Expose method to get the manual entry code from a setup payload. (#22110

) * Expose method to get the manual entry code from a setup payload. * Restyled by clang-format * Update src/darwin/Framework/CHIP/MTRSetupPayload.h Co-authored-by: Justin Wood <[email protected]> * Update src/darwin/Framework/CHIP/MTRSetupPayload.mm Co-authored-by: Justin Wood <[email protected]> Co-authored-by: Restyled.io <[email protected]> Co-authored-by: Justin Wood <[email protected]>
project-chip · Aug 26, 2022 · 1952eb7 · 1952eb7
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commit 1952eb7
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diff --git a/src/darwin/Framework/CHIP/MTRSetupPayload.h b/src/darwin/Framework/CHIP/MTRSetupPayload.h
@@ -73,6 +73,10 @@ typedef NS_ENUM(NSUInteger, MTROptionalQRCodeInfoType) {
  * Generate a random Matter-valid setup PIN.
  */
 + (NSUInteger)generateRandomPIN;
+
+/** Get 11 digit manual entry code from the setup payload. */
+- (nullable NSString *)manualEntryCode;
+
 @end
 
 NS_ASSUME_NONNULL_END
diff --git a/src/darwin/Framework/CHIP/MTRSetupPayload.mm b/src/darwin/Framework/CHIP/MTRSetupPayload.mm
@@ -18,6 +18,7 @@
 #import "MTRError.h"
 #import "MTRError_Internal.h"
 #import "MTRSetupPayload_Internal.h"
+#import "setup_payload/ManualSetupPayloadGenerator.h"
 #import <setup_payload/SetupPayload.h>
 
 @implementation MTROptionalQRCodeInfo
@@ -196,4 +197,29 @@ - (nullable instancetype)initWithCoder:(NSCoder *)decoder
     return payload;
 }
 
+- (nullable NSString *)manualEntryCode
+{
+    CHIP_ERROR err = CHIP_NO_ERROR;
+    std::string outDecimalString;
+    chip::SetupPayload payload;
+
+    /// The 11 digit manual pairing code only requires the version, VID_PID present flag,
+    /// discriminator, and the setup pincode.
+    payload.version = [self.version unsignedCharValue];
+    if (self.hasShortDiscriminator) {
+        payload.discriminator.SetShortValue([self.discriminator unsignedCharValue]);
+    } else {
+        payload.discriminator.SetLongValue([self.discriminator unsignedShortValue]);
+    }
+    payload.setUpPINCode = [self.setUpPINCode unsignedIntValue];
+
+    err = chip::ManualSetupPayloadGenerator(payload).payloadDecimalStringRepresentation(outDecimalString);
+
+    if (err != CHIP_NO_ERROR) {
+        return nil;
+    }
+
+    return [NSString stringWithUTF8String:outDecimalString.c_str()];
+}
+
 @end