use std::{
    panic::{catch_unwind, resume_unwind, UnwindSafe},
    time::Duration,
};

use actix_web::http::StatusCode;
use paste::paste;
use serde_json::{json, Value};
use tokio::time::sleep;

use super::service::Service;

macro_rules! make_settings_test_routes {
    ($($name:ident),+) => {
        $(paste! {
            pub async fn [<update_$name>](&self, value: Value) -> (Value, StatusCode) {
                let url = format!("/indexes/{}/settings/{}", self.uid, stringify!($name).replace("_", "-"));
                self.service.post(url, value).await
            }

            pub async fn [<get_$name>](&self) -> (Value, StatusCode) {
                let url = format!("/indexes/{}/settings/{}", self.uid, stringify!($name).replace("_", "-"));
                self.service.get(url).await
            }
        })*
    };
}

pub struct Index<'a> {
    pub uid: String,
    pub service: &'a Service,
}

#[allow(dead_code)]
impl Index<'_> {
    pub async fn get(&self) -> (Value, StatusCode) {
        let url = format!("/indexes/{}", self.uid);
        self.service.get(url).await
    }

    pub async fn load_test_set(&self) -> u64 {
        let url = format!("/indexes/{}/documents", self.uid);
        let (response, code) = self
            .service
            .post_str(url, include_str!("../assets/test_set.json"))
            .await;
        assert_eq!(code, 202);
        let update_id = response["updateId"].as_i64().unwrap();
        self.wait_update_id(update_id as u64).await;
        update_id as u64
    }

    pub async fn create(&self, primary_key: Option<&str>) -> (Value, StatusCode) {
        let body = json!({
            "uid": self.uid,
            "primaryKey": primary_key,
        });
        self.service.post("/indexes", body).await
    }

    pub async fn update(&self, primary_key: Option<&str>) -> (Value, StatusCode) {
        let body = json!({
            "primaryKey": primary_key,
        });
        let url = format!("/indexes/{}", self.uid);

        self.service.put(url, body).await
    }

    pub async fn delete(&self) -> (Value, StatusCode) {
        let url = format!("/indexes/{}", self.uid);
        self.service.delete(url).await
    }

    pub async fn add_documents(
        &self,
        documents: Value,
        primary_key: Option<&str>,
    ) -> (Value, StatusCode) {
        let url = match primary_key {
            Some(key) => format!("/indexes/{}/documents?primaryKey={}", self.uid, key),
            None => format!("/indexes/{}/documents", self.uid),
        };
        self.service.post(url, documents).await
    }

    pub async fn update_documents(
        &self,
        documents: Value,
        primary_key: Option<&str>,
    ) -> (Value, StatusCode) {
        let url = match primary_key {
            Some(key) => format!("/indexes/{}/documents?primaryKey={}", self.uid, key),
            None => format!("/indexes/{}/documents", self.uid),
        };
        self.service.put(url, documents).await
    }

    pub async fn wait_update_id(&self, update_id: u64) -> Value {
        // try 10 times to get status, or panic to not wait forever
        let url = format!("/indexes/{}/updates/{}", self.uid, update_id);
        for _ in 0..20 {
            let (response, status_code) = self.service.get(&url).await;
            assert_eq!(status_code, 200, "response: {}", response);

            if response["status"] == "processed" || response["status"] == "failed" {
                return response;
            }

            sleep(Duration::from_secs(1)).await;
        }
        panic!("Timeout waiting for update id");
    }

    pub async fn get_update(&self, update_id: u64) -> (Value, StatusCode) {
        let url = format!("/indexes/{}/updates/{}", self.uid, update_id);
        self.service.get(url).await
    }

    pub async fn list_updates(&self) -> (Value, StatusCode) {
        let url = format!("/indexes/{}/updates", self.uid);
        self.service.get(url).await
    }

    pub async fn get_document(
        &self,
        id: u64,
        _options: Option<GetDocumentOptions>,
    ) -> (Value, StatusCode) {
        let url = format!("/indexes/{}/documents/{}", self.uid, id);
        self.service.get(url).await
    }

    pub async fn get_all_documents(&self, options: GetAllDocumentsOptions) -> (Value, StatusCode) {
        let mut url = format!("/indexes/{}/documents?", self.uid);
        if let Some(limit) = options.limit {
            url.push_str(&format!("limit={}&", limit));
        }

        if let Some(offset) = options.offset {
            url.push_str(&format!("offset={}&", offset));
        }

        if let Some(attributes_to_retrieve) = options.attributes_to_retrieve {
            url.push_str(&format!(
                "attributesToRetrieve={}&",
                attributes_to_retrieve.join(",")
            ));
        }

        self.service.get(url).await
    }

    pub async fn delete_document(&self, id: u64) -> (Value, StatusCode) {
        let url = format!("/indexes/{}/documents/{}", self.uid, id);
        self.service.delete(url).await
    }

    pub async fn clear_all_documents(&self) -> (Value, StatusCode) {
        let url = format!("/indexes/{}/documents", self.uid);
        self.service.delete(url).await
    }

    pub async fn delete_batch(&self, ids: Vec<u64>) -> (Value, StatusCode) {
        let url = format!("/indexes/{}/documents/delete-batch", self.uid);
        self.service
            .post(url, serde_json::to_value(&ids).unwrap())
            .await
    }

    pub async fn settings(&self) -> (Value, StatusCode) {
        let url = format!("/indexes/{}/settings", self.uid);
        self.service.get(url).await
    }

    pub async fn update_settings(&self, settings: Value) -> (Value, StatusCode) {
        let url = format!("/indexes/{}/settings", self.uid);
        self.service.post(url, settings).await
    }

    pub async fn delete_settings(&self) -> (Value, StatusCode) {
        let url = format!("/indexes/{}/settings", self.uid);
        self.service.delete(url).await
    }

    pub async fn stats(&self) -> (Value, StatusCode) {
        let url = format!("/indexes/{}/stats", self.uid);
        self.service.get(url).await
    }

    /// Performs both GET and POST search queries
    pub async fn search(
        &self,
        query: Value,
        test: impl Fn(Value, StatusCode) + UnwindSafe + Clone,
    ) {
        let (response, code) = self.search_post(query.clone()).await;
        let t = test.clone();
        if let Err(e) = catch_unwind(move || t(response, code)) {
            eprintln!("Error with post search");
            resume_unwind(e);
        }

        let (response, code) = self.search_get(query).await;
        if let Err(e) = catch_unwind(move || test(response, code)) {
            eprintln!("Error with get search");
            resume_unwind(e);
        }
    }

    pub async fn search_post(&self, query: Value) -> (Value, StatusCode) {
        let url = format!("/indexes/{}/search", self.uid);
        self.service.post(url, query).await
    }

    pub async fn search_get(&self, query: Value) -> (Value, StatusCode) {
        let params = serde_url_params::to_string(&query).unwrap();
        let url = format!("/indexes/{}/search?{}", self.uid, params);
        self.service.get(url).await
    }

    make_settings_test_routes!(distinct_attribute);
}

pub struct GetDocumentOptions;

#[derive(Debug, Default)]
pub struct GetAllDocumentsOptions {
    pub limit: Option<usize>,
    pub offset: Option<usize>,
    pub attributes_to_retrieve: Option<Vec<&'static str>>,
}