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//! Builder for finding Manga statistics.
//!
//! <https://api.mangadex.org/swagger.html#/Statistics/get-statistics-manga>
//!
//! This allows querying for multiple Manga.
//!
//! # Examples
//!
//! ```rust
//! use mangadex_api::types::MangaStatus;
//! use mangadex_api::v5::MangaDexClient;
//! use uuid::Uuid;
//!
//! # async fn run() -> anyhow::Result<()> {
//! let client = MangaDexClient::default();
//!
//! // Official Test Manga ID.
//! let manga_id = Uuid::parse_str("f9c33607-9180-4ba6-b85c-e4b5faee7192")?;
//!
//! let manga_stats = client
//!     .statistics()
//!     .find_manga()
//!     .manga_id(&manga_id)
//!     .build()?
//!     .send()
//!     .await?;
//!
//! println!("Response: {:?}", manga_stats);
//! # Ok(())
//! # }
//! ```

use derive_builder::Builder;
use serde::Serialize;
use uuid::Uuid;

use crate::HttpClientRef;
use mangadex_api_schema::v5::MangaStatisticsResponse;

#[derive(Debug, Serialize, Clone, Builder, Default)]
#[serde(rename_all = "camelCase")]
#[builder(setter(into, strip_option), default, pattern = "owned")]
#[non_exhaustive]
pub struct FindMangaStatistics {
    #[doc(hidden)]
    #[serde(skip)]
    #[builder(pattern = "immutable")]
    pub(crate) http_client: HttpClientRef,

    #[builder(setter(each = "manga_id"))]
    pub manga: Vec<Uuid>,
}

endpoint! {
    GET "/statistics/manga",
    // Known issue: Despite the API docs stating that authorization is required, the endpoint is
    // available to guests.
    #[query] FindMangaStatistics,
    #[flatten_result] MangaStatisticsResponse
}

#[cfg(test)]
mod tests {
    use serde_json::json;
    use url::Url;
    use uuid::Uuid;
    use wiremock::matchers::{method, path};
    use wiremock::{Mock, MockServer, ResponseTemplate};

    use crate::{HttpClient, MangaDexClient};

    #[tokio::test]
    async fn find_manga_statistics_fires_a_request_to_base_url() -> anyhow::Result<()> {
        let mock_server = MockServer::start().await;
        let http_client = HttpClient::builder()
            .base_url(Url::parse(&mock_server.uri())?)
            .build()?;
        let mangadex_client = MangaDexClient::new_with_http_client(http_client);

        let manga_id = Uuid::new_v4();

        let response_body = json!({
            "result": "ok",
            "statistics": {
                manga_id.to_string(): {
                    "rating": {
                        "average": 7.5
                    },
                    "follows": 3
                }
            }
        });

        Mock::given(method("GET"))
            .and(path("/statistics/manga"))
            .respond_with(ResponseTemplate::new(200).set_body_json(response_body))
            .expect(1)
            .mount(&mock_server)
            .await;

        let res = mangadex_client
            .statistics()
            .find_manga()
            .manga_id(&manga_id)
            .build()?
            .send()
            .await?;

        let manga_stats = res.statistics.get(&manga_id).unwrap();
        assert_eq!(manga_stats.rating.average, Some(7.5));
        assert_eq!(manga_stats.rating.distribution.r1, 0);
        assert_eq!(manga_stats.rating.distribution.r2, 0);
        assert_eq!(manga_stats.rating.distribution.r3, 0);
        assert_eq!(manga_stats.rating.distribution.r4, 0);
        assert_eq!(manga_stats.rating.distribution.r5, 0);
        assert_eq!(manga_stats.rating.distribution.r6, 0);
        assert_eq!(manga_stats.rating.distribution.r7, 0);
        assert_eq!(manga_stats.rating.distribution.r8, 0);
        assert_eq!(manga_stats.rating.distribution.r9, 0);
        assert_eq!(manga_stats.rating.distribution.r10, 0);
        assert_eq!(manga_stats.follows, 3);

        Ok(())
    }
}