use std::path::PathBuf;

use color_eyre::eyre::{ensure, Context, Result};
use stranger_site_gen::site::Site;
use walkdir::WalkDir;

/// Test that rendering a site produces the correct overall structure, does not test the contents of
/// the generated files
#[test]
fn render_structure() -> Result<()> {
    // Get a pair of temporary directories
    let tempdir_input = tempfile::tempdir().context("Failed to get temporary directory")?;
    let tempdir_input_path = tempdir_input.path();
    let tempdir_output = tempfile::tempdir().context("Failed to get temporary directory")?;
    let tempdir_output_path = tempdir_output.path();
    // Generate our site
    let mut site = Site::default();
    // Write it out
    site.write(tempdir_input_path)
        .context("Failed to write out site")?;
    // Now render the site to the output path
    site.render(tempdir_input_path, tempdir_output_path)
        .context("Failed to render site")?;
    // Generate out list of known good paths
    let mut good_paths: Vec<_> = [
        "index.html",
        "posts/new-blog-who-this.html",
        "statics/.gitkeep",
        "styles/default.css",
        "styles/index.css",
        "styles/post.css",
    ]
    .into_iter()
    .map(PathBuf::from)
    .collect();
    good_paths.sort();
    // Now walk the output directory
    let mut output_paths = Vec::new();
    for item in WalkDir::new(tempdir_output_path) {
        let item = item.context("Failed walking output")?.into_path();
        if item.is_file() {
            output_paths.push(item);
        }
    }
    output_paths.sort();
    // Compare the results
    assert_eq!(good_paths, output_paths);
    Ok(())
}