/*Copyright 2016 Jesse C. Grillo

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.*/

use std::fs::File;
use std::path::{PathBuf, Path};
use std::time::Duration;

use reqwest::{Client, StatusCode};

use forecast::{ApiResponse, ApiClient, ForecastRequestBuilder,
               TimeMachineRequestBuilder, ExcludeBlock, ExtendBy,
               Lang, Units};

// constants

const LAT: f64 = 42.3736;
const LONG: f64 = -71.1097;
const TIME: u64 = 1505899999;

const TIMEOUT_SECS: u64 = 60;

// tests for serde models

fn test_response_serde(path: &Path) {
    let file = match File::open(&path) {
        Err(reason) => panic!("couldn't open {}: {}", path.display(), reason),
        Ok(file) => file
    };

    let deserialized_response: ApiResponse = serde_json::from_reader(file).unwrap();

    let serialized_response: String = serde_json::to_string(&deserialized_response).unwrap();

    let deserialized_again: ApiResponse = serde_json::from_str(&serialized_response).unwrap();

    assert_eq!(deserialized_response, deserialized_again);
}

#[test]
fn test_response_serde_10_23_2016() {
    let mut path_buf = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
    path_buf.push("resources/tests/forecast_response_10-23-2016.json");

    let path = path_buf.as_path();

    test_response_serde(path);
}

#[test]
fn test_response_serde_01_21_2018() {
    let mut path_buf = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
    path_buf.push("resources/tests/forecast_response_01-21-2018.json");

    let path = path_buf.as_path();

    test_response_serde(path);
}

// tests which perform network calls.
//
// To execute these tests, run the following command in the project
// root:
//
// FORECAST_API_KEY=$YOUR_FORECAST_API_KEY cargo test --features integration

#[tokio::test]
#[cfg(feature = "integration")]
async fn test_get_forecast_request_default() {
    let api_key = env!("FORECAST_API_KEY");

    let reqwest_client = Client::builder()
        .timeout(Duration::from_secs(TIMEOUT_SECS))
        .build()
        .unwrap();

    let api_client = ApiClient::new(&reqwest_client);

    let forecast_request = ForecastRequestBuilder::new(api_key, LAT, LONG).build();

    let response = api_client.get_forecast(forecast_request).await.unwrap();
    let status = response.status();

    assert_eq!(status, StatusCode::OK);

    let api_response: ApiResponse = serde_json::from_str(&response.text().await.unwrap()).unwrap();

    assert_eq!(api_response.latitude, LAT);
    assert_eq!(api_response.longitude, LONG);

    // Use the following invocation to display the JSON response:
    // FORECAST_API_KEY=$YOUR_FORECAST_API_KEY cargo test --features integration -- --nocapture
    println!("{}", serde_json::to_string_pretty(&api_response).unwrap());
}

#[tokio::test]
#[cfg(feature = "integration")]
async fn test_get_forecast_request_full() {
    let api_key = env!("FORECAST_API_KEY");

    let reqwest_client = Client::builder()
        .timeout(Duration::from_secs(TIMEOUT_SECS))
        .build()
        .unwrap();

    let api_client = ApiClient::new(&reqwest_client);

    let mut blocks = vec![ExcludeBlock::Alerts];

    let forecast_request = ForecastRequestBuilder::new(api_key, LAT, LONG)
        .exclude_block(ExcludeBlock::Flags)
        .exclude_blocks(&mut blocks)
        .extend(ExtendBy::Hourly)
        .lang(Lang::Swedish)
        .units(Units::SI)
        .build();

    let response = api_client.get_forecast(forecast_request).await.unwrap();
    response.headers();
    let status = response.status();

    assert_eq!(status, StatusCode::OK);

    let api_response: ApiResponse = serde_json::from_str(&response.text().await.unwrap()).unwrap();

    assert_eq!(api_response.latitude, LAT);
    assert_eq!(api_response.longitude, LONG);

    // Use the following invocation to display the JSON response:
    // FORECAST_API_KEY=$YOUR_FORECAST_API_KEY cargo test --features integration -- --nocapture
    println!("{}", serde_json::to_string_pretty(&api_response).unwrap());
}

#[tokio::test]
#[cfg(feature = "integration")]
async fn test_get_forecast_request_full_asref() {
    let api_key = env!("FORECAST_API_KEY");

    let reqwest_client = Client::builder()
        .timeout(Duration::from_secs(TIMEOUT_SECS))
        .build()
        .unwrap();

    let api_client = ApiClient::new(&reqwest_client);

    let mut blocks = vec![ExcludeBlock::Alerts];

    let forecast_request = ForecastRequestBuilder::new(api_key, LAT, LONG)
        .exclude_block(ExcludeBlock::Flags)
        .exclude_blocks(&mut blocks)
        .extend(ExtendBy::Hourly)
        .lang(Lang::Swedish)
        .units(Units::SI)
        .build();

    let response = api_client.get_forecast(&forecast_request).await.unwrap();
    response.headers();
    let status = response.status();

    assert_eq!(status, StatusCode::OK);

    let api_response: ApiResponse = serde_json::from_str(&response.text().await.unwrap()).unwrap();

    assert_eq!(api_response.latitude, LAT);
    assert_eq!(api_response.longitude, LONG);

    // Use the following invocation to display the JSON response:
    // FORECAST_API_KEY=$YOUR_FORECAST_API_KEY cargo test --features integration -- --nocapture
    println!("{}", serde_json::to_string_pretty(&api_response).unwrap());
}

#[tokio::test]
#[cfg(feature = "integration")]
async fn test_get_time_machine_request_default() {
    let api_key = env!("FORECAST_API_KEY");

    let reqwest_client = Client::builder()
        .timeout(Duration::from_secs(TIMEOUT_SECS))
        .build()
        .unwrap();

    let api_client = ApiClient::new(&reqwest_client);

    let time_machine_request = TimeMachineRequestBuilder::new(
        api_key, LAT, LONG, TIME
    ).build();

    let response = api_client.get_time_machine(time_machine_request).await.unwrap();
    let status = response.status();

    assert_eq!(status, StatusCode::OK);

    let api_response: ApiResponse = serde_json::from_str(&response.text().await.unwrap()).unwrap();

    assert_eq!(api_response.latitude, LAT);
    assert_eq!(api_response.longitude, LONG);

    // Use the following invocation to display the JSON response:
    // FORECAST_API_KEY=$YOUR_FORECAST_API_KEY cargo test --features integration -- --nocapture
    println!("{}", serde_json::to_string_pretty(&api_response).unwrap());
}

#[tokio::test]
#[cfg(feature = "integration")]
async fn test_get_time_machine_request_full() {
    let api_key = env!("FORECAST_API_KEY");

    let reqwest_client = Client::builder()
        .timeout(Duration::from_secs(TIMEOUT_SECS))
        .build()
        .unwrap();

    let api_client = ApiClient::new(&reqwest_client);

    let mut blocks = vec![ExcludeBlock::Daily];

    let time_machine_request = TimeMachineRequestBuilder::new(
        api_key, LAT, LONG, TIME
    )
        .exclude_block(ExcludeBlock::Alerts)
        .exclude_blocks(&mut blocks)
        .lang(Lang::Arabic)
        .units(Units::SI)
        .build();

    let response = api_client.get_time_machine(time_machine_request).await.unwrap();
    let status = response.status();

    assert_eq!(status, StatusCode::OK);

    let api_response: ApiResponse = serde_json::from_str(&response.text().await.unwrap()).unwrap();

    assert_eq!(api_response.latitude, LAT);
    assert_eq!(api_response.longitude, LONG);

    // Use the following invocation to display the JSON response:
    // FORECAST_API_KEY=$YOUR_FORECAST_API_KEY cargo test --features integration -- --nocapture
    println!("{}", serde_json::to_string_pretty(&api_response).unwrap());
}

#[tokio::test]
#[cfg(feature = "integration")]
async fn test_get_time_machine_request_default_asref() {
    let api_key = env!("FORECAST_API_KEY");

    let reqwest_client = Client::builder()
        .timeout(Duration::from_secs(TIMEOUT_SECS))
        .build()
        .unwrap();

    let api_client = ApiClient::new(&reqwest_client);

    let time_machine_request = TimeMachineRequestBuilder::new(
        api_key, LAT, LONG, TIME
    ).build();

    let response = api_client.get_time_machine(&time_machine_request).await.unwrap();
    let status = response.status();

    assert_eq!(status, StatusCode::OK);

    let api_response: ApiResponse = serde_json::from_str(&response.text().await.unwrap()).unwrap();

    assert_eq!(api_response.latitude, LAT);
    assert_eq!(api_response.longitude, LONG);

    // Use the following invocation to display the JSON response:
    // FORECAST_API_KEY=$YOUR_FORECAST_API_KEY cargo test --features integration -- --nocapture
    println!("{}", serde_json::to_string_pretty(&api_response).unwrap());
}