use actix_web::{HttpResponse, web};
use serde::Deserialize;
use utoipa::IntoParams;

use crate::api::response::{ApiErrorResponse, ApiResponse};
use crate::error::AppError;
use crate::service::AppService;
use crate::session::Session;

#[derive(Debug, Deserialize, IntoParams)]
pub struct PathParams {
    /// Workspace name (unique identifier)
    pub workspace_name: String,
    /// Repository name (unique within the workspace)
    pub repo_name: String,
    /// Member ID (UUID)
    pub member_id: uuid::Uuid,
}

/// Remove a member from a repository
///
/// Revokes a user's access to the repository.
/// Requires Admin role or higher in the repository.
///
/// Restrictions:
/// - Cannot remove the repository owner (use transfer_owner instead)
/// - Cannot remove members with equal or higher role than your own
///
/// Effects:
/// - Member loses all access to the repository
/// - Member is removed from all repository activities
///
/// Returns success message on completion.
#[utoipa::path(
    delete,
    path = "/api/v1/workspaces/{workspace_name}/repos/{repo_name}/members/{member_id}",
    tag = "Repos",
    operation_id = "repoRemoveMember",
    params(PathParams),
    responses(
        (status = 200, description = "Member removed successfully.", body = ApiResponse<String>),
        (status = 400, description = "Cannot remove the repository owner or member with higher role", body = ApiErrorResponse),
        (status = 401, description = "Authentication required or session expired", body = ApiErrorResponse),
        (status = 403, description = "Insufficient permissions (requires Admin role or higher)", body = ApiErrorResponse),
        (status = 404, description = "Repository, workspace, or member not found", body = ApiErrorResponse),
        (status = 500, description = "Internal server error", body = ApiErrorResponse),
    ),
    security(
        ("session_cookie" = [])
    )
)]
pub async fn remove_member(
    service: web::Data<AppService>,
    session: Session,
    path: web::Path<PathParams>,
) -> Result<HttpResponse, AppError> {
    service
        .repo
        .repo_remove_member(
            &session,
            &path.workspace_name,
            &path.repo_name,
            path.member_id,
        )
        .await?;

    Ok(HttpResponse::Ok().json(ApiResponse::new("Member removed successfully".to_string())))
}