private SchemaType GetPrimitiveTypeFromJsonElement()

in codegen/src/Azure.Iot.Operations.ProtocolCompiler/TypeGenerator/JsonSchemaStandardizer.cs [137:197]
58 lines of code
11 McCabe index (conditional complexity)

        private SchemaType GetPrimitiveTypeFromJsonElement(JsonElement rootElt, JsonElement schemaElt, string? internalDefsKey, string schemaFilePath, CodeName genNamespace)
        {
            switch (schemaElt.GetProperty("type").GetString())
            {
                case "array":
                    return new ArrayType(GetSchemaTypeFromJsonElement(rootElt, schemaElt.GetProperty("items"), internalDefsKey, schemaFilePath, genNamespace));
                case "object":
                    return new MapType(GetSchemaTypeFromJsonElement(rootElt, schemaElt.GetProperty("additionalProperties"), internalDefsKey, schemaFilePath, genNamespace));
                case "boolean":
                    return new BooleanType();
                case "number":
                    return schemaElt.GetProperty("format").GetString() == "float" ? new FloatType() : new DoubleType();
                case "integer":
                    return schemaElt.GetProperty("maximum").GetUInt64() switch
                    {
                        < 128 => new ByteType(),
                        < 256 => new UnsignedByteType(),
                        < 32768 => new ShortType(),
                        < 65536 => new UnsignedShortType(),
                        < 2147483648 => new IntegerType(),
                        < 4294967296 => new UnsignedIntegerType(),
                        < 9223372036854775808 => new LongType(),
                        _ => new UnsignedLongType(),
                    };
                case "string":
                    if (schemaElt.TryGetProperty("format", out JsonElement formatElt))
                    {
                        return formatElt.GetString() switch
                        {
                            "date" => new DateType(),
                            "date-time" => new DateTimeType(),
                            "time" => new TimeType(),
                            "duration" => new DurationType(),
                            "uuid" => new UuidType(),
                            _ => throw new Exception($"unrecognized 'string' schema (format = {formatElt.GetString()})"),
                        };
                    }

                    if (schemaElt.TryGetProperty("contentEncoding", out JsonElement encodingElt))
                    {
                        return encodingElt.GetString() switch
                        {
                            "base64" => new BytesType(),
                            _ => throw new Exception($"unrecognized 'string' schema (contentEncoding = {encodingElt.GetString()})"),
                        };
                    }

                    if (schemaElt.TryGetProperty("pattern", out JsonElement patternElt))
                    {
                        return patternElt.GetString() switch
                        {
                            "^(?:\\+|-)?(?:[1-9][0-9]*|0)(?:\\.[0-9]*)?$" => new DecimalType(),
                            _ => throw new Exception($"unrecognized 'string' schema (pattern = {patternElt.GetString()})"),
                        };
                    }

                    return new StringType();
                default:
                    throw new Exception($"unrecognized schema (type = {schemaElt.GetProperty("type").GetString()})");
            }
        }