import { describe, expect, it } from "vitest";
import { PermissionKey, SystemRole, type PermissionKey as PermissionKeyValue } from "@capakraken/shared";
import { getAvailableAssistantTools } from "../router/assistant-tool-policy.js";

function getToolNames(
  permissions: PermissionKeyValue[],
  userRole: SystemRole = SystemRole.ADMIN,
) {
  return getAvailableAssistantTools(new Set(permissions), userRole).map((tool) => tool.function.name);
}

describe("assistant tool policy access", () => {
  it("hides advanced tools unless the dedicated assistant permission is granted", () => {
    const withoutAdvanced = getToolNames([
      PermissionKey.VIEW_PLANNING,
      PermissionKey.VIEW_COSTS,
    ]);
    const withAdvanced = getToolNames([
      PermissionKey.VIEW_PLANNING,
      PermissionKey.VIEW_COSTS,
      PermissionKey.USE_ASSISTANT_ADVANCED_TOOLS,
    ]);

    expect(withoutAdvanced).not.toContain("find_best_project_resource");
    expect(withAdvanced).toContain("find_best_project_resource");
    expect(withAdvanced).toContain("get_chargeability_report");
    expect(withAdvanced).toContain("get_resource_computation_graph");
    expect(withAdvanced).toContain("get_project_computation_graph");
  });

  it("keeps user self-service tools available to plain authenticated users", () => {
    const userNames = getToolNames([], SystemRole.USER);

    expect(userNames).toContain("get_current_user");
    expect(userNames).toContain("get_dashboard_layout");
    expect(userNames).toContain("save_dashboard_layout");
    expect(userNames).toContain("get_favorite_project_ids");
    expect(userNames).toContain("toggle_favorite_project");
    expect(userNames).toContain("get_column_preferences");
    expect(userNames).toContain("set_column_preferences");
    expect(userNames).toContain("get_mfa_status");
    expect(userNames).toContain("list_notifications");
    expect(userNames).toContain("get_unread_notification_count");
    expect(userNames).toContain("list_tasks");
    expect(userNames).toContain("get_task_counts");
    expect(userNames).toContain("create_reminder");
    expect(userNames).toContain("list_reminders");
    expect(userNames).toContain("update_reminder");
    expect(userNames).toContain("delete_reminder");
  });

  it("keeps admin-only user tools hidden from non-admin roles", () => {
    const adminNames = getToolNames([], SystemRole.ADMIN);
    const managerNames = getToolNames([], SystemRole.MANAGER);
    const userNames = getToolNames([], SystemRole.USER);

    expect(adminNames).toContain("list_users");
    expect(adminNames).toContain("get_active_user_count");
    expect(adminNames).toContain("create_user");
    expect(adminNames).toContain("set_user_password");
    expect(adminNames).toContain("update_user_role");
    expect(adminNames).toContain("update_user_name");
    expect(adminNames).toContain("link_user_resource");
    expect(adminNames).toContain("auto_link_users_by_email");
    expect(adminNames).toContain("set_user_permissions");
    expect(adminNames).toContain("reset_user_permissions");
    expect(adminNames).toContain("get_effective_user_permissions");
    expect(adminNames).toContain("disable_user_totp");

    expect(managerNames).not.toContain("list_users");
    expect(managerNames).not.toContain("create_user");
    expect(managerNames).not.toContain("set_user_permissions");
    expect(managerNames).not.toContain("disable_user_totp");
    expect(userNames).not.toContain("list_users");
    expect(userNames).not.toContain("get_active_user_count");
    expect(userNames).not.toContain("create_user");
    expect(userNames).not.toContain("set_user_password");
    expect(userNames).not.toContain("update_user_role");
    expect(userNames).not.toContain("update_user_name");
    expect(userNames).not.toContain("link_user_resource");
    expect(userNames).not.toContain("auto_link_users_by_email");
    expect(userNames).not.toContain("set_user_permissions");
    expect(userNames).not.toContain("reset_user_permissions");
    expect(userNames).not.toContain("get_effective_user_permissions");
    expect(userNames).not.toContain("disable_user_totp");
  });

  it("keeps assignable users and manager notification lifecycle tools behind manager/admin role", () => {
    const managerNames = getToolNames([], SystemRole.MANAGER);
    const adminNames = getToolNames([], SystemRole.ADMIN);
    const userNames = getToolNames([], SystemRole.USER);

    expect(managerNames).toContain("list_assignable_users");
    expect(managerNames).toContain("create_notification");
    expect(managerNames).toContain("create_task_for_user");
    expect(managerNames).toContain("assign_task");
    expect(managerNames).toContain("send_broadcast");
    expect(managerNames).toContain("list_broadcasts");
    expect(managerNames).toContain("get_broadcast_detail");
    expect(adminNames).toContain("list_assignable_users");
    expect(adminNames).toContain("create_task_for_user");
    expect(adminNames).toContain("send_broadcast");
    expect(userNames).not.toContain("list_assignable_users");
    expect(userNames).not.toContain("create_notification");
    expect(userNames).not.toContain("create_task_for_user");
    expect(userNames).not.toContain("assign_task");
    expect(userNames).not.toContain("send_broadcast");
    expect(userNames).not.toContain("list_broadcasts");
    expect(userNames).not.toContain("get_broadcast_detail");
  });

  it("continues to hide cost-aware advanced tools when viewCosts is missing", () => {
    const names = getToolNames([PermissionKey.USE_ASSISTANT_ADVANCED_TOOLS]);

    expect(names).not.toContain("find_best_project_resource");
    expect(names).not.toContain("get_chargeability_report");
    expect(names).not.toContain("get_resource_computation_graph");
    expect(names).not.toContain("get_project_computation_graph");
  });

  it("keeps controller-grade readmodels hidden from plain users while allowing controller roles", () => {
    const controllerNames = getToolNames([
      PermissionKey.VIEW_COSTS,
      PermissionKey.USE_ASSISTANT_ADVANCED_TOOLS,
    ], SystemRole.CONTROLLER);
    const userNames = getToolNames([
      PermissionKey.VIEW_COSTS,
      PermissionKey.USE_ASSISTANT_ADVANCED_TOOLS,
    ], SystemRole.USER);

    expect(controllerNames).toContain("query_change_history");
    expect(controllerNames).toContain("get_entity_timeline");
    expect(controllerNames).toContain("search_by_skill");
    expect(controllerNames).toContain("export_resources_csv");
    expect(controllerNames).toContain("export_projects_csv");
    expect(controllerNames).toContain("list_audit_log_entries");
    expect(controllerNames).toContain("get_audit_log_entry");
    expect(controllerNames).toContain("get_audit_log_timeline");
    expect(controllerNames).toContain("get_audit_activity_summary");
    expect(controllerNames).toContain("get_chargeability_report");
    expect(controllerNames).toContain("get_resource_computation_graph");
    expect(controllerNames).toContain("get_project_computation_graph");
    expect(userNames).not.toContain("query_change_history");
    expect(userNames).not.toContain("get_entity_timeline");
    expect(userNames).not.toContain("search_by_skill");
    expect(userNames).not.toContain("export_resources_csv");
    expect(userNames).not.toContain("export_projects_csv");
    expect(userNames).not.toContain("list_audit_log_entries");
    expect(userNames).not.toContain("get_audit_log_entry");
    expect(userNames).not.toContain("get_audit_log_timeline");
    expect(userNames).not.toContain("get_audit_activity_summary");
    expect(userNames).not.toContain("get_chargeability_report");
    expect(userNames).not.toContain("get_resource_computation_graph");
    expect(userNames).not.toContain("get_project_computation_graph");
  });

  it("keeps entity-scoped comment tools available to plain authenticated users", () => {
    const userNames = getToolNames([], SystemRole.USER);

    expect(userNames).toContain("list_comments");
    expect(userNames).toContain("create_comment");
    expect(userNames).toContain("resolve_comment");
  });

  it("keeps planning read tools behind the explicit planning permission", () => {
    const userWithoutPlanning = getToolNames([], SystemRole.USER);
    const userWithPlanning = getToolNames([PermissionKey.VIEW_PLANNING], SystemRole.USER);

    expect(userWithoutPlanning).not.toContain("list_allocations");
    expect(userWithoutPlanning).not.toContain("list_demands");
    expect(userWithoutPlanning).not.toContain("list_blueprints");
    expect(userWithoutPlanning).not.toContain("get_blueprint");
    expect(userWithoutPlanning).not.toContain("list_clients");
    expect(userWithoutPlanning).not.toContain("list_roles");
    expect(userWithoutPlanning).not.toContain("list_management_levels");
    expect(userWithoutPlanning).not.toContain("list_utilization_categories");
    expect(userWithoutPlanning).not.toContain("check_resource_availability");
    expect(userWithoutPlanning).not.toContain("find_capacity");
    expect(userWithoutPlanning).not.toContain("get_staffing_suggestions");
    expect(userWithoutPlanning).not.toContain("find_best_project_resource");
    expect(userWithPlanning).toContain("list_allocations");
    expect(userWithPlanning).toContain("list_demands");
    expect(userWithPlanning).toContain("list_blueprints");
    expect(userWithPlanning).toContain("get_blueprint");
    expect(userWithPlanning).toContain("list_clients");
    expect(userWithPlanning).toContain("list_roles");
    expect(userWithPlanning).toContain("list_management_levels");
    expect(userWithPlanning).toContain("list_utilization_categories");
    expect(userWithPlanning).toContain("check_resource_availability");
    expect(userWithPlanning).toContain("find_capacity");
    expect(userWithPlanning).not.toContain("get_staffing_suggestions");
    expect(userWithPlanning).not.toContain("find_best_project_resource");
  });

  it("keeps cost-aware staffing assistant tools behind cost and advanced gates", () => {
    const planningOnly = getToolNames([PermissionKey.VIEW_PLANNING], SystemRole.USER);
    const planningAndCosts = getToolNames([
      PermissionKey.VIEW_PLANNING,
      PermissionKey.VIEW_COSTS,
    ], SystemRole.USER);
    const planningCostsAndAdvanced = getToolNames([
      PermissionKey.VIEW_PLANNING,
      PermissionKey.VIEW_COSTS,
      PermissionKey.USE_ASSISTANT_ADVANCED_TOOLS,
    ], SystemRole.USER);

    expect(planningOnly).not.toContain("get_staffing_suggestions");
    expect(planningOnly).not.toContain("find_best_project_resource");
    expect(planningAndCosts).toContain("get_staffing_suggestions");
    expect(planningAndCosts).not.toContain("find_best_project_resource");
    expect(planningCostsAndAdvanced).toContain("get_staffing_suggestions");
    expect(planningCostsAndAdvanced).toContain("find_best_project_resource");
  });

  it("keeps controller-only project and dashboard reads hidden from plain users", () => {
    const controllerNames = getToolNames([
      PermissionKey.VIEW_COSTS,
      PermissionKey.USE_ASSISTANT_ADVANCED_TOOLS,
      PermissionKey.VIEW_PLANNING,
    ], SystemRole.CONTROLLER);
    const userNames = getToolNames([
      PermissionKey.VIEW_COSTS,
      PermissionKey.USE_ASSISTANT_ADVANCED_TOOLS,
      PermissionKey.VIEW_PLANNING,
    ], SystemRole.USER);

    expect(controllerNames).toContain("search_projects");
    expect(controllerNames).toContain("get_project");
    expect(controllerNames).toContain("get_statistics");
    expect(controllerNames).toContain("get_dashboard_detail");
    expect(controllerNames).toContain("get_skill_gaps");
    expect(controllerNames).toContain("get_project_health");
    expect(controllerNames).toContain("get_budget_forecast");
    expect(controllerNames).toContain("get_budget_status");
    expect(controllerNames).toContain("get_shoring_ratio");
    expect(userNames).not.toContain("search_projects");
    expect(userNames).not.toContain("get_project");
    expect(userNames).not.toContain("get_statistics");
    expect(userNames).not.toContain("get_dashboard_detail");
    expect(userNames).not.toContain("get_skill_gaps");
    expect(userNames).not.toContain("get_project_health");
    expect(userNames).not.toContain("get_budget_forecast");
    expect(userNames).not.toContain("get_budget_status");
    expect(userNames).not.toContain("get_shoring_ratio");
  });

  it("keeps legacy controller-only analysis and report tools hidden from plain users", () => {
    const controllerNames = getToolNames([
      PermissionKey.VIEW_COSTS,
      PermissionKey.VIEW_PLANNING,
    ], SystemRole.CONTROLLER);
    const userNames = getToolNames([
      PermissionKey.VIEW_COSTS,
      PermissionKey.VIEW_PLANNING,
    ], SystemRole.USER);

    expect(controllerNames).toContain("detect_anomalies");
    expect(controllerNames).toContain("get_insights_summary");
    expect(controllerNames).toContain("run_report");
    expect(controllerNames).toContain("lookup_rate");
    expect(controllerNames).toContain("simulate_scenario");
    expect(controllerNames).toContain("generate_project_narrative");
    expect(controllerNames).toContain("list_rate_cards");
    expect(controllerNames).toContain("resolve_rate");
    expect(userNames).not.toContain("detect_anomalies");
    expect(userNames).not.toContain("get_insights_summary");
    expect(userNames).not.toContain("run_report");
    expect(userNames).not.toContain("lookup_rate");
    expect(userNames).not.toContain("simulate_scenario");
    expect(userNames).not.toContain("generate_project_narrative");
    expect(userNames).not.toContain("list_rate_cards");
    expect(userNames).not.toContain("resolve_rate");
  });

  it("keeps cost-sensitive legacy rate tools hidden without viewCosts", () => {
    const controllerWithoutCosts = getToolNames([], SystemRole.CONTROLLER);
    const controllerWithCosts = getToolNames([PermissionKey.VIEW_COSTS], SystemRole.CONTROLLER);

    expect(controllerWithoutCosts).not.toContain("list_rate_cards");
    expect(controllerWithoutCosts).not.toContain("resolve_rate");
    expect(controllerWithCosts).toContain("list_rate_cards");
    expect(controllerWithCosts).toContain("resolve_rate");
  });
});