From 619a3114878684be965679553630965c27731a32 Mon Sep 17 00:00:00 2001
From: Clinton Roy <clintonr@ansto.gov.au>
Date: Sun, 13 Oct 2019 10:29:59 +1100
Subject: [PATCH] basic parsing of talks csv

---
 .../management/commands/update_schedule.py    | 66 +++++++++++++++++--
 1 file changed, 59 insertions(+), 7 deletions(-)

diff --git a/pinaxcon/registrasion/management/commands/update_schedule.py b/pinaxcon/registrasion/management/commands/update_schedule.py
index e0f2a690..dbfb936c 100644
--- a/pinaxcon/registrasion/management/commands/update_schedule.py
+++ b/pinaxcon/registrasion/management/commands/update_schedule.py
@@ -1,12 +1,15 @@
 from django.core.management.base import BaseCommand
 
+from dateutil.parser import parse
+
 from collections import  Counter
 from pathlib import Path
 import csv
 
 class Command(BaseCommand):
     known_headers = ["date", "start time", "end time", "kind", "rooms"]
-
+    SLOTS = 'slots'
+    TALKS = 'talks'
 
     help = "Updates the schedule based on two csv files, "\
            "one that gives all the talk slots, the other the talks."
@@ -16,14 +19,15 @@ class Command(BaseCommand):
         return (date, start_time, end_time, room)
 
     def add_arguments(self, parser):
-        parser.add_argument('timeslots', type=Path)
-        parser.add_argument('talks', nargs="?", type=Path, default=None)
+        parser.add_argument(self.SLOTS, type=Path)
+        parser.add_argument(self.TALKS, nargs="?", type=Path, default=None)
 
     def handle(self, *args, **options):
+        all_kinds, all_rooms = set(), set()
         slot = {}
         slot_type_count = Counter()
 
-        with open(options['timeslots']) as csv_file:
+        with open(options[self.SLOTS]) as csv_file:
             csv_reader = csv.reader(csv_file)
 
             headers = next(csv_reader)
@@ -33,12 +37,60 @@ class Command(BaseCommand):
             for row in csv_reader:
                 assert len(row) == len(self.known_headers)
 
-                date, start_time, end_time, kind, rooms = row
+                rowdate, start_time, end_time, kind, rooms = row
+                all_kinds.add(kind)
+
+                if rowdate:
+                    date = rowdate
+
+                assert kind, "kind cannot be blank"
 
                 slot_type_count[(date, kind)] += 1
+                slot_name = f"{kind} {slot_type_count[(date, kind)]}"
+
                 for room in rooms.split(';'):
                     room = room.strip()
-                    slot[(date, kind, slot_type_count[(date, kind)])] = self.find_or_create_slot(
+                    all_rooms.add(room)
+
+                    slot[(date, slot_name, room)] = self.find_or_create_slot(
                         date, start_time, end_time, room)
 
-                    
+        print(slot.keys())
+
+        if options[self.TALKS]:
+            with open(options[self.TALKS]) as csv_file:
+                csv_reader = csv.reader(csv_file)
+
+                used_rooms = next(csv_reader)
+
+                assert used_rooms[0] == '', "Cell (1, 1) must be empty"
+
+                for room in used_rooms[1:]:
+                    assert room in all_rooms, f"Unknown room: {room}"
+
+                for row in csv_reader:
+                    cell = row[0]
+
+                    if cell.rsplit(' ', 1)[0] in all_kinds:
+                        kind = cell
+
+                        print('used_rooms', used_rooms)
+
+                        for i, room in enumerate(used_rooms[1:], 1):
+                            talk_id = row[i]
+
+                            if not talk_id:
+                                continue
+
+                            assert (date, kind, room) in slot, f"Slot ({date}, '{kind}', '{room}') not found"
+
+                            # TODO set the talk slot to the associated talk
+                            # place_talk(slot[(date, slot_name)].talk = int(talk_id)
+
+                    else:
+                        assert parse(row[0]), "Not a date: {row[0]}"
+
+                        date = row[0]
+
+                        for col in row[1:]:
+                            assert col == '', f"All other columns must be empty: {date}"