From 958d0842ac8d404dc9a2505cd5223c4c869bff02 Mon Sep 17 00:00:00 2001
From: Kodjo Sossouvi <kodjo.sossouvi@gmail.com>
Date: Fri, 17 Apr 2020 22:09:18 +0200
Subject: [PATCH] Added interactive mode

---
 main.py                       | 57 ++++++++++++++++++++++++++---------
 requirements.txt              |  4 +++
 src/printer/SheerkaPrinter.py |  1 +
 3 files changed, 48 insertions(+), 14 deletions(-)

diff --git a/main.py b/main.py
index d5a9022..52e4ecd 100644
--- a/main.py
+++ b/main.py
@@ -1,22 +1,28 @@
 import getopt
 import sys
-import logging
-
+from os import path
+import click
 import core.utils
 from core.sheerka.Sheerka import Sheerka
+from prompt_toolkit import prompt
+from prompt_toolkit.auto_suggest import AutoSuggestFromHistory
+from prompt_toolkit.history import FileHistory
 
 
 def usage():
     print("Sheerka v0.1\n")
     print("usage:")
-    print(sys.argv[0] + "[-hdl:] command ")
+    print(sys.argv[0] + "[-hdl:] command | [-i]")
 
 
 def main(argv):
+    debug = False
+    interactive = False
+    loggers = set()
+
     try:
-        opts, args = getopt.getopt(argv, "hdl:", ["help", "debug", "logger="])
-        debug = False
-        loggers = set()
+        opts, args = getopt.getopt(argv, "hdl:i", ["help", "debug", "logger=", "interactive"])
+
         for o, a in opts:
             if o in ('-h', "--help"):
                 usage()
@@ -25,21 +31,44 @@ def main(argv):
                 debug = True
             if o in ('-l', '-logger'):
                 loggers.add(a)
+            if o in ('-i', '--interactive'):
+                interactive = True
+    except getopt.GetoptError:
+        usage()
+        sys.exit(2)
 
-        sheerka = Sheerka(debug=debug, loggers=loggers)
-        sheerka.initialize()
+    sheerka = Sheerka(debug=debug, loggers=loggers)
+    sheerka.initialize()
+    history_file = path.abspath(path.join(path.expanduser("~"), ".sheerka", "history.txt"))
 
+    if interactive:
+        while True:
+            try:
+                _in = prompt('sheerka> ',
+                             history=FileHistory(history_file),
+                             auto_suggest=AutoSuggestFromHistory(),
+                             )
+                if _in in ("exit", "quit", "bye"):
+                    print("Take care.")
+                    break
+
+                if _in == '__':
+                    _in = click.edit()
+
+                result = sheerka.evaluate_user_input(_in)
+                sheerka.print(result)
+            except KeyboardInterrupt:
+                continue
+            except EOFError:
+                print("EOFError...")
+                sys.exit(3)
+        sys.exit(0)
+    else:
         _in = core.utils.sysarg_to_string(args)
         result = sheerka.evaluate_user_input(_in)
         sheerka.print(result)
 
-        # for res in result:
-        #     logging.info(res)
-
         return result[-1].status if len(result) > 0 else 1
-    except getopt.GetoptError:
-        usage()
-        sys.exit(2)
 
 
 if __name__ == '__main__':
diff --git a/requirements.txt b/requirements.txt
index ced1479..2f1d36b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,14 +1,18 @@
 appdirs==1.4.3
 atomicwrites==1.3.0
 attrs==19.3.0
+click==7.1.1
 fs==2.4.11
+gprof2dot==2017.9.19
 more-itertools==7.2.0
 packaging==19.2
 pluggy==0.13.0
+prompt-toolkit==3.0.5
 py==1.8.0
 Pygments==2.4.2
 pyparsing==2.4.4
 pytest==5.2.2
+pytest-profiling==1.7.0
 pytz==2019.3
 six==1.13.0
 wcwidth==0.1.7
diff --git a/src/printer/SheerkaPrinter.py b/src/printer/SheerkaPrinter.py
index ea2bf98..8959033 100644
--- a/src/printer/SheerkaPrinter.py
+++ b/src/printer/SheerkaPrinter.py
@@ -1,3 +1,4 @@
+import click
 from core.builtin_concepts import BuiltinConcepts
 from core.concept import Concept
 from printer.FormatInstructions import FormatInstructions, FormatDetailType