import { useAuth, type AuthUser } from "~/context/AuthContext";

export type OperationsRole = "business" | "model" | "admin";
export type OperationsPageKey =
  | "workbench"
  | "usage"
  | "models"
  | "banks"
  | "deployed-models"
  | "monitoring"
  | "monitoring-detail"
  | "reports"
  | "report-summary"
  | "workflows"
  | "knowledge"
  | "rules"
  | "prompts"
  | "settings";

export type OperationsAction =
  | "workflow:create"
  | "workflow:feedback"
  | "workflow:submit-material"
  | "workflow:advance"
  | "workflow:online"
  | "workflow:business-confirm"
  | "monitor:initial-review"
  | "monitor:final-review"
  | "report:edit"
  | "report:export"
  | "report:send"
  | "rules:publish"
  | "rules:rollback"
  | "rules:simulate"
  | "rules:manage"
  | "prompts:manage"
  | "prompts:regression"
  | "settings:manage";

const PAGE_ROLE_VISIBILITY: Record<OperationsPageKey, OperationsRole[]> = {
  workbench: ["business", "model", "admin"],
  usage: ["admin"],
  models: ["business", "model", "admin"],
  banks: ["business", "model", "admin"],
  "deployed-models": ["model", "admin"],
  monitoring: ["business", "model", "admin"],
  "monitoring-detail": ["business", "model", "admin"],
  reports: ["business", "model", "admin"],
  "report-summary": ["business", "model", "admin"],
  workflows: ["business", "model", "admin"],
  knowledge: ["model", "admin"],
  rules: ["model", "admin"],
  prompts: ["model", "admin"],
  settings: ["admin"],
};

const ACTION_ROLE_VISIBILITY: Record<OperationsAction, OperationsRole[]> = {
  "workflow:create": ["business", "admin"],
  "workflow:feedback": ["business", "admin"],
  "workflow:submit-material": ["model", "admin"],
  "workflow:advance": ["model", "admin"],
  "workflow:online": ["model", "admin"],
  "workflow:business-confirm": ["business", "admin"],
  "monitor:initial-review": ["model", "admin"],
  "monitor:final-review": ["business", "admin"],
  "report:edit": ["model", "admin"],
  "report:export": ["business", "model", "admin"],
  "report:send": ["model", "admin"],
  "rules:publish": ["admin"],
  "rules:rollback": ["admin"],
  "rules:simulate": ["admin"],
  "rules:manage": ["admin"],
  "prompts:manage": ["model", "admin"],
  "prompts:regression": ["model", "admin"],
  "settings:manage": ["admin"],
};

export const OPERATIONS_PAGE_PERMISSIONS: Record<OperationsPageKey, string> = {
  workbench: "operations:workbench:view",
  usage: "operations:usage:view",
  models: "operations:model-overview:view",
  banks: "operations:bank-overview:view",
  "deployed-models": "operations:deployed-models:view",
  monitoring: "operations:monitoring-overview:view",
  "monitoring-detail": "operations:monitoring-detail:view",
  reports: "operations:report:view",
  "report-summary": "operations:report-summary:view",
  workflows: "operations:workflow:view",
  knowledge: "operations:knowledge:view",
  rules: "operations:rules:view",
  prompts: "operations:prompt:view",
  settings: "operations:settings:view",
};

export const OPERATIONS_ACTION_PERMISSIONS: Record<OperationsAction, string> = {
  "workflow:create": "operations:workflow:create",
  "workflow:feedback": "operations:workflow:feedback",
  "workflow:submit-material": "operations:workflow:submit-material",
  "workflow:advance": "operations:workflow:advance",
  "workflow:online": "operations:workflow:online",
  "workflow:business-confirm": "operations:workflow:confirm",
  "monitor:initial-review": "operations:monitoring-detail:model-review",
  "monitor:final-review": "operations:monitoring-detail:business-review",
  "report:edit": "operations:report:edit",
  "report:export": "operations:report:export",
  "report:send": "operations:report:send",
  "rules:publish": "operations:rules:publish",
  "rules:rollback": "operations:rules:rollback",
  "rules:simulate": "operations:rules:simulate",
  "rules:manage": "operations:rules:publish",
  "prompts:manage": "operations:prompt:edit",
  "prompts:regression": "operations:prompt:regression",
  "settings:manage": "operations:settings:view",
};

export function resolveOperationsRole(user: AuthUser | null): OperationsRole {
  if (user?.is_system_admin || user?.role_code === "admin") return "admin";
  const code = user?.role_code?.toLowerCase() ?? "";
  if (["business", "business_team", "biz"].includes(code)) return "business";
  return "model";
}

export function useOperationsRole(): OperationsRole {
  return resolveOperationsRole(useAuth().user);
}

export function isOperationsPageVisibleForRole(role: OperationsRole, page: OperationsPageKey): boolean {
  return PAGE_ROLE_VISIBILITY[page].includes(role);
}

export function isOperationsActionVisibleForRole(role: OperationsRole, action: OperationsAction): boolean {
  return ACTION_ROLE_VISIBILITY[action].includes(role);
}

export function useOperationsPermission(permissionCode: string): boolean {
  const { user } = useAuth();
  return Boolean(user?.is_system_admin || user?.permissions.includes(permissionCode));
}

export function useCanOperationsPage(page: OperationsPageKey): boolean {
  return useOperationsPermission(OPERATIONS_PAGE_PERMISSIONS[page]);
}

export function useCanOperationsAction(action: OperationsAction): boolean {
  return useOperationsPermission(OPERATIONS_ACTION_PERMISSIONS[action]);
}

export function operationsPagePermission(page: OperationsPageKey): string {
  return OPERATIONS_PAGE_PERMISSIONS[page];
}

export function operationsPageFromPath(pathname: string): OperationsPageKey {
  const normalized = pathname.replace(/^\/operations\/?/, "");
  if (normalized.startsWith("monitoring/")) return "monitoring-detail";
  const path = normalized.split("/")[0] ?? "";
  if (!path) return "workbench";
  if (path === "monitoring") return "monitoring";
  if (path in PAGE_ROLE_VISIBILITY) return path as OperationsPageKey;
  return "workbench";
}