import { normalizeChatChannelId } from "../channels/ids.js";
import type { OpenClawConfig } from "../config/config.js";
import {
  normalizeOptionalLowercaseString,
  normalizeOptionalString,
} from "../shared/string-coerce.js";
import { defaultSlotIdForKey } from "./slots.js";

export type NormalizedPluginsConfig = {
  enabled: boolean;
  allow: string[];
  deny: string[];
  loadPaths: string[];
  slots: {
    memory?: string | null;
  };
  entries: Record<
    string,
    {
      enabled?: boolean;
      hooks?: {
        allowPromptInjection?: boolean;
      };
      subagent?: {
        allowModelOverride?: boolean;
        allowedModels?: string[];
        hasAllowedModelsConfig?: boolean;
      };
      config?: unknown;
    }
  >;
};

export type NormalizePluginId = (id: string) => string;

export const identityNormalizePluginId: NormalizePluginId = (id) => id.trim();

function normalizeList(value: unknown, normalizePluginId: NormalizePluginId): string[] {
  if (!Array.isArray(value)) {
    return [];
  }
  return value
    .map((entry) => (typeof entry === "string" ? normalizePluginId(entry) : ""))
    .filter(Boolean);
}

function normalizeSlotValue(value: unknown): string | null | undefined {
  const trimmed = normalizeOptionalString(value);
  if (!trimmed) {
    return undefined;
  }
  if (normalizeOptionalLowercaseString(trimmed) === "none") {
    return null;
  }
  return trimmed;
}

function normalizePluginEntries(
  entries: unknown,
  normalizePluginId: NormalizePluginId,
): NormalizedPluginsConfig["entries"] {
  if (!entries || typeof entries !== "object" || Array.isArray(entries)) {
    return {};
  }
  const normalized: NormalizedPluginsConfig["entries"] = {};
  for (const [key, value] of Object.entries(entries)) {
    const normalizedKey = normalizePluginId(key);
    if (!normalizedKey) {
      continue;
    }
    if (!value || typeof value !== "object" || Array.isArray(value)) {
      normalized[normalizedKey] = {};
      continue;
    }
    const entry = value as Record<string, unknown>;
    const hooksRaw = entry.hooks;
    const hooks =
      hooksRaw && typeof hooksRaw === "object" && !Array.isArray(hooksRaw)
        ? {
            allowPromptInjection: (hooksRaw as { allowPromptInjection?: unknown })
              .allowPromptInjection,
          }
        : undefined;
    const normalizedHooks =
      hooks && typeof hooks.allowPromptInjection === "boolean"
        ? {
            allowPromptInjection: hooks.allowPromptInjection,
          }
        : undefined;
    const subagentRaw = entry.subagent;
    const subagent =
      subagentRaw && typeof subagentRaw === "object" && !Array.isArray(subagentRaw)
        ? {
            allowModelOverride: (subagentRaw as { allowModelOverride?: unknown })
              .allowModelOverride,
            hasAllowedModelsConfig: Array.isArray(
              (subagentRaw as { allowedModels?: unknown }).allowedModels,
            ),
            allowedModels: Array.isArray((subagentRaw as { allowedModels?: unknown }).allowedModels)
              ? ((subagentRaw as { allowedModels?: unknown }).allowedModels as unknown[])
                  .map((model) => normalizeOptionalString(model))
                  .filter((model): model is string => Boolean(model))
              : undefined,
          }
        : undefined;
    const normalizedSubagent =
      subagent &&
      (typeof subagent.allowModelOverride === "boolean" ||
        subagent.hasAllowedModelsConfig ||
        (Array.isArray(subagent.allowedModels) && subagent.allowedModels.length > 0))
        ? {
            ...(typeof subagent.allowModelOverride === "boolean"
              ? { allowModelOverride: subagent.allowModelOverride }
              : {}),
            ...(subagent.hasAllowedModelsConfig ? { hasAllowedModelsConfig: true } : {}),
            ...(Array.isArray(subagent.allowedModels) && subagent.allowedModels.length > 0
              ? { allowedModels: subagent.allowedModels }
              : {}),
          }
        : undefined;
    normalized[normalizedKey] = {
      ...normalized[normalizedKey],
      enabled:
        typeof entry.enabled === "boolean" ? entry.enabled : normalized[normalizedKey]?.enabled,
      hooks: normalizedHooks ?? normalized[normalizedKey]?.hooks,
      subagent: normalizedSubagent ?? normalized[normalizedKey]?.subagent,
      config: "config" in entry ? entry.config : normalized[normalizedKey]?.config,
    };
  }
  return normalized;
}

export function normalizePluginsConfigWithResolver(
  config?: OpenClawConfig["plugins"],
  normalizePluginId: NormalizePluginId = identityNormalizePluginId,
): NormalizedPluginsConfig {
  const memorySlot = normalizeSlotValue(config?.slots?.memory);
  return {
    enabled: config?.enabled !== false,
    allow: normalizeList(config?.allow, normalizePluginId),
    deny: normalizeList(config?.deny, normalizePluginId),
    loadPaths: normalizeList(config?.load?.paths, identityNormalizePluginId),
    slots: {
      memory: memorySlot === undefined ? defaultSlotIdForKey("memory") : memorySlot,
    },
    entries: normalizePluginEntries(config?.entries, normalizePluginId),
  };
}

export function hasExplicitPluginConfig(plugins?: OpenClawConfig["plugins"]): boolean {
  if (!plugins) {
    return false;
  }
  if (typeof plugins.enabled === "boolean") {
    return true;
  }
  if (Array.isArray(plugins.allow) && plugins.allow.length > 0) {
    return true;
  }
  if (Array.isArray(plugins.deny) && plugins.deny.length > 0) {
    return true;
  }
  if (plugins.load?.paths && Array.isArray(plugins.load.paths) && plugins.load.paths.length > 0) {
    return true;
  }
  if (plugins.slots && Object.keys(plugins.slots).length > 0) {
    return true;
  }
  if (plugins.entries && Object.keys(plugins.entries).length > 0) {
    return true;
  }
  return false;
}

export function isBundledChannelEnabledByChannelConfig(
  cfg: OpenClawConfig | undefined,
  pluginId: string,
): boolean {
  if (!cfg) {
    return false;
  }
  const channelId = normalizeChatChannelId(pluginId);
  if (!channelId) {
    return false;
  }
  const channels = cfg.channels as Record<string, unknown> | undefined;
  const entry = channels?.[channelId];
  if (!entry || typeof entry !== "object" || Array.isArray(entry)) {
    return false;
  }
  return (entry as Record<string, unknown>).enabled === true;
}