use actix_web::{HttpResponse, web};
use uuid::Uuid;

use crate::api::response::{ApiErrorResponse, ApiResponse};
use crate::error::AppError;
use crate::models::workspaces::WorkspaceMember;
use crate::service::AppService;
use crate::service::workspace::members::UpdateMemberRoleParams;
use crate::session::Session;

#[utoipa::path(
    put,
    path = "/api/v1/workspaces/{workspace_name}/members/{member_id}/role",
    tag = "Workspaces",
    operation_id = "workspaceUpdateMemberRole",
    summary = "Update a member's role",
    description = "Change the role of a workspace member. Requires admin role. Cannot change owner role; use transfer-owner instead.",
    params(
        ("workspace_name" = String, Path, description = "Workspace name."),
        ("member_id" = Uuid, Path, description = "Member record ID.")
    ),
    request_body(
        content = UpdateMemberRoleParams,
        description = "New role value.",
        content_type = "application/json"
    ),
    responses(
        (status = 200, description = "Member role updated.", body = ApiResponse<WorkspaceMember>),
        (status = 400, description = "Invalid role, cannot change owner, or insufficient role.", body = ApiErrorResponse),
        (status = 401, description = "Unauthenticated or insufficient role.", body = ApiErrorResponse),
        (status = 404, description = "Member not found.", body = ApiErrorResponse),
        (status = 500, description = "Database transaction failed.", body = ApiErrorResponse)
    )
)]
pub async fn handle(
    service: web::Data<AppService>,
    session: Session,
    path: web::Path<(String, Uuid)>,
    params: web::Json<UpdateMemberRoleParams>,
) -> Result<HttpResponse, AppError> {
    let (ws_name, member_id) = path.into_inner();
    let ws = service.workspace.find_workspace_by_name(&ws_name).await?;
    let data = service
        .workspace
        .workspace_update_member_role(&session, &ws, member_id, params.into_inner())
        .await?;
    Ok(HttpResponse::Ok().json(ApiResponse::new(data)))
}