From e63c083a38b99da11c1c5e6d58a198ac2935dcfd Mon Sep 17 00:00:00 2001
From: Mark Schwerzler <mark.schwerzler1@gmail.com>
Date: Sun, 18 Aug 2024 19:37:29 -0400
Subject: [PATCH] Adding the handling of the random except last assigned assign
 state.

---
 internal/chore/handler.go | 27 ++++++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

diff --git a/internal/chore/handler.go b/internal/chore/handler.go
index 01490cc..69c7c31 100644
--- a/internal/chore/handler.go
+++ b/internal/chore/handler.go
@@ -1134,7 +1134,13 @@ func checkNextAssignee(chore *chModel.Chore, choresHistory []*chModel.ChoreHisto
 		nextAssignee = chore.Assignees[rand.Intn(len(chore.Assignees))].UserID
 	case "keep_last_assigned":
 		// keep the last assignee
-		nextAssignee = history[len(history)-1].AssignedTo
+		nextAssignee = chore.AssignedTo
+	case "random_except_last_assigned":
+		var lastAssigned = chore.AssignedTo
+		AssigneesCopy := make([]chModel.ChoreAssignees, len(chore.Assignees))
+		copy(AssigneesCopy, chore.Assignees)
+		var removeLastAssigned = remove(AssigneesCopy, lastAssigned)
+		nextAssignee = removeLastAssigned[rand.Intn(len(removeLastAssigned))].UserID
 
 	default:
 		return chore.AssignedTo, fmt.Errorf("invalid assign strategy")
@@ -1143,6 +1149,25 @@ func checkNextAssignee(chore *chModel.Chore, choresHistory []*chModel.ChoreHisto
 	return nextAssignee, nil
 }
 
+func remove(s []chModel.ChoreAssignees, i int) []chModel.ChoreAssignees {
+	var removalIndex = indexOf(s, i)
+	if removalIndex == -1 {
+		return s
+	}
+
+	s[removalIndex] = s[len(s)-1]
+	return s[:len(s)-1]
+}
+
+func indexOf(arr []chModel.ChoreAssignees, value int) int {
+	for i, v := range arr {
+		if v.UserID == value {
+			return i
+		}
+	}
+	return -1 // Return -1 if the value is not found
+}
+
 func Routes(router *gin.Engine, h *Handler, auth *jwt.GinJWTMiddleware) {
 
 	choresRoutes := router.Group("chores")