feat: store battles and bombings

internal/controller/battle.go

@@ -14,6 +14,7 @@ type Battle struct {
 	ID             uuid.UUID
 	Planet         uint
 	observerGroups map[int]bool // True = In_Battle, False = Out_Battle
+	initialNumbers map[int]uint // Initial number of ships in the group
 	Protocol       []BattleAction
 
 	shipAmmo map[int]uint
@@ -22,7 +23,7 @@ type Battle struct {
 
 type BattleAction struct {
 	Attacker  int
-	Defenter  int
+	Defender  int
 	Destroyed bool
 }
 
@@ -94,6 +95,11 @@ func ProduceBattles(c *Cache) []*Battle {
 
 	result := make([]*Battle, 0)
 
+	// TODO: check this behavior:
+	// Multiple battles on single planet shoul be produced as single battle too:
+	// A <--> B
+	// C <--> D
+	// where: A in peace with [C, D], B in peace with [C, D], and so on.
 	for pl, observerGroups := range planetGroups {
 		battleGroups := FilterBattleGroups(c, observerGroups)
 		b := &Battle{
@@ -102,6 +108,9 @@ func ProduceBattles(c *Cache) []*Battle {
 			attacker:       make(map[int]map[int]float64),
 			shipAmmo:       make(map[int]uint),
 		}
+		for sgi := range observerGroups {
+			b.initialNumbers[sgi] = c.ShipGroup(sgi).Number
+		}
 
 		for i := range battleGroups {
 			attIdx := battleGroups[i]
@@ -159,7 +168,7 @@ func SingleBattle(c *Cache, b *Battle) {
 
 			b.Protocol = append(b.Protocol, BattleAction{
 				Attacker:  attIdx,
-				Defenter:  defIdx,
+				Defender:  defIdx,
 				Destroyed: destroyed,
 			})