use reqwest::Client;
use serde_json::{json, Value};

#[derive(serde::Deserialize, serde::Serialize)]
pub struct GitCommit {
    commit: GitCommitDetails,
}

#[derive(serde::Deserialize, serde::Serialize)]
pub struct GitCommitDetails {
    message: String,
}

pub async fn get_pull_request_commits(
    base_url: &str,
    owner: &str,
    repo: &str,
    pull_request_id: u32,
    access_token: &str,
) -> eyre::Result<Vec<String>> {
    let client = Client::new();

    let api_url = format!(
        "{}/api/v1/repos/{}/{}/pulls/{}/commits",
        base_url, owner, repo, pull_request_id
    );

    let response = client
        .get(&api_url)
        .bearer_auth(access_token)
        .send()
        .await?;

    let commits: Vec<GitCommit> = response.json().await?;

    let mut commit_titles = Vec::new();

    tracing::debug!(
        commits = serde_json::to_string(&commits)?,
        "fetched commits"
    );

    for entry in commits {
        commit_titles.push(entry.commit.message);
    }

    Ok(commit_titles)
}

#[cfg(test)]
mod tests {
    use tracing_test::traced_test;

    use super::*;

    #[tokio::test]
    #[traced_test]
    async fn test_get_pull_request_commits() {
        dotenv::dotenv().unwrap();

        let base_url = "https://git.front.kjuulh.io";
        let owner = "kjuulh";
        let repo = "test-repo";
        let pull_request_id = 3;
        let access_token = &std::env::var("GITEA_ACCESS_TOKEN").unwrap();

        let commits =
            get_pull_request_commits(base_url, owner, repo, pull_request_id, access_token)
                .await
                .unwrap();

        assert!(
            !commits.is_empty(),
            "Expected at least one commit in the pull request"
        );

        // You can add more assertions here to check the contents of the commits vector
    }
}