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

use rustypipe::{
    client::{ClientType, RustyPipe},
    report::{Report, Reporter},
};

pub async fn download_testfiles(project_root: &Path) {
    let mut testfiles = project_root.to_path_buf();
    testfiles.push("testfiles");

    tokio::join!(
        player(&testfiles),
        player_model(&testfiles),
        playlist(&testfiles),
        video_details(&testfiles),
        comments_top(&testfiles),
        channel_videos(&testfiles),
    );
}

const CLIENT_TYPES: [ClientType; 5] = [
    ClientType::Desktop,
    ClientType::DesktopMusic,
    ClientType::TvHtml5Embed,
    ClientType::Android,
    ClientType::Ios,
];

/// Store pretty-printed response json
pub struct TestFileReporter {
    path: PathBuf,
}

impl TestFileReporter {
    pub fn new<P: AsRef<Path>>(path: P) -> Self {
        Self {
            path: path.as_ref().to_path_buf(),
        }
    }
}

impl Reporter for TestFileReporter {
    fn report(&self, report: &Report) {
        let mut root = self.path.clone();
        root.set_file_name("");
        std::fs::create_dir_all(root).unwrap();

        let data =
            serde_json::from_str::<serde_json::Value>(&report.http_request.resp_body).unwrap();
        let file = File::create(&self.path).unwrap();
        serde_json::to_writer_pretty(file, &data).unwrap();

        println!("Downloaded {}", self.path.display());
    }
}

fn rp_testfile(json_path: &Path) -> RustyPipe {
    let reporter = TestFileReporter::new(json_path);
    RustyPipe::builder()
        .reporter(Box::new(reporter))
        .report()
        .strict()
        .build()
}

async fn player(testfiles: &Path) {
    let video_id = "pPvd8UxmSbQ";

    for client_type in CLIENT_TYPES {
        let mut json_path = testfiles.to_path_buf();
        json_path.push("player");
        json_path.push(format!("{:?}_video.json", client_type).to_lowercase());

        if json_path.exists() {
            continue;
        }

        let rp = rp_testfile(&json_path);
        rp.query().player(video_id, client_type).await.unwrap();
    }
}

async fn player_model(testfiles: &Path) {
    let rp = RustyPipe::builder().strict().build();

    for (name, id) in [("multilanguage", "tVWWp1PqDus"), ("hdr", "LXb3EKWsInQ")] {
        let mut json_path = testfiles.to_path_buf();
        json_path.push("player_model");
        json_path.push(format!("{}.json", name).to_lowercase());

        if json_path.exists() {
            continue;
        }

        let player_data = rp.query().player(id, ClientType::Desktop).await.unwrap();
        let file = File::create(&json_path).unwrap();
        serde_json::to_writer_pretty(file, &player_data).unwrap();

        println!("Downloaded {}", json_path.display());
    }
}

async fn playlist(testfiles: &Path) {
    for (name, id) in [
        ("short", "RDCLAK5uy_kFQXdnqMaQCVx2wpUM4ZfbsGCDibZtkJk"),
        ("long", "PL5dDx681T4bR7ZF1IuWzOv1omlRbE7PiJ"),
        ("nomusic", "PL1J-6JOckZtE_P9Xx8D3b2O6w0idhuKBe"),
    ] {
        let mut json_path = testfiles.to_path_buf();
        json_path.push("playlist");
        json_path.push(format!("playlist_{}.json", name));
        if json_path.exists() {
            continue;
        }

        let rp = rp_testfile(&json_path);
        rp.query().playlist(id).await.unwrap();
    }
}

async fn video_details(testfiles: &Path) {
    for (name, id) in [
        ("music", "XuM2onMGvTI"),
        ("mv", "ZeerrnuLi5E"),
        ("ccommons", "0rb9CfOvojk"),
        ("chapters", "nFDBxBUfE74"),
        ("live", "86YLFOog4GM"),
        ("agegate", "HRKu0cvrr_o"),
    ] {
        let mut json_path = testfiles.to_path_buf();
        json_path.push("video_details");
        json_path.push(format!("video_details_{}.json", name));
        if json_path.exists() {
            continue;
        }

        let rp = rp_testfile(&json_path);
        rp.query().video_details(id).await.unwrap();
    }
}

async fn comments_top(testfiles: &Path) {
    let mut json_path = testfiles.to_path_buf();
    json_path.push("video_details");
    json_path.push("comments_top.json");
    if json_path.exists() {
        return;
    }

    let rp = RustyPipe::new();
    let details = rp.query().video_details("ZeerrnuLi5E").await.unwrap();

    let rp = rp_testfile(&json_path);
    rp.query()
        .video_comments(&details.top_comments.ctoken.unwrap())
        .await
        .unwrap();
}

async fn channel_videos(testfiles: &Path) {
    for (name, id) in [
        ("base", "UC2DjFE7Xf11URZqWBigcVOQ"),
        ("music", "UC_vmjW5e1xEHhYjY2a0kK1A"), // YouTube Music channels have no videos
        ("shorts", "UCh8gHdtzO2tXd593_bjErWg"), // shorts and livestreams are rendered differently
        ("live", "UChs0pSaEoNLV4mevBFGaoKA"),
    ] {
        let mut json_path = testfiles.to_path_buf();
        json_path.push("channel");
        json_path.push(format!("channel_videos_{}.json", name));
        if json_path.exists() {
            continue;
        }

        let rp = rp_testfile(&json_path);
        rp.query().channel_videos(id).await.unwrap();
    }
}