From 29e6749316cabd44939a79f50aa70b418f221bf9 Mon Sep 17 00:00:00 2001
From: Zachary Gorman <zgorman@samhealth.org>
Date: Fri, 26 Jul 2024 14:13:08 -0700
Subject: [PATCH] Starting Spark integration

---
 Private/Spark.ps1 | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 Private/Spark.ps1

diff --git a/Private/Spark.ps1 b/Private/Spark.ps1
new file mode 100644
index 0000000..d99bdd0
--- /dev/null
+++ b/Private/Spark.ps1
@@ -0,0 +1,45 @@
+$SparkHeaders = @{
+    "Content-Type" = "application/json"
+    "Authorization" = ""
+    "Accept" = "*/*"
+    "Accept-Encoding" = "gzip, deflate, br"
+}
+
+$SparkTenantPrefix = "samaritanhealth-amc"
+$SparkURL = "https://$SparkTenantPrefix.ivanticloud.com"
+
+Function Connect-ISM {
+    try {
+        #Try a fast route to check if authorization headers are set properly
+        Invoke-RestMethod -Method Get -URI "$SparkURL/api/odata" -Headers $SparkHeaders
+    } catch {
+        $errobject = ConvertFrom-Json $_
+        #A 404 means we were authorized and didn't find anything, as intended!
+        if ($errobject.code -eq "ISM_4004") { return }
+        #Anything other than a 401 Unauthorized is unexpected, attempt to handle gracefully
+        if ($errobject.code -ne "ISM_4001") { 
+            Write-Host -ForegroundColor Red "Unexpected error connecting to Spark!"
+            Write-Host -ForegroundColor Red "$errobject"
+            $SparkHeaders["Authorization"] = ""
+            return 
+        }
+        #Unuathorized response, so let's update our authorization!
+        if ( $SparkHeaders["Authorization"] ) {
+            Write-Host "Spark Authorization key expired, please update key"
+        }
+        $authKey = Read-Host "Login to Spark, open browser dev tools, and paste SID cookie here, or an API key if you have one"
+        if ($authKey -match "[0-9A-F](32)") {
+            $SparkHeaders["Authorization"] = "rest_api_key=$authKey"
+        } elseif ($authKey -match "$($SparkURL.split('/')[-1])#.*#") {
+            $SparkHeaders["Authorization"] = $authKey
+        } else {
+            Write-Host -ForegroundColor Yellow "Authorization key not a recognized key format"
+            $SparkHeaders["Authorization"] = ""
+        }
+    }
+}
+
+Function Check-SparkEnabled {
+    return -not -not $SparkHeaders["Authorization"]
+}
+