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use serde_derive::{Deserialize, Serialize};
use serde_json::Value;
use uuid::Uuid;

#[derive(Serialize)]
#[serde(rename_all = "camelCase")]
pub struct RequestIdV2 {
    #[serde(rename = "@type")]
    id_type: String,

    #[serde(rename = "@value")]
    value: Uuid,
}

#[derive(Serialize)]
#[serde(rename_all = "camelCase", untagged)]
pub enum Message<T> {
    #[serde(rename_all = "camelCase")]
    V1 {
        request_id: Uuid,
        op: String,
        processor: String,
        args: T,
    },
    #[serde(rename_all = "camelCase")]
    V2 {
        request_id: RequestIdV2,
        op: String,
        processor: String,
        args: T,
    },
    #[serde(rename_all = "camelCase")]
    V3 {
        request_id: Uuid,
        op: String,
        processor: String,
        args: T,
    },
}

impl<T> Message<T> {
    #[allow(dead_code)]
    pub fn id(&self) -> &Uuid {
        match self {
            Message::V1 { request_id, .. } => request_id,
            Message::V2 { request_id, .. } => &request_id.value,
            Message::V3 { request_id, .. } => request_id,
        }
    }
}
#[derive(Debug, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct Response {
    pub request_id: Uuid,
    pub result: ResponseResult,
    pub status: ReponseStatus,
}

#[derive(Debug, Deserialize)]
pub struct ResponseResult {
    pub data: Value,
}

#[derive(Debug, Deserialize)]
pub struct ReponseStatus {
    pub code: i16,
    pub message: String,
}

pub fn message_with_args_v1<T>(op: String, processor: String, args: T) -> Message<T> {
    message_with_args_and_uuid_v1(op, processor, Uuid::new_v4(), args)
}

pub fn message_with_args_v2<T>(op: String, processor: String, args: T) -> Message<T> {
    message_with_args_and_uuid_v2(op, processor, Uuid::new_v4(), args)
}

pub fn message_with_args_and_uuid_v1<T>(
    op: String,
    processor: String,
    id: Uuid,
    args: T,
) -> Message<T> {
    Message::V1 {
        request_id: id,
        op,
        processor,
        args,
    }
}

pub fn message_with_args_and_uuid_v2<T>(
    op: String,
    processor: String,
    id: Uuid,
    args: T,
) -> Message<T> {
    Message::V2 {
        request_id: RequestIdV2 {
            id_type: "g:UUID".to_string(),
            value: id,
        },
        op,
        processor,
        args,
    }
}

pub fn message_with_args<T>(op: String, processor: String, args: T) -> Message<T> {
    message_with_args_and_uuid(op, processor, Uuid::new_v4(), args)
}

pub fn message_with_args_and_uuid<T>(
    op: String,
    processor: String,
    id: Uuid,
    args: T,
) -> Message<T> {
    Message::V3 {
        request_id: id,
        op,
        processor,
        args,
    }
}