From bec85ffa0867b7a30e55294c230de890496e593e Mon Sep 17 00:00:00 2001
From: emkael <emkael@tlen.pl>
Date: Thu, 23 May 2019 00:53:01 +0200
Subject: RZD format support

---
 dealconvert/formats/rzd.py | 54 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/dealconvert/formats/rzd.py b/dealconvert/formats/rzd.py
index e663500..55dade2 100644
--- a/dealconvert/formats/rzd.py
+++ b/dealconvert/formats/rzd.py
@@ -1,6 +1,60 @@
+import sys
+
 from . import DealFormat
+from .. import dto
 
 class RZDFormat(DealFormat):
+    number_warning = 'WARNING: .rzd file format assumes consequent deal numbers from 1'
+
     @property
     def suffix(self):
         return '.rzd'
+
+    def parse_content(self, content):
+        dealset = []
+        header = None
+        number = 1
+        while True:
+            data = content.read(13)
+            if len(data) < 13:
+                if len(data) != 0:
+                    print 'WARNING: .rzd data truncated: %s' % (data)
+                break
+            if header is None:
+                header = data
+                continue
+            deal = dto.Deal()
+            deal.number = number
+            deal.dealer = deal.get_dealer(number)
+            deal.vulnerable = deal.get_vulnerability(number)
+            for card, byte in enumerate(data):
+                byte = ord(byte)
+                for suit in range(3, -1, -1):
+                    deal.hands[byte%4][suit].append(self.cards[card])
+                    byte /= 4
+            dealset.append(deal)
+            number += 1
+        return dealset
+
+    def output_content(self, out_file, dealset):
+        board_count = len(dealset)
+        out_file.write(chr(board_count%256))
+        out_file.write(chr(board_count/256))
+        out_file.write(' '*11)
+        values = [None] * 52
+        for deal in dealset:
+            for i, hand in enumerate(deal.hands):
+                for suit, cards in enumerate(hand):
+                    for card in cards:
+                        try:
+                            idx = self.cards.index(card)
+                        except ValueError:
+                            print 'ERROR: invalid card: %s' % (card)
+                            sys.exit()
+                        values[idx*4+suit] = i
+            for i in range(0, 13):
+                byte = 0
+                for j in range(0, 4):
+                    byte *= 4
+                    byte += values[4*i+j]
+                out_file.write(chr(byte))
-- 
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