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use forgejo_api::structs::{Issue, IssueListIssuesQuery};

use crate::actions::GeneralArgs;
use crate::render::option::{option_debug_display, option_display};
use crate::render::spinner::spin_until_ready;
use crate::types::context::BergContext;
use crate::types::git::OwnerRepo;

use clap::Parser;

/// List all issues in the current repository
#[derive(Parser, Debug)]
pub struct ListIssueArgs {
    /// Number of issues to be displayed
    #[arg(short, long, value_name = "N")]
    pub count: Option<u32>,
}

impl ListIssueArgs {
    pub async fn run(self, general_args: GeneralArgs) -> anyhow::Result<()> {
        let _ = general_args;
        let ctx = BergContext::new(self).await?;
        let OwnerRepo { repo, owner } = ctx.owner_repo()?;
        let mut issues_list = spin_until_ready(ctx.client.issue_list_issues(
            owner.as_str(),
            repo.as_str(),
            IssueListIssuesQuery {
                page: ctx.args.count.as_ref().map(|_| 1),
                limit: ctx.args.count,
                ..Default::default()
            },
        ))
        .await?;

        issues_list.retain(|issue| issue.pull_request.is_none());

        present_issues_list(&ctx, issues_list);

        Ok(())
    }
}

fn present_issues_list(ctx: &BergContext<ListIssueArgs>, issues: Vec<Issue>) {
    let issues_empty = issues.is_empty();

    let mut table = ctx.make_table();

    table.set_header(vec![format!(
        "Issues{}",
        issues_empty.then_some(" (empty)").unwrap_or_default()
    )]);

    let mut table_inner = ctx.make_table();

    if !issues_empty {
        table_inner
            .set_header(vec!["Number", "Status", "Name", "Labels"])
            .add_rows(issues.into_iter().map(|issue| {
                let Issue {
                    title,
                    number,
                    labels,
                    state,
                    ..
                } = issue;
                let labels = labels.map(|labels| {
                    labels
                        .into_iter()
                        .map(|label| format!("{}", option_display(&label.name)))
                        .collect::<Vec<_>>()
                        .join(",")
                });
                vec![
                    option_display(&number),
                    option_debug_display(&state),
                    option_display(&title),
                    option_display(&labels),
                ]
            }));
        table.add_row(vec![format!("{table_inner}")]);
    }

    println!("{table}");
}