tests passing

1 files changed, 48 insertions, 11 deletions

diff --git a/core.go b/core.go
index 4472f07..3b756d8 100644
--- a/core.go
+++ b/core.go
@@ -1,30 +1,67 @@
 package main
 
+import (
+	"time"
+)
+
+type OfferPrice struct {
+	Currency string
+	MinQty   uint32
+	Price    float32
+}
+
 type Offer struct {
+	Distributor, Sku, Url, Comment string
+	Prices                         []OfferPrice
 }
 
 type LineItem struct {
+	Mfg, Mpn, Description, Comment, Tag string
+	Elements                            []string // TODO: add "circuit element" type
+	Offers                              []Offer
 }
 
-type Element struct {
+func (li *LineItem) Id() string {
+	return li.Mfg + "::" + li.Mpn
 }
 
 // The main anchor of a BOM as a cohesive whole, with a name and permissions.
 // Multiple BOMs are associated with a single BomStub; the currently active one
 // is the 'head'.
 type BomStub struct {
-	name                       *ShortName
-	owner                      string
-	description                string
-	homepage                   *Url
-	isPublicView, isPublicEdit bool
+	Name                       string
+	Owner                      string
+	Description                string
+	HeadVersion                string
+	Homepage                   *Url
+	IsPublicView, IsPublicEdit bool
 }
 
 // An actual list of parts/elements. Intended to be immutable once persisted. 
 type Bom struct {
-	version   *ShortName
-	date      uint64 // TODO: unix timestamp?
-	progeny   string // where did this BOM come from?
-	elements  []Element
-	lineitems []LineItem
+	Version   string
+	Created   time.Time // TODO: unix timestamp?
+	Progeny   string    // where did this BOM come from?
+	LineItems []LineItem
+}
+
+func NewBom(version string) *Bom {
+	return &Bom{Version: version, Created: time.Now()}
+}
+
+func (b *Bom) GetLineItem(mfg, mpn string) *LineItem {
+	for _, li := range b.LineItems {
+		if li.Mfg == mfg && li.Mpn == mpn {
+			return &li
+		}
+	}
+	return nil
+}
+
+func (b *Bom) AddLineItem(li *LineItem) error {
+	if eli := b.GetLineItem(li.Mfg, li.Mpn); eli != nil {
+		return Error("This BOM already had an identical LineItem")
+	}
+	b.LineItems = append(b.LineItems, *li)
+	return nil
 }