From f28631984cb8ea86193541c0564873182a9c79d6 Mon Sep 17 00:00:00 2001
From: cos <cos>
Date: Sat, 3 Oct 2015 23:43:14 +0200
Subject: Add some unit conversion to shoppinglist.

---
 mat | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 50 insertions(+), 10 deletions(-)

(limited to 'mat')

diff --git a/mat b/mat
index 12c67d8..7d60ec8 100755
--- a/mat
+++ b/mat
@@ -127,7 +127,7 @@ my @schedule = (
 sub convert_to_unit {
   my ( $out_unit, $id, $in_amount, $in_unit ) = @_;
   my %out_amount;
-  my %convert;
+  my %convert; # volume [l], weight [kg], piece [st]
 
   # SELECT DISTINCT unit FROM contents;
   # msk, krm, dl, tsk, cl, l, ml, nypa
@@ -147,9 +147,9 @@ sub convert_to_unit {
   } elsif ($in_unit eq "krm") {
     $convert{'volume'} = $in_amount * 0.001;
   } elsif ($in_unit eq "g") {
-    $convert{'weight'} = $in_amount;
+    $convert{'weight'} = $in_amount / 1000;
   } elsif ($in_unit eq "kg") {
-    $convert{'weight'} = $in_amount * 1000;
+    $convert{'weight'} = $in_amount;
   } elsif ($in_unit eq "st") {
     $convert{'piece'} = $in_amount;
   }
@@ -165,10 +165,11 @@ sub convert_to_unit {
   if ( $convert{'volume'} ) {
     $volume = 0.001 * $convert{'volume'};                            # m³
     if ($ingredient->{density}) {
-      $out_amount{'weight'} = 1000 * $density * $volume;             # g
+      $out_amount{'weight'} = $density * $volume;                    # kg
     }
   } elsif ( $convert{'weight'} ) {
-    $weight = $convert{'weight'} / 1000;                             # kg
+    $weight = $convert{'weight'};                                    # kg
+    $out_amount{'weight'} = $weight;
     if ($ingredient->{'piece_weight'}) {
       $piece_weight = $ingredient->{'piece_weight'};                 # g/piece
       $out_amount{'piece'} = $convert{'weight'} /
@@ -185,6 +186,12 @@ sub convert_to_unit {
   }
 
   if ($out_unit eq "g") {
+    if($out_amount{'weight'}) {
+      return $out_amount{'weight'} * 1000;
+    } else {
+      return
+    }
+  } elsif ($out_unit eq "kg") {
     return $out_amount{'weight'};
   } elsif ($out_unit eq "st") {
     return $out_amount{'piece'};
@@ -926,7 +933,7 @@ sub cmd_shoppinglist {
     for my $content ( keys(%$contents)) {
       my %shop;
 #       print %$contents, "\n";
-      my $ingredientcol = $db->selectcol_arrayref("SELECT name FROM ingredients WHERE id=".$content.";");
+      my $ingredientrow = $db->selectrow_arrayref("SELECT name, primary_unit FROM ingredients WHERE id=".$content.";");
 #       print $content, " ", @$ingredientcol[0], "\n";
 #       print $$contents{$content}{unit}, $content, " ", @$ingredientcol[0], "\n";
 #       print keys(%$contents), "\n";
@@ -934,12 +941,34 @@ sub cmd_shoppinglist {
       $shop{quantity} = $$contents{$content}{quantity};
 #      $shop{shop_position} = 
       $shop{unit} = $$contents{$content}{unit};
-      $shop{ingredient} = @$ingredientcol[0];
+      $shop{ingredient} = @$ingredientrow[0];
+      $shop{primary_unit} = @$ingredientrow[1];
       $shop{recipe}[0] = $recipe;
       push @shop_ingredients, \%shop;
     }
   }
-  my @sorted_ingredients = sort { $a->{ingredient} cmp $b->{ingredient} } @shop_ingredients;
+
+
+  my @converted_ingredients;
+  for my $ingredient ( @shop_ingredients )
+  {
+    my $convert_unit;
+    my $convert_result;
+
+    $convert_unit = "g";
+
+    if ($convert_unit) {
+      $convert_result = convert_to_unit($convert_unit, $ingredient->{'id'},
+          $ingredient->{'quantity'}, $ingredient->{'unit'});
+      if ( $convert_result ) {
+        $ingredient->{'unit'} = $convert_unit;
+        $ingredient->{'quantity'} = $convert_result;
+      }
+    }
+    push @converted_ingredients, $ingredient;
+  }
+
+  my @sorted_ingredients = sort { $a->{ingredient} cmp $b->{ingredient} } @converted_ingredients;
   my @squeezed_ingredients;
   for my $squeeze ( @sorted_ingredients )
   {
@@ -950,10 +979,21 @@ sub cmd_shoppinglist {
       push @squeezed_ingredients, $squeeze;
     }
   }
-#  for my $shop ( @sorted_ingredients )
   for my $shop ( @squeezed_ingredients )
   {
-    printf "%4s %-8s %-40s", $shop->{quantity}, $shop->{unit}, $shop->{ingredient};
+    my $convert_result;
+    if ($shop->{'primary_unit'}) {
+      $convert_result = convert_to_unit($shop->{'primary_unit'}, $shop->{'id'},
+          $shop->{'quantity'}, $shop->{'unit'});
+    }
+
+    printf "%4s %-8s ", $shop->{quantity}, $shop->{unit};
+    if ($convert_result) {
+      printf "%4.4s %-8s ", $convert_result, $shop->{'primary_unit'};
+    } else {
+      printf "%4.4s %-8s ", "", "";
+    }
+    printf "%-40s", $shop->{ingredient};
     for ( @{$shop->{recipe}} ) {
       print get_recipe_name($_), ", ";
     }
-- 
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