// <auto-generated/>

#nullable disable

using System;
using System.ClientModel.Primitives;
using System.Diagnostics.CodeAnalysis;
using System.Text.Json;
using OpenAI;

namespace OpenAI.Chat
{
    [PersistableModelProxy(typeof(InternalUnknownChatMessage))]
    public partial class ChatMessage : IJsonModel<ChatMessage>
    {
        internal ChatMessage() : this(null, default, null)
        {
        }

        [Experimental("OPENAI001")]
        protected virtual void JsonModelWriteCore(Utf8JsonWriter writer, ModelReaderWriterOptions options)
        {
            string format = options.Format == "W" ? ((IPersistableModel<ChatMessage>)this).GetFormatFromOptions(options) : options.Format;
            if (format != "J")
            {
                throw new FormatException($"The model {nameof(ChatMessage)} does not support writing '{format}' format.");
            }
            // Plugin customization: add Content.IsInnerCollectionDefined() check
            if (Optional.IsDefined(Content) && Content.IsInnerCollectionDefined() && _additionalBinaryDataProperties?.ContainsKey("content") != true)
            {
                writer.WritePropertyName("content"u8);
                SerializeContentValue(writer, options);
            }
            if (_additionalBinaryDataProperties?.ContainsKey("role") != true)
            {
                writer.WritePropertyName("role"u8);
                writer.WriteStringValue(Role.ToSerialString());
            }
            // Plugin customization: remove options.Format != "W" check
            if (_additionalBinaryDataProperties != null)
            {
                foreach (var item in _additionalBinaryDataProperties)
                {
                    if (ModelSerializationExtensions.IsSentinelValue(item.Value))
                    {
                        continue;
                    }
                    writer.WritePropertyName(item.Key);
#if NET6_0_OR_GREATER
                    writer.WriteRawValue(item.Value);
#else
                    using (JsonDocument document = JsonDocument.Parse(item.Value))
                    {
                        JsonSerializer.Serialize(writer, document.RootElement);
                    }
#endif
                }
            }
        }

        ChatMessage IJsonModel<ChatMessage>.Create(ref Utf8JsonReader reader, ModelReaderWriterOptions options) => JsonModelCreateCore(ref reader, options);

        [Experimental("OPENAI001")]
        protected virtual ChatMessage JsonModelCreateCore(ref Utf8JsonReader reader, ModelReaderWriterOptions options)
        {
            string format = options.Format == "W" ? ((IPersistableModel<ChatMessage>)this).GetFormatFromOptions(options) : options.Format;
            if (format != "J")
            {
                throw new FormatException($"The model {nameof(ChatMessage)} does not support reading '{format}' format.");
            }
            using JsonDocument document = JsonDocument.ParseValue(ref reader);
            return DeserializeChatMessage(document.RootElement, options);
        }

        internal static ChatMessage DeserializeChatMessage(JsonElement element, ModelReaderWriterOptions options)
        {
            if (element.ValueKind == JsonValueKind.Null)
            {
                return null;
            }
            if (element.TryGetProperty("role"u8, out JsonElement discriminator))
            {
                switch (discriminator.GetString())
                {
                    case "system":
                        return SystemChatMessage.DeserializeSystemChatMessage(element, options);
                    case "developer":
                        return DeveloperChatMessage.DeserializeDeveloperChatMessage(element, options);
                    case "user":
                        return UserChatMessage.DeserializeUserChatMessage(element, options);
                    case "assistant":
                        return AssistantChatMessage.DeserializeAssistantChatMessage(element, options);
                    case "tool":
                        return ToolChatMessage.DeserializeToolChatMessage(element, options);
                    case "function":
                        return FunctionChatMessage.DeserializeFunctionChatMessage(element, options);
                }
            }
            return InternalUnknownChatMessage.DeserializeInternalUnknownChatMessage(element, options);
        }

        BinaryData IPersistableModel<ChatMessage>.Write(ModelReaderWriterOptions options) => PersistableModelWriteCore(options);

        [Experimental("OPENAI001")]
        protected virtual BinaryData PersistableModelWriteCore(ModelReaderWriterOptions options)
        {
            string format = options.Format == "W" ? ((IPersistableModel<ChatMessage>)this).GetFormatFromOptions(options) : options.Format;
            switch (format)
            {
                case "J":
                    return ModelReaderWriter.Write(this, options, OpenAIContext.Default);
                default:
                    throw new FormatException($"The model {nameof(ChatMessage)} does not support writing '{options.Format}' format.");
            }
        }

        ChatMessage IPersistableModel<ChatMessage>.Create(BinaryData data, ModelReaderWriterOptions options) => PersistableModelCreateCore(data, options);

        [Experimental("OPENAI001")]
        protected virtual ChatMessage PersistableModelCreateCore(BinaryData data, ModelReaderWriterOptions options)
        {
            string format = options.Format == "W" ? ((IPersistableModel<ChatMessage>)this).GetFormatFromOptions(options) : options.Format;
            switch (format)
            {
                case "J":
                    using (JsonDocument document = JsonDocument.Parse(data))
                    {
                        return DeserializeChatMessage(document.RootElement, options);
                    }
                default:
                    throw new FormatException($"The model {nameof(ChatMessage)} does not support reading '{options.Format}' format.");
            }
        }

        string IPersistableModel<ChatMessage>.GetFormatFromOptions(ModelReaderWriterOptions options) => "J";
    }
}
