use fantoccini::{Client, Locator};
use perseus::wait_for_checkpoint;

// This is is an E2E test with the following steps:
//     - Go to the index page
//     - Navigate to all transactions
//     - Try all page sizes and verify that they are respected
//     - Try to go to page 2
//     - Use the async select component to find any company
//     - Click on this company and verify that we arrived
//     - Come back to the root using the top left link
//     - Find the first link in the table and click on it
//     - Verify that all the company names in the table of the new page are the same as the link we
//          clicked before
// Run like this:
//     - Run any headless browser drive like geckodriver
//     - Run perseus test
//     - The backend should be available with at least 11 saved transactions
#[perseus::test]
async fn index(c: &mut Client) -> Result<(), fantoccini::error::CmdError> {
    c.goto("http://localhost:8080").await?;
    wait_for_checkpoint!("begin", 0, c);
    let url = c.current_url().await?;
    assert!(url.as_ref().starts_with("http://localhost:8080"));

    wait_for_checkpoint!("page_interactive", 0, c);
    // Verify the page title
    let title = c.find(Locator::Css("title")).await?.html(false).await?;
    assert!(title.contains("Fast Insiders"));

    let all_transactions_link = c.find(Locator::Css("#header-all-transactions")).await?;
    all_transactions_link.click().await?;
    let url = c.current_url().await?;
    assert!(url
        .as_ref()
        .starts_with("http://localhost:8080/transactions"));
    wait_for_checkpoint!("page_interactive", 1, c);

    // Verify that the default table size is 20
    let page_size_select = c.find(Locator::Css("#size-select")).await?;
    let default_page_size = page_size_select
        .prop("value")
        .await?
        .expect("The value prop must be set");
    assert_eq!(default_page_size.parse::<i32>().unwrap(), 20);

    // Test all page sizes
    let page_sizes = [20, 30, 40, 50, 10].iter();
    for page_size in page_sizes {
        let page_size_select = c.find(Locator::Css("#size-select")).await?;
        page_size_select
            .select_by_value(&page_size.to_string())
            .await?;

        let table_rows = c.find_all(Locator::Css("table tr")).await?.iter().count();
        let page_size_select = c.find(Locator::Css("#size-select")).await?;
        let browser_page_size = page_size_select
            .prop("value")
            .await?
            .expect("The value prop must be set");
        assert_eq!(browser_page_size.parse::<usize>().unwrap(), *page_size);
        assert_eq!(table_rows, page_size + 1); // The header also counts as a table row
    }

    // Verify that we can change pages
    let page_buttons = c.find_all(Locator::Css("#page_buttons button")).await?;
    assert_eq!(page_buttons[0].text().await?, "<<");
    assert_eq!(page_buttons[1].text().await?, ">>");
    let page_numbers = c
        .find(Locator::Css("#page_buttons div"))
        .await?
        .text()
        .await?
        .split("/")
        .map(|x| x.parse().unwrap())
        .collect::<Vec<usize>>();
    assert_eq!(page_numbers[0], 1);
    page_buttons[1].click().await?;
    let new_page_numbers = c
        .find(Locator::Css("#page_buttons div"))
        .await?
        .text()
        .await?
        .split("/")
        .map(|x| x.parse().unwrap())
        .collect::<Vec<usize>>();
    assert_eq!(new_page_numbers[0], page_numbers[0] + 1);

    // let table = c.find(Locator::Css("table")).await?.html(true).await?;
    let filter_button = c.find(Locator::Css("#main button")).await?;
    filter_button.click().await?;

    let company_select = c.find(Locator::Css("#filters input")).await?;
    company_select.send_keys("E").await?; // E is one of the most used letter.

    wait_for_checkpoint!("async_select_item_change", 0, c);

    let first_company = c.find(Locator::Css("div.relative li")).await?;
    let clicked_company = first_company.text().await?;
    first_company.click().await?;

    let search_button = c.find(Locator::Css("#filters button")).await?;
    search_button.click().await?;
    let page = c.current_url().await?;
    assert!(
        page.as_ref()
            .starts_with("http://localhost:8080/transactions"),
        "Unexpected target url reached: {}",
        page
    );
    wait_for_checkpoint!("page_interactive", 2, c);
    for a in c.find_all(Locator::Css("table a")).await? {
        let a_text = a.text().await?;
        assert_eq!(clicked_company, a_text, "The clicked company is different from the target page list of companies, respectively {} and {}", clicked_company, a_text);
    }

    let transactions_link = c.find(Locator::Css("a h1")).await?;
    transactions_link.click().await?;

    let first_company_in_table = c.find(Locator::Css("table a")).await?;
    let company_name = first_company_in_table.text().await?;
    first_company_in_table.click().await?;
    for a in c.find_all(Locator::Css("table a")).await? {
        let a_text = a.text().await?;
        assert_eq!(company_name, a_text, "The clicked company is different from the target page list of companies, respectively {} and {}", company_name, a_text);
    }
    assert!(
        page.as_ref()
            .starts_with("http://localhost:8080/transactions"),
        "Unexpected target url reached: {}",
        page
    );

    Ok(())
}