plxdcma_eshop/memorymanager.js

Instala todo lo necesario para una tienda virtual

var MemoryArray=require(`plxdcma_memoryarray`)
var standarinit=require(`plxdcma_standarinit`)

var articulosImagesMemoryArray=new MemoryArray(400,function(item,items,key){
  //Como guardar [item] in [items]
  //Item es un arreglo
  items[key]=item
},function(key,items){
  //Como extraer [item] de [items]
  return items[key]
},function(key,items){
  //Como remover [item] de [items]
  delete items[key]
},function(quededItems,conclusion){
  var pool=standarinit.pool
  pool.query(`select * from mediaresource where id in (select _id from productos_recursos where id_ in (${quededItems}))`,function(er,r){
    conclusion(r)
  })
})

var articulosEstandaresMemoryArray=new MemoryArray(400,function(item,items,key){
  //Como guardar [item] in [items]
  //Item es un arreglo
  items[key]=item
},function(key,items){
  //Como extraer [item] de [items]
  return items[key]
},function(item,items){
  //Como remover [item] de [items]
  delete items[key]
},function(quededItems,conclusion){
  var pool=standarinit.pool
  let qx=`select pe.product,pe.id as standarsizeid,pe.precio,pe.inventario,pso.texto,pe.moneda from productos_estandares as pe
    inner join productos_perfil_regproducts_standaroptions as pso on pso.id = pe.texto
    where product in (${quededItems})`
  pool.query(qx,function(er,r){
    if(er != null){
      console.log(`Er`)
      console.log(er)
    }
    conclusion(r)
  })
})

var articulosCaracteristicasArray=new MemoryArray(400,function(item,items,key){
  //Como guardar [item] in [items]
  //Item es un arreglo
  if(item.length == 0){
    return false
  }
  if(items[item.id] != null){
    return false
  }
  var firstItem=item[0]
  items[firstItem.product]=item
},function(item,items){
  //Como extraer [item] de [items]
  return items[item.id]
},function(item,items){
  //Como remover [item] de [items]
  delete items[item.id]
},function(quededItems,conclusion){
  var pool=standarinit.pool
  pool.query(`select * from productos_caracteristicas where product in (${quededItems})`,function(er,r){
    if(er != null){
      console.log(`Er`)
      console.log(er)
    }
    conclusion(r)
  })
})

var articulosMemoryArray=new MemoryArray(400,function(item,items,key){
  //Como guardar [item] in [items]
  if(item.length != null){
    for(var each in item){
      var o=item[each]
      items[o.id]=o
    }
  }else{
    items[key]=item
  }

},function(key,items){
  //Como extraer [item] de [items]
  return items[key]
},function(key,items){
  //Como remover [item] de [items]
  delete items[key]
},function(quededItems,conclusion){
  var pool=standarinit.pool
  pool.query(`select * from productos where id in (${quededItems})`,function(er,r){
    if(er != null){
      console.log(`er`)
      console.log(er)
    }
    conclusion(r)
  })
})

var articulosPreviewPrecioArray=new MemoryArray(400,function(item,items,key){
  //Como guardar [item] in [items]

  if(item.length == null){
    item=[item]
  }
  for(var each in item){
    var imx=item[each]
    var ox=items[imx.product]
    if(ox == null){
      ox={
        producto:imx.product,
        moneda:imx.moneda
      }
      items[imx.product]=ox
    }
    if(ox.min == null){
      ox.min=imx.precio
    }else{
      if(imx.precio > ox.min){
        if(ox.max == null){
          imx.precio=ox.max
        }else{
          if(imx.precio > ox.max){
            ox.max=imx.precio
          }
        }
      }else{
        if(imx.precio < ox.min){
          ox.min=imx.precio
        }
      }
    }
  }

},function(key,items){
  //Como extraer [item] de [items]
  return items[key]
},function(key,items){
  //Como remover [item] de [items]
  delete items[key]
},function(quededItems,conclusion){
  var pool=standarinit.pool
  pool.query(`select * from productos_estandares where product in (${quededItems})`,function(er,r){
    if(er != null){
      console.log(`er`)
      console.log(er)
    }
    conclusion(r)
  })
})

module.exports.articulosPreviewPrecioArray=articulosPreviewPrecioArray
module.exports.memories={
  articulos:{
    objects:articulosMemoryArray,
    caracteristics:articulosCaracteristicasArray,
    images:articulosImagesMemoryArray,
    estandares:articulosEstandaresMemoryArray,
    precios:articulosPreviewPrecioArray
  }
}

module.exports.articulosImagesMemoryArray=articulosImagesMemoryArray
module.exports.articulos=function(ids,o,fn,promesasholder){
  return articulosMemoryArray.items(ids,o,fn,promesasholder)
}
module.exports.articuloByUrl=function(url,pObject,fieldName){
  var pool=standarinit.pool
  var item=articulosMemoryArray.search(function(obj){
    if(obj.url == url){
      return true
    }
    return false
  })
  if(item == null){
    return new Promise(function(accept,reject){
      pool.query(`select * from productos where ? `,{url:url},function(er,r){
        if(er != null){
          console.log(er)
        }
        articulosMemoryArray.mem(r)
        pObject[fieldName]=r[0]
        accept(r[0])
      })
    })
  }else{
    pObject[fieldName]=item
    return item
  }
}
module.exports.imagenesDelProducto=function(p){
  var pool=standarinit.pool
  var id=p.id
  if(isNaN(p) == false){
    id=p
  }
  var item=articulosImagesMemoryArray.match(function(obj){
    if(obj.id_ == id){
      return true
    }
    return false
  })
  if(item == null){
    return new Promise(function(accept,reject){
      pool.query(`select * from mediaresource where id in ( select _id from productos_recursos where id_ = ${id}) `,function(er,r){
        if(er != null){
          console.log(er)
        }
        articulosImagesMemoryArray.mem([r])
        accept(r)
      })
    })
  }else{
    return item
  }
}
module.exports.addImagenAlProducto=function(itemId,mediaresourceobj){
  var ar=articulosImagesMemoryArray.allObjects[itemId]
  if(ar != null){
    ar.push(...mediaresourceobj)
  }
  var inserts=[]
  for(var each in mediaresourceobj){
    inserts.push([itemId,mediaresourceobj[each].id])
  }
  var pool=standarinit.pool
  if(inserts.length > 0){
    pool.query(`insert into productos_recursos(id_,_id) values ? `,[inserts],function(e,r){
      console.log(e)
    })
  }
}
module.exports.caracteristicasDeArticulo=function(p,renderObject,fieldName,promesasholder){



  var pool=standarinit.pool
  var id=p.id
  if(isNaN(p) == false){
    id=p
  }
  var item=articulosCaracteristicasArray.match(function(obj){
    if(obj.product == id){
      return true
    }
    return false
  })


  if(item == null){
    promesasholder.push(new Promise(function(accept,reject){
      pool.query(`select * from productos_caracteristicas where product = ${id} `,function(er,r){
        if(er != null){
          console.log(er)
        }
        renderObject[fieldName]=r
        articulosCaracteristicasArray.mem([r])

        accept(r)
      })
    }))
  }else{
    renderObject[fieldName]=item
    return item
  }
}
module.exports.estandaresDeArticulo=function(p,renderObject,fieldName,promesasholder){
  var pool=standarinit.pool
  var id=p.id
  if(isNaN(p) == false){
    id=p
  }
  var item=articulosEstandaresMemoryArray.match(function(obj){
    if(obj.product == id){
      return true
    }
    return false
  })

  if(item == null){
    promesasholder.push(new Promise(function(accept,reject){
      pool.query(`select pe.product,pe.precio,pe.id as id,pe.inventario,pso.texto,pe.moneda from productos_estandares as pe
        inner join productos_perfil_regproducts_standaroptions as pso on pso.id = pe.texto
        where product = ${id} `,function(er,r){
        if(er != null){
          console.log(er)
        }
        renderObject[fieldName]=r
        articulosEstandaresMemoryArray.mem([r])
        accept(r)
      })
    }))
  }else{
    renderObject[fieldName]=item
    return item
  }
}
module.exports.productFirstImages=function(articulosids){
  var pending=[]
  var responses={}
  for(var each in articulosids){
    var id=articulosids[each]
    var image=null
    articulosImagesMemoryArray.match(function(o){
      if(o[0].id_ == id){
        image=o[0]._id
        return true
      }
      return false
    })
    if(image == null){
      pending.push(id)
    }else{
      responses[id]=image
    }

  }
  if(pending.length == 0){
    return responses
  }else{
    return new Promise(function(accept,reject){
      var pool=standarinit.pool
      pool.query(`select m.url,pr.id_,m.id  from productos_recursos as pr
      inner join mediaresource as m on m.id = pr._id where pr.id_ in (${articulosids}) `,function(er,r){


        if(er != null){
          console.log(er)
        }
        for(var each in r){
          var z=r[each]
          responses[z.id_]={
            id:z.id,
            url:z.url
          }
        }
        accept(responses)
      })
    })
  }
}
module.exports.productPreview=function(pid,handler){
  var pool=standarinit.pool
  var promesas=[]
  var o={}
  promesas.push(new Promise(function(resolve,reject){
    pool.query(`select nombre,descripcion from productos where id = ${pid}`,function(er,r){
      if(r.length > 0){
        o.nombre=r[0].nombre
        o.descripcion=r[0].descripcion
      }
      resolve()
    })
  }))
  articulosEstandaresMemoryArray.item(pid,o,"estandares",promesas)
  Promise.all(promesas).then(function(){

    handler(o)
  })
}

function articulosParte3(ids,articulosObjects,imageIndications,handlr){
  for(var each in articulosObjects){
    var x=articulosObjects[each]
    x.image=imageIndications[x.id]
  }
  if(handlr != null){
    handlr(articulosObjects)
  }
  return articulosObjects
}
function articulosparte2(ids,articulosObjects,handlr){
  var pf=module.exports.productFirstImages(ids)
  if(pf.then != null){
    pf.then(function(dapf){
      articulosParte3(ids,articulosObjects,dapf,handlr)
    })
  }else{
    return articulosParte3(ids,articulosObjects,pf,handlr)
  }
}
module.exports.articulosWithImages=function(ids,handler){
  var articulos=module.exports.articulos(ids)
  if(articulos.then != null){
    articulos.then(function(articulos){
      articulosparte2(ids,articulos,handler)
    })
    return null
  }else{
    return articulosparte2(ids,articulos,handler)
  }
}
module.exports.preciosDeArticulos=function(p,renderObject,fieldName,promesasholder){
  articulosPreviewPrecioArray.items(p,renderObject,fieldName,promesasholder)
}