refactor: replace nested if with case for clarity

mc

@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 
+args=("$@")
 readonly base_url="https://api.my-mc.link/"
 readonly headers=( -H "Accept: application/json" -H "Content-Type: application/json" -H "x-my-mc-auth: ${MY_MC_API_KEY}" )
 
@@ -100,7 +101,6 @@ function usage() {
     printf "\n"
 }
 
-args=("$@")
 
 function main() {
     # remove command from arg list while preserving quoted strings.
@@ -110,15 +110,23 @@ function main() {
     
     for command in "${!commands[@]}"; do
         if [[ "$1" == "${command}" ]]; then
-            if [[ "$(second ${commands[$1]})" == "POST" ]]; then
-                curl -sS "${headers[@]}" -X "$(second ${commands[$1]})" "${base_url}$(first ${commands[$1]})" -d "$(printf "$(rest $(rest ${commands[$1]}))\n" "${args[@]}")"
-                echo ""
-            elif [[ "$(second ${commands[$1]})" == "FUNC" ]]; then
-                eval "$(first ${commands[$1]})"
-            else
-                curl -sS "${headers[@]}" -X "$(second ${commands[$1]})" "${base_url}$(first ${commands[$1]})"
-                echo ""
-            fi
+            case "$(second ${commands[$1]})" in
+                "POST")
+                    curl -sS "${headers[@]}" -X "$(second ${commands[$1]})" "${base_url}$(first ${commands[$1]})" \
+                         -d "$(printf "$(drop 2 ${commands[$1]})\n" "${args[@]}")"
+                    echo ""
+                    ;;
+                "GET") 
+                    curl -sS "${headers[@]}" -X "$(second ${commands[$1]})" "${base_url}$(first ${commands[$1]})"
+                    echo ""
+                    ;;
+                "FUNC") 
+                    eval "$(first ${commands[$1]})"
+                    ;;
+                *)
+                    echo "ERROR: Invalid state. Check for typo in command array."
+                    ;;
+            esac
     
             exit 0
         fi