use export::http::{Path, Response, State};
use maud::html;

use crate::handler::html::{HtmlRepoPath, clone_https_url, clone_ssh_url, resolve, response_html};
use crate::service::GitService;
use crate::share::access::BasicAuth;

#[utoipa::path(
    get,
    path = "/repos/{space_name}/{repo_name}/html/quickstart",
    tag = "html",
    description = "渲染空仓库或已初始化仓库的快速上手指引。",
    operation_id = "render_quickstart",
    params(HtmlRepoPath),
    responses(
        (status = 200, description = "empty repo quickstart html fragment", content_type = "text/html"),
        (status = 404, description = "repo not found")
    )
)]
pub async fn render_quickstart(
    State(service): State<GitService>,
    Path(path): Path<HtmlRepoPath>,
    auth: BasicAuth,
) -> Response {
    let ctx = match resolve(service.clone(), path.clone(), auth).await {
        Ok(c) => c,
        Err(resp) => return resp,
    };
    let is_empty = ctx.dto.commits_count == 0;
    let base = "git-quickstart space-y-3 rounded-lg border border-dashed border-zinc-300 p-4";
    let cls = if ctx.dto.is_archived {
        format!("{base} opacity-60")
    } else {
        base.to_string()
    };
    let (https_url, _) = clone_https_url(&service, &ctx.space_name, &ctx.repo_name);
    let (ssh_url, _) = clone_ssh_url(&service, &ctx.space_name, &ctx.repo_name);
    let clone_url = if !https_url.is_empty() {
        https_url.clone()
    } else {
        ssh_url.clone()
    };
    let markup = html! {
        div class=(cls)
             data-component="git-quickstart"
             data-space=(ctx.space_name)
             data-repo=(ctx.repo_name)
             data-empty=(if is_empty { "true" } else { "false" })
             data-default-branch=(ctx.dto.default_branch) {
            h3 class="text-sm font-semibold text-zinc-700" { "Quick start" }
            @if is_empty {
                div class="rounded bg-white p-3 text-xs text-zinc-600" {
                    "This repository is empty. Push an existing Git repository to get started."
                }
            } @else {
                div class="rounded bg-white p-3 text-xs text-zinc-600" {
                    "Repository is initialized. Clone it locally to start contributing."
                }
            }
            @if !clone_url.is_empty() {
                pre class="overflow-x-auto rounded bg-zinc-900 p-3 font-mono text-xs text-zinc-100" {
                    code { "git clone " (clone_url) }
                }
                pre class="overflow-x-auto rounded bg-zinc-900 p-3 font-mono text-xs text-zinc-100" {
                    code {
                        "cd " (ctx.repo_name) "\n"
                        "touch README.md\n"
                        "git add README.md\n"
                        "git commit -m \"first commit\"\n"
                        "git push -u origin " (ctx.dto.default_branch)
                    }
                }
            } @else {
                p class="text-xs text-amber-600" data-warn="missing-base-url" {
                    "Clone URL unavailable. Configure [git].base_url to enable."
                }
            }
        }
    };
    response_html(markup, 30)
}