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", "Before", "After", "Loc", "From",  "Required Date"];
  58         }
  59
  60 /*
  61         function generateTablex(): Void {
  62                 for(location in locations()) {
  63                         formatLocation(location, null);
  64                 }
  65                 for(order in this.orders()) {
  66                         this.formatRow(order);
  67                 }
  68         }
  69 */
  70
  71         function generateTable(): Void {
  72                         var startDate = Date.fromTime(0);
  73                         for(order in orders()) {
  74                                         var obj = php.Lib.objectOfAssociativeArray(order);
  75
  76                         }
  77
  78                         // Sort location by datae
  79                         var locations = this.locations();
  80                         locations.sort(function(a, b) {
  81                                 return cast(a.delivery.getTime() - b.delivery.getTime(), Int );
  82                                 });
  83
  84                 // Get the start location, it should be the first one
  85                 var locationIter = locations.iterator();
  86                 var location  = locationIter.next();
  87                 var qoh : Int = location.quantityOnHand(stock_id, null);
  88                 var left = qoh;
  89                 formatLocation(location, "Initial", left);
  90
  91                 // We display the order ordered by priority
  92                 // But insert the location when needed (meaning
  93                 // when we run out of item available
  94                 for(orderRow in orders()) {
  95                         var order = php.Lib.objectOfAssociativeArray(orderRow);
  96                         var quantity : Int = Std.parseInt(order.quantity);
  97
  98                         while(0 > left && locationIter.hasNext()) {
  99                                 location = locationIter.next();
 100                                 var quantityForLocation : Int = location.quantityOnHand(stock_id, null);
 101                                 if(quantityForLocation == null || quantityForLocation == 0) continue;
 102                                 left += quantityForLocation;
 103                                 formatLocation(location, "Delivery", left);
 104                         }
 105                         left -= quantity;
 106
 107                         formatOrder(order, left, location.delivery);
 108
 109                 }
 110
 111         }
 112
 113         function printRow(tds : Array<Dynamic>, attributes : Array<String>) {
 114                 php.Lib.print('<tr '+attributes.join(' ')+'>');
 115                 for(td in tds) {
 116                         php.Lib.print('<td>');
 117                         php.Lib.print(td);
 118                         php.Lib.print('</td>');
 119                 }
 120                 php.Lib.print('</tr>');
 121         }
 122
 123         function formatOrder(order : Dynamic, left : Int, date : Date) {
 124                         var attributes = [];
 125                         var classes = [];
 126                         var before : Int = left + order.quantity;
 127                         /* We have basically 3 different cases;
 128                          * - the order can be fullfilled
 129                          * - the order can be partially
 130                    * - not at all
 131                          */
 132                         if (before < 0 ) {
 133                                         classes.push('soldout');
 134                         }
 135                         else if(left < 0) {
 136                                         classes.push('partial');
 137                         }
 138                         else {
 139                                         classes.push('full');
 140                         }
 141
 142                         /* The order can also be late if we need
 143                          * to wait for a delivery to get it
 144                          */
 145                         var cells : Array <Dynamic> = [
 146                                 order.order_id
 147                                 ,order.deliver_to
 148                                 ,order.quantity
 149                                 ,before
 150                                 ,left
 151                                 ,order.from_stk_loc
 152                                 ,order.delivery_date
 153                                 ,order.required_date
 154                                 ,order.comment
 155                         ];
 156
 157                         attributes.push('class="'+classes.join(' ')+'"');
 158                         printRow(cells, attributes);
 159
 160         }
 161
 162         function formatRow(row) {
 163                 var array = php.Lib.hashOfAssociativeArray(row);
 164                 var quantity_before : Int = array.get('quantity_before');
 165                 var quantity_available = qoh - quantity_before;
 166                 var quantity: Int = array.get('quantity');
 167
 168                 var status : String = if(quantity_available < quantity) 'overduebg';
 169
 170                 var cells : Array<Dynamic> = [
 171                         array.get('order_id')
 172                         ,array.get('deliver_to')
 173                         ,quantity
 174                         ,quantity_available-quantity
 175                         ,quantity_available
 176                         ,array.get('from_stk_loc')
 177                         ,array.get('delivery_date')
 178                 ];
 179
 180                 php.Lib.print('<tr class="'+status+'">');
 181                 for(cell in cells) {
 182                         php.Lib.print('<td>');
 183                         php.Lib.print(cell);
 184                         php.Lib.print('</td>');
 185                 }
 186                 php.Lib.print('</tr>');
 187
 188
 189         }
 190
 191         function formatLocation(location : Location, type: String,  left : Int) {
 192                 var cells = [
 193                         type
 194                         ,location.name
 195                         ,location.quantityOnHand(stock_id, null)
 196                         ,left-location.quantityOnHand(stock_id, null)
 197                         ,left
 198                         ,location.code
 199                         ,location.delivery
 200                 ];
 201
 202                 printRow(cells, ['class = "tableheader location"']);
 203         }
 204
 205 /*
 206         function schedules() {
 207                 //return orders()+locations();
 208                 //return  orders();
 209                 return cast(locations(), Array<Dynamic>);
 210
 211         }
 212 */
 213
 214         function orders() {
 215                 var tb : String =  untyped __php__('TB_PREF');
 216                 var sql : String = "SELECT *
 217                                                 FROM "+tb+"denorm_order_details_queue  d
 218                                                 JOIN "+tb+"sales_order_details od ON (od.id = d.id)
 219                                                 JOIN "+tb+"sales_orders so ON (so.order_no = d.order_id)
 220                                                 WHERE stock_id = '"+this.stock_id+"'
 221                                                 AND od.trans_type = 30
 222                                                 ORDER by quantity_before";
 223
 224                 return FA.query(sql);
 225         }
 226
 227         function locations() {
 228                 var TB = FA.tb();
 229                 var sql = 'SELECT *
 230                                                         FROM '+TB+'locations';
 231                 var _locs = [];
 232                 for(row in FA.query(sql)) {
 233                         var location = new Location(row);
 234                         if(location.code == startLocation) {
 235                          location.delivery =  Date.fromTime(0);
 236                         }
 237                         _locs.push(location);
 238                 }
 239
 240                 return _locs;
 241
 242         }
 243
 244
 245         function purcharseOrders()  {
 246         }
 247
 248 }
 249
 250