From: Ian Jackson <ian@liberator.relativity.greenend.org.uk>
Date: Mon, 18 May 2009 00:09:37 +0000 (+0100)
Subject: WIP can compute best
X-Git-Tag: 1.0~20
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~yarrgweb/git?p=ypp-sc-tools.web-live.git;a=commitdiff_plain;h=e2e8378ea302d19e2449dbfea7edc8abe481dd9f

WIP can compute best
---

diff --git a/ypp-restock-rum b/ypp-restock-rum
index 98910eb..0fe47f9 100755
--- a/ypp-restock-rum
+++ b/ypp-restock-rum
@@ -26,7 +26,7 @@ In price, missing entries mean the commodity is unavailable.
 END
 ;
 
-our (@kinds) = qw(swill grog fine shot);
+our (@kinds) = qw(Swill Grog Fine Shot);
 our (@proofs) = qw(40 60 100);
 
 sub parse_info ($$$\@$) {
@@ -65,14 +65,14 @@ sub parse_info ($$$\@$) {
     @$storeary = @v;
 }
 
-our (@haves,@want,@price);
+our (@have,@want,@price);
 
 sub parse_args () {
     @ARGV or badusage("need some information to go on");
     while (@ARGV) {
 	$_ = shift @ARGV;
 	if (m/^have$/) {
-	    parse_info(1,0,1, @{ $haves[@haves] }, 'BUG');
+	    parse_info(1,0,1, @{ $have[@have] }, 'have');
 	} elsif (m/^want$/) {
 	    parse_info(1,0,0, @want, 'want');
 	} elsif (m/^price$/) {
@@ -85,19 +85,24 @@ sub parse_args () {
 
 sub badusage ($) {
     my ($m) = @_;
-    print STDERR "bad usage: $m\n\n$usage\n";
+    print STDERR "\nbad usage: $m\n\n$usage\n";
     exit 16;
 }
 
 our $ff = '%6.1f';
 
+sub valid ($) {
+    my ($x) = @_;
+    defined $x and $x>0 and $x<1e4;
+}    
+
 sub prvff ($$\@$) {
     my ($what, $format, $ary, $unit) = @_;
-    printf("%-40s", "$what:");
-    for my $i (qw(0 1 2)) {
+    printf("%-25s", "$what:");
+    for my $i (qw(0 1 2 3)) {
 	my $x= $ary->[$i];
-	my $y= $x>0 && $x<1e5 ? sprintf $format, $x : '   x';
-	printf " %-10s", $y;
+	my $y= valid($x) ? sprintf $format, $x : '    ';
+	printf " %-9s", $y;
     }
     printf "  %s\n", $unit;
 }
@@ -119,54 +124,70 @@ sub pr1 ($$) {
 
 
 our @norm_price;
-our $best;
+our ($best, $best_norm_price);
+
+sub print_inputs () {
+    printf("%25s",'');
+    map { printf " %5s    ", $_ } @kinds;
+    print "\n\n";
+    pr('prices', @price, 'poe ea.') if valid(@price);
+    pr('target stocks', @want, 'units') if valid(@want);
+    my $i=0; for my $stocks (@have) {
+	pr('actual stocks'.(@have==1 ? '' : ' #'.++$i),
+	   @$stocks, 'units');
+    }
+    print "\n";
+}
 
 sub compute_cheapest_rum() {
     return unless @price;
 
+    my (@perorder) = map { $_*10 } @price;
+    prf('equiv. ordering price', @perorder, 'poe/order');
+
     $best= undef;
     my $best_norm_price= 1e5;
     for my $i (qw(0 1 2)) {
 	next unless $price[$i];
-	$norm_price[$i] = $price[$i] * $proofs[$i] / $proofs[$i];
+	$norm_price[$i] = $price[$i] * 100 / $proofs[$i];
 	if ($norm_price[$i] <= $best_norm_price) {
 	    $best= $i;
+	    $best_norm_price= $norm_price[$i];
 	}
     };
     prf('normalised prices', @norm_price, 'poe/fine');
+
     if (defined $best) {
-	printf "best is %s\n\n", $kinds[$best];
-    } else {
-	die "no rum available ?\n";
+	printf "best is %-10s%*s^^\n",
+	    $kinds[$best],
+	    $best*10+10, '';
+	my (@bestperorder) = map {
+	    $best_norm_price * $proofs[$_] / 100 * 10;
+	} qw(0 1 2);
+	#push @bestperorder, $perorder[3];
+	prf('best is equiv. ordering', @bestperorder, 'poe/order');
     }
+    print "\n";
 }
 
 parse_args();
-use Data::Dumper;
-print Dumper({ Have => \@haves, Want => \@want, Price => \@price });
+print_inputs();
 compute_cheapest_rum();
 
 __DATA__
 
+#    if (defined $price{Swill}) {
+#	map { $price{$_}= undef if $price{$_} eq 'x' } @rums;
+#    }
+#    if (defined $have{Swill}) {
+#	$have_proof= 0;
+#	map { $have_proof += $have{$_} * $proof{$_} } @rums;
+#    }
+
 our ($best);
 
 our $have_proof;
 
-sub print_inputs () {
-    printf("%40s",'');
-    map { printf " %5s     ", $_ } @rums;
-    print "\n\n";
-    if (defined $price{Swill}) {
-	map { $price{$_}= undef if $price{$_} eq 'x' } @rums;
-	pr('prices', %price, 'poe ea.');
-    }
-    if (defined $have{Swill}) {
-	$have_proof= 0;
-	map { $have_proof += $have{$_} * $proof{$_} } @rums;
-	pr('stock on board', %have, 'rum');
-    }
-}
-
 our ($need_proof, %need, %buy);
 
 sub compute_restock_requirements () {