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use poem::{FromRequest, IntoResponse, Request, RequestBody, Response};

use crate::{payload::Payload, registry::MetaSchemaRef, types::Type, ParseRequestError};

/// A UTF8 string payload.
#[derive(Debug, Clone, Eq, PartialEq)]
pub struct PlainText(pub String);

impl<T: Into<String>> From<T> for PlainText {
    fn from(value: T) -> Self {
        Self(value.into())
    }
}

#[poem::async_trait]
impl Payload for PlainText {
    const CONTENT_TYPE: &'static str = "text/plain";

    fn schema_ref() -> MetaSchemaRef {
        String::schema_ref()
    }

    async fn from_request(
        request: &Request,
        body: &mut RequestBody,
    ) -> Result<Self, ParseRequestError> {
        Ok(Self(String::from_request(request, body).await.map_err(
            |err| ParseRequestError::ParseRequestBody {
                reason: err.to_string(),
            },
        )?))
    }
}

impl IntoResponse for PlainText {
    fn into_response(self) -> Response {
        Response::builder()
            .content_type(Self::CONTENT_TYPE)
            .body(self.0)
    }
}