import { normalizeProviderId } from "../agents/provider-id.js";
import { hasExplicitPluginConfig } from "./config-state.js";
import { normalizePluginsConfig, resolveEffectiveEnableState } from "./config-state.js";
import type { PluginLoadOptions } from "./loader.js";
import { loadPluginManifestRegistry } from "./manifest-registry.js";

export function withBundledProviderVitestCompat(params: {
  config: PluginLoadOptions["config"];
  pluginIds: readonly string[];
  env?: PluginLoadOptions["env"];
}): PluginLoadOptions["config"] {
  const env = params.env ?? process.env;
  if (
    !env.VITEST ||
    hasExplicitPluginConfig(params.config?.plugins) ||
    params.pluginIds.length === 0
  ) {
    return params.config;
  }

  return {
    ...params.config,
    plugins: {
      ...params.config?.plugins,
      enabled: true,
      allow: [...params.pluginIds],
      slots: {
        ...params.config?.plugins?.slots,
        memory: "none",
      },
    },
  };
}

export function resolveBundledProviderCompatPluginIds(params: {
  config?: PluginLoadOptions["config"];
  workspaceDir?: string;
  env?: PluginLoadOptions["env"];
  onlyPluginIds?: string[];
}): string[] {
  const onlyPluginIdSet = params.onlyPluginIds ? new Set(params.onlyPluginIds) : null;
  const registry = loadPluginManifestRegistry({
    config: params.config,
    workspaceDir: params.workspaceDir,
    env: params.env,
  });
  return registry.plugins
    .filter(
      (plugin) =>
        plugin.origin === "bundled" &&
        plugin.providers.length > 0 &&
        (!onlyPluginIdSet || onlyPluginIdSet.has(plugin.id)),
    )
    .map((plugin) => plugin.id)
    .toSorted((left, right) => left.localeCompare(right));
}

export const __testing = {
  resolveBundledProviderCompatPluginIds,
  withBundledProviderVitestCompat,
} as const;

export function resolveOwningPluginIdsForProvider(params: {
  provider: string;
  config?: PluginLoadOptions["config"];
  workspaceDir?: string;
  env?: PluginLoadOptions["env"];
}): string[] | undefined {
  const normalizedProvider = normalizeProviderId(params.provider);
  if (!normalizedProvider) {
    return undefined;
  }

  const registry = loadPluginManifestRegistry({
    config: params.config,
    workspaceDir: params.workspaceDir,
    env: params.env,
  });
  const pluginIds = registry.plugins
    .filter((plugin) =>
      plugin.providers.some((providerId) => normalizeProviderId(providerId) === normalizedProvider),
    )
    .map((plugin) => plugin.id);

  return pluginIds.length > 0 ? pluginIds : undefined;
}

export function resolveNonBundledProviderPluginIds(params: {
  config?: PluginLoadOptions["config"];
  workspaceDir?: string;
  env?: PluginLoadOptions["env"];
}): string[] {
  const registry = loadPluginManifestRegistry({
    config: params.config,
    workspaceDir: params.workspaceDir,
    env: params.env,
  });
  const normalizedConfig = normalizePluginsConfig(params.config?.plugins);
  return registry.plugins
    .filter(
      (plugin) =>
        plugin.origin !== "bundled" &&
        plugin.providers.length > 0 &&
        resolveEffectiveEnableState({
          id: plugin.id,
          origin: plugin.origin,
          config: normalizedConfig,
          rootConfig: params.config,
        }).enabled,
    )
    .map((plugin) => plugin.id)
    .toSorted((left, right) => left.localeCompare(right));
}