import { VERSION } from "../version.js";
import { ClawdisSchema } from "./config.js";

export type ConfigUiHint = {
  label?: string;
  help?: string;
  group?: string;
  order?: number;
  advanced?: boolean;
  sensitive?: boolean;
  placeholder?: string;
  itemTemplate?: unknown;
};

export type ConfigUiHints = Record<string, ConfigUiHint>;

export type ConfigSchema = ReturnType<typeof ClawdisSchema.toJSONSchema>;

export type ConfigSchemaResponse = {
  schema: ConfigSchema;
  uiHints: ConfigUiHints;
  version: string;
  generatedAt: string;
};

const GROUP_LABELS: Record<string, string> = {
  identity: "Identity",
  wizard: "Wizard",
  logging: "Logging",
  gateway: "Gateway",
  agent: "Agent",
  models: "Models",
  routing: "Routing",
  messages: "Messages",
  session: "Session",
  cron: "Cron",
  hooks: "Hooks",
  ui: "UI",
  browser: "Browser",
  talk: "Talk",
  telegram: "Telegram",
  discord: "Discord",
  signal: "Signal",
  imessage: "iMessage",
  whatsapp: "WhatsApp",
  skills: "Skills",
  discovery: "Discovery",
  presence: "Presence",
  voicewake: "Voice Wake",
};

const GROUP_ORDER: Record<string, number> = {
  identity: 10,
  wizard: 20,
  gateway: 30,
  agent: 40,
  models: 50,
  routing: 60,
  messages: 70,
  session: 80,
  cron: 90,
  hooks: 100,
  ui: 110,
  browser: 120,
  talk: 130,
  telegram: 140,
  discord: 150,
  signal: 160,
  imessage: 170,
  whatsapp: 180,
  skills: 190,
  discovery: 200,
  presence: 210,
  voicewake: 220,
  logging: 900,
};

const FIELD_LABELS: Record<string, string> = {
  "gateway.remote.url": "Remote Gateway URL",
  "gateway.remote.token": "Remote Gateway Token",
  "gateway.remote.password": "Remote Gateway Password",
  "gateway.auth.token": "Gateway Token",
  "gateway.auth.password": "Gateway Password",
  "gateway.controlUi.basePath": "Control UI Base Path",
  "agent.workspace": "Workspace",
  "agent.model": "Default Model",
  "ui.seamColor": "Accent Color",
  "browser.controlUrl": "Browser Control URL",
  "talk.apiKey": "Talk API Key",
  "telegram.botToken": "Telegram Bot Token",
  "discord.token": "Discord Bot Token",
  "signal.account": "Signal Account",
  "imessage.cliPath": "iMessage CLI Path",
};

const FIELD_HELP: Record<string, string> = {
  "gateway.remote.url": "Remote Gateway WebSocket URL (ws:// or wss://).",
  "gateway.auth.token":
    "Required for multi-machine access or non-loopback binds.",
  "gateway.auth.password": "Required for Tailscale funnel.",
  "gateway.controlUi.basePath":
    "Optional URL prefix where the Control UI is served (e.g. /clawdis).",
};

const FIELD_PLACEHOLDERS: Record<string, string> = {
  "gateway.remote.url": "ws://host:18789",
  "gateway.controlUi.basePath": "/clawdis",
};

const SENSITIVE_PATTERNS = [/token/i, /password/i, /secret/i, /api.?key/i];

function isSensitivePath(path: string): boolean {
  return SENSITIVE_PATTERNS.some((pattern) => pattern.test(path));
}

function buildBaseHints(): ConfigUiHints {
  const hints: ConfigUiHints = {};
  for (const [group, label] of Object.entries(GROUP_LABELS)) {
    hints[group] = {
      label,
      group: label,
      order: GROUP_ORDER[group],
    };
  }
  for (const [path, label] of Object.entries(FIELD_LABELS)) {
    hints[path] = { ...(hints[path] ?? {}), label };
  }
  for (const [path, help] of Object.entries(FIELD_HELP)) {
    hints[path] = { ...(hints[path] ?? {}), help };
  }
  for (const [path, placeholder] of Object.entries(FIELD_PLACEHOLDERS)) {
    hints[path] = { ...(hints[path] ?? {}), placeholder };
  }
  return hints;
}

function applySensitiveHints(hints: ConfigUiHints): ConfigUiHints {
  const next = { ...hints };
  for (const key of Object.keys(next)) {
    if (isSensitivePath(key)) {
      next[key] = { ...next[key], sensitive: true };
    }
  }
  return next;
}

let cached: ConfigSchemaResponse | null = null;

export function buildConfigSchema(): ConfigSchemaResponse {
  if (cached) return cached;
  const schema = ClawdisSchema.toJSONSchema({
    target: "draft-07",
    unrepresentable: "any",
  });
  schema.title = "ClawdisConfig";
  const hints = applySensitiveHints(buildBaseHints());
  const next = {
    schema,
    uiHints: hints,
    version: VERSION,
    generatedAt: new Date().toISOString(),
  };
  cached = next;
  return next;
}