haxe/ItemScheduler.hx

   1 import php.Lib;
   2
   3 enum Maybe<T> {
   4         Nothing;
   5         Just(v : T);
   6 }
   7
   8 class QueryIterator<T> {
   9         var result : Dynamic;
  10         var nextValue : Maybe<T>;
  11         public function new(result) {
  12                 this.result= result;
  13                 /* We fetch the first row , so we can answer hasNext */
  14                 fetch();
  15         }
  16
  17         private function fetch() {
  18                 var next : Dynamic = untyped __call__('db_fetch', this.result);
  19                 nextValue = if(next) Just(next) else Nothing;
  20         }
  21
  22         public function  hasNext() : Bool {
  23                 return this.nextValue != Nothing;
  24         }
  25
  26         public function next() : T {
  27                 switch(this.nextValue) {
  28                 case Nothing : throw 'Iterator exhausted';
  29                 case Just(v) :  {
  30                         this.fetch();
  31                         return v;
  32                 };
  33                 }
  34         }
  35 }
  36 class FA {
  37         static public function query(sql: String) {
  38                 var result = untyped __call__('db_query', sql, sql);
  39                 return new QueryIterator(result);
  40         }
  41
  42         static public function tb() : String {
  43                 return untyped __php__('TB_PREF');
  44         }
  45 }
  46 class ItemScheduler {
  47         var stock_id:String;
  48         var startLocation:String;
  49         var qoh: Int;
  50         function new(stock_id: String, startLocation) {
  51                 this.stock_id = stock_id;
  52                 this.startLocation = startLocation;
  53                 qoh =  untyped __call__('get_qoh_on_date', this.stock_id, 'DEF');
  54         }
  55
  56         function tableHeader() {
  57                 return ["Order", "Customer", "Quantity", "Left", "On Hand", "Loc", "Required Date"];
  58         }
  59
  60         function generateTablex(): Void {
  61                 for(location in locations()) {
  62                         formatLocation(location, null);
  63                 }
  64                 for(order in this.orders()) {
  65                         this.formatRow(order);
  66                 }
  67         }
  68
  69         function generateTable(): Void {
  70                         var startDate = Date.fromTime(0);
  71                         for(order in orders()) {
  72                                         var obj = php.Lib.objectOfAssociativeArray(order);
  73
  74                         }
  75
  76                         // Sort location by datae
  77                         var locations = this.locations();
  78                         locations.sort(function(a, b) {
  79                                 return cast(a.delivery.getTime() - b.delivery.getTime(), Int );
  80                                 });
  81
  82                 // Get the start location, it should be the first one
  83                 var locationIter = locations.iterator();
  84                 var location  = locationIter.next();
  85                 var qoh : Int = location.quantityOnHand(stock_id, null);
  86                 var left = qoh;
  87                 formatLocation(location, left);
  88
  89                 // We display the order ordered by priority
  90                 // But insert the location when needed (meaning
  91                 // when we run out of item available
  92                 for(orderRow in orders()) {
  93                         var order = php.Lib.objectOfAssociativeArray(orderRow);
  94                         var quantity : Int = Std.parseInt(order.quantity);
  95
  96                         while(quantity > left && locationIter.hasNext()) {
  97                                 location = locationIter.next();
  98                                 var quantityForLocation : Int = location.quantityOnHand(stock_id, null);
  99                                 if(quantityForLocation == null || quantityForLocation == 0) continue;
 100                                 left += quantityForLocation;
 101                                 trace(quantityForLocation);
 102                                 formatLocation(location, left);
 103                         }
 104                         left -= quantity;
 105
 106                         formatOrder(order, left);
 107
 108                 }
 109
 110         }
 111
 112         function printRow(tds : Array<Dynamic>, attributes : Array<String>) {
 113                 php.Lib.print('<tr "'+attributes.join(' ')+'">');
 114                 for(td in tds) {
 115                         php.Lib.print('<td>');
 116                         php.Lib.print(td);
 117                         php.Lib.print('</td>');
 118                 }
 119                 php.Lib.print('</tr>');
 120         }
 121
 122         function formatOrder(order : Dynamic, left : Int) {
 123                         var attributes = [];
 124                         var cells : Array <Dynamic> = [
 125                                 order.order_id
 126                                 ,order.deliver_to
 127                                 ,order.quantity
 128                                 ,left
 129                                 ,left+order.quantity
 130                                 ,order.from_stk_code
 131                                 ,order.delivery_date
 132                         ];
 133                         printRow(cells, attributes);
 134
 135         }
 136
 137         function formatRow(row) {
 138                 var array = php.Lib.hashOfAssociativeArray(row);
 139                 var quantity_before : Int = array.get('quantity_before');
 140                 var quantity_available = qoh - quantity_before;
 141                 var quantity: Int = array.get('quantity');
 142
 143                 var status : String = if(quantity_available < quantity) 'overduebg';
 144
 145                 var cells : Array<Dynamic> = [
 146                         array.get('order_id')
 147                         ,array.get('deliver_to')
 148                         ,quantity
 149                         ,quantity_available-quantity
 150                         ,quantity_available
 151                         ,array.get('from_stk_loc')
 152                         ,array.get('delivery_date')
 153                 ];
 154
 155                 php.Lib.print('<tr class="'+status+'">');
 156                 for(cell in cells) {
 157                         php.Lib.print('<td>');
 158                         php.Lib.print(cell);
 159                         php.Lib.print('</td>');
 160                 }
 161                 php.Lib.print('</tr>');
 162
 163
 164         }
 165
 166         function formatLocation(location : Location, left : Int) {
 167                 var cells = [
 168                         location.code
 169                         ,location.name
 170                         ,location.quantityOnHand(stock_id, null)
 171                         ,left
 172                         ,location.delivery
 173                 ];
 174                 var status = 'header';
 175                 php.Lib.print('<tr class="'+status+'">');
 176                 for(cell in cells) {
 177                         php.Lib.print('<td>');
 178                         php.Lib.print(cell);
 179                         php.Lib.print('</td>');
 180                 }
 181                 php.Lib.print('</tr>');
 182         }
 183
 184 /*
 185         function schedules() {
 186                 //return orders()+locations();
 187                 //return  orders();
 188                 return cast(locations(), Array<Dynamic>);
 189
 190         }
 191 */
 192
 193         function orders() {
 194                 var tb : String =  untyped __php__('TB_PREF');
 195                 var sql : String = "SELECT *
 196                                                 FROM "+tb+"denorm_order_details_queue
 197                                                 JOIN  "+tb+"sales_orders ON (order_no = order_id)
 198                                                 WHERE stock_id = '"+this.stock_id+"'
 199                                                 ORDER by quantity_before";
 200
 201                 return FA.query(sql);
 202         }
 203
 204         function locations() {
 205                 var TB = FA.tb();
 206                 var sql = 'SELECT *
 207                                                         FROM '+TB+'locations';
 208                 var _locs = [];
 209                 for(row in FA.query(sql)) {
 210                         var location = new Location(row);
 211                         if(location.code == startLocation) {
 212                          location.delivery =  Date.fromTime(0);
 213                         }
 214                         _locs.push(location);
 215                 }
 216
 217                 return _locs;
 218
 219         }
 220
 221
 222         function purcharseOrders()  {
 223         }
 224
 225 }
 226
 227