_import_sheet_file: Apply fixes on top of OCA 19.0 migration

account_statement_import_sheet_file/i18n/es.po

@@ -246,8 +246,8 @@ msgstr "Recuento de líneas omitidas a pie de página"
 
 #. module: account_statement_import_sheet_file
 #: model:ir.model.fields,field_description:account_statement_import_sheet_file.field_account_statement_import_sheet_mapping__header_lines_skip_count
-msgid "Header lines skip count"
-msgstr "Recuento de líneas de cabecera omitidas"
+msgid "Header row number"
+msgstr "Número de fila del encabezado"
 
 #. module: account_statement_import_sheet_file
 #: model:ir.model.fields,field_description:account_statement_import_sheet_file.field_account_statement_import_sheet_mapping__id
@@ -403,8 +403,8 @@ msgstr ""
 
 #. module: account_statement_import_sheet_file
 #: model:ir.model.fields,help:account_statement_import_sheet_file.field_account_statement_import_sheet_mapping__header_lines_skip_count
-msgid "Set the Header lines number."
-msgstr "Establezca el número de líneas de Cabecera."
+msgid "Row number where the column headers are located (first row is 0)."
+msgstr "Número de fila donde se encuentran los encabezados de columna (la primera fila es 0)."
 
 #. module: account_statement_import_sheet_file
 #: model:ir.model.fields,field_description:account_statement_import_sheet_file.field_account_statement_import__sheet_mapping_id

account_statement_import_sheet_file/models/account_statement_import_sheet_mapping.py

@@ -77,9 +77,6 @@ class AccountStatementImportSheetMapping(models.Model):
             "transaction from"
         ),
     )
-    amount_column = fields.Char(
-        help="Amount of transaction in journal's currency",
-    )
     amount_debit_column = fields.Char(
         string="Debit amount column",
         help="Debit amount of transaction in journal's currency",
@@ -122,7 +119,7 @@ class AccountStatementImportSheetMapping(models.Model):
         required=True,
         default="simple_value",
         help=(
-            "Simple value: use igned amount in amount column\n"
+            "Simple value: use signed amount in amount column\n"
             "Absolute Value: use a same column for debit and credit\n"
             "(absolute value + indicate sign)\n"
             "Distinct Credit/debit Column: use a distinct column for debit and credit"
@@ -173,8 +170,8 @@ class AccountStatementImportSheetMapping(models.Model):
         default="0",
     )
     header_lines_skip_count = fields.Integer(
-        string="Header lines skip count",
-        help="Set the Header lines number.",
+        string="Header row number",
+        help="Row number where the column headers are located (first row is 0).",
         default="0",
     )
     skip_empty_lines = fields.Boolean(
@@ -238,6 +235,13 @@ def _check_columns(self):
             if mapping.offset_column < 0:
                 raise ValidationError(self.env._("Offsets cannot be negative"))
 
+    @api.onchange("amount_type")
+    def _clear_amount_columns(self):
+        self.amount_column = False
+        self.debit_credit_column = False
+        self.amount_debit_column = False
+        self.amount_credit_column = False
+
     def _get_float_separators(self):
         self.ensure_one()
         separators = {