// Normalizes tool availability metadata from plugin manifests.
import { isRecord } from "@openclaw/normalization-core/record-coerce";
import { normalizeOptionalString } from "@openclaw/normalization-core/string-coerce";
import type { OpenClawConfig } from "../config/types.openclaw.js";
import { coerceSecretRef, type SecretRef } from "../config/types.secrets.js";
import { resolveDefaultSecretProviderAlias } from "../secrets/ref-contract.js";
import type { PluginManifestRecord } from "./manifest-registry.js";
import type {
  PluginManifestCapabilityProviderAuthSignal,
  PluginManifestCapabilityProviderConfigSignal,
} from "./manifest.js";

type ToolMetadata = NonNullable<PluginManifestRecord["toolMetadata"]>[string];
export type ManifestConfigAvailabilitySignal = PluginManifestCapabilityProviderConfigSignal;
export type ManifestAuthAvailabilitySignal = PluginManifestCapabilityProviderAuthSignal;

function readPath(root: unknown, path: string | undefined): unknown {
  if (!path?.trim()) {
    return root;
  }
  let current = root;
  for (const segment of path.split(".")) {
    const key = segment.trim();
    if (!key) {
      return undefined;
    }
    if (!isRecord(current) || !(key in current)) {
      return undefined;
    }
    current = current[key];
  }
  return current;
}

function readStringAtPath(root: unknown, path: string): string | undefined {
  return normalizeOptionalString(readPath(root, path));
}

function readEffectiveConfigs(params: {
  config?: OpenClawConfig;
  rootPath: string;
  overlayPath?: string;
  overlayMapPath?: string;
}): Array<Record<string, unknown>> {
  const root = readPath(params.config, params.rootPath);
  if (!isRecord(root)) {
    return [];
  }
  const overlay = readPath(root, params.overlayPath);
  const baseConfig = isRecord(overlay) ? { ...root, ...overlay } : root;
  if (params.overlayMapPath?.trim()) {
    const overlayMap = readPath(baseConfig, params.overlayMapPath);
    if (!isRecord(overlayMap)) {
      return [];
    }
    return Object.entries(overlayMap)
      .toSorted(([left], [right]) => left.localeCompare(right))
      .flatMap(([, mapOverlay]) =>
        isRecord(mapOverlay) ? [{ ...baseConfig, ...mapOverlay }] : [],
      );
  }
  return [baseConfig];
}

function hasConfiguredSecretRefInConfigPath(params: {
  config?: OpenClawConfig;
  env: NodeJS.ProcessEnv;
  ref: SecretRef;
}): boolean {
  const providerConfig = params.config?.secrets?.providers?.[params.ref.provider];
  if (params.ref.source !== "env") {
    return Boolean(providerConfig && providerConfig.source === params.ref.source);
  }
  if (!providerConfig) {
    return params.ref.provider === resolveDefaultSecretProviderAlias(params.config ?? {}, "env");
  }
  if (providerConfig.source !== "env") {
    return false;
  }
  const allowlist = providerConfig.allowlist;
  return !allowlist || allowlist.includes(params.ref.id);
}

function hasConfiguredValue(params: {
  config?: OpenClawConfig;
  env: NodeJS.ProcessEnv;
  value: unknown;
}): boolean {
  const secretRef = coerceSecretRef(params.value, params.config?.secrets?.defaults);
  if (secretRef) {
    return (
      hasConfiguredSecretRefInConfigPath({
        config: params.config,
        env: params.env,
        ref: secretRef,
      }) &&
      (secretRef.source !== "env" || Boolean(params.env[secretRef.id]?.trim()))
    );
  }
  if (typeof params.value === "string") {
    return params.value.trim().length > 0;
  }
  if (Array.isArray(params.value)) {
    return params.value.length > 0;
  }
  if (isRecord(params.value)) {
    return Object.keys(params.value).length > 0;
  }
  return params.value !== undefined && params.value !== null;
}

export function manifestConfigSignalPasses(params: {
  config?: OpenClawConfig;
  env: NodeJS.ProcessEnv;
  signal: ManifestConfigAvailabilitySignal;
}): boolean {
  const effectiveConfigs = readEffectiveConfigs({
    config: params.config,
    rootPath: params.signal.rootPath,
    overlayPath: params.signal.overlayPath,
    overlayMapPath: params.signal.overlayMapPath,
  });
  if (effectiveConfigs.length === 0) {
    return false;
  }
  return effectiveConfigs.some((effectiveConfig) =>
    manifestEffectiveConfigSignalPasses({
      config: params.config,
      env: params.env,
      effectiveConfig,
      signal: params.signal,
    }),
  );
}

function manifestEffectiveConfigSignalPasses(params: {
  config?: OpenClawConfig;
  env: NodeJS.ProcessEnv;
  effectiveConfig: Record<string, unknown>;
  signal: ManifestConfigAvailabilitySignal;
}): boolean {
  const modeSignal = params.signal.mode;
  if (modeSignal) {
    const modePath = modeSignal.path?.trim() || "mode";
    const mode = readStringAtPath(params.effectiveConfig, modePath) ?? modeSignal.default;
    if (!mode) {
      return false;
    }
    if (modeSignal.allowed?.length && !modeSignal.allowed.includes(mode)) {
      return false;
    }
    if (modeSignal.disallowed?.includes(mode)) {
      return false;
    }
  }
  for (const requiredPath of params.signal.required ?? []) {
    if (
      !hasConfiguredValue({
        config: params.config,
        env: params.env,
        value: readPath(params.effectiveConfig, requiredPath),
      })
    ) {
      return false;
    }
  }
  const requiredAny = params.signal.requiredAny ?? [];
  if (
    requiredAny.length > 0 &&
    !requiredAny.some((path) =>
      hasConfiguredValue({
        config: params.config,
        env: params.env,
        value: readPath(params.effectiveConfig, path),
      }),
    )
  ) {
    return false;
  }
  return true;
}

function normalizeBaseUrlForManifestGuard(value: string): string {
  return value.trim().replace(/\/+$/, "");
}

export function manifestProviderBaseUrlGuardPasses(params: {
  config?: OpenClawConfig;
  guard: ManifestAuthAvailabilitySignal["providerBaseUrl"];
}): boolean {
  const guard = params.guard;
  if (!guard) {
    return true;
  }
  const providerConfig = params.config?.models?.providers?.[guard.provider];
  const rawBaseUrl =
    typeof providerConfig?.baseUrl === "string" && providerConfig.baseUrl.trim()
      ? providerConfig.baseUrl
      : guard.defaultBaseUrl;
  if (!rawBaseUrl) {
    return false;
  }
  const normalizedBaseUrl = normalizeBaseUrlForManifestGuard(rawBaseUrl);
  return guard.allowedBaseUrls.some(
    (allowedBaseUrl) => normalizeBaseUrlForManifestGuard(allowedBaseUrl) === normalizedBaseUrl,
  );
}

export function manifestPluginSetupProviderEnvVars(
  plugin: PluginManifestRecord,
  providerId: string,
): readonly string[] {
  const direct = plugin.setup?.providers?.find((provider) => provider.id === providerId)?.envVars;
  if (direct && direct.length > 0) {
    return direct;
  }
  return plugin.providerAuthEnvVars?.[providerId] ?? [];
}

export function hasNonEmptyManifestEnvCandidate(
  env: NodeJS.ProcessEnv,
  envVars: readonly string[],
): boolean {
  return envVars.some((envVar) => {
    const key = envVar.trim();
    return key.length > 0 && Boolean(env[key]?.trim());
  });
}

function listToolAuthSignals(metadata: ToolMetadata): ManifestAuthAvailabilitySignal[] {
  if (metadata.authSignals?.length) {
    return metadata.authSignals;
  }
  return [...(metadata.authProviders ?? []), ...(metadata.aliases ?? [])].map((provider) => ({
    provider,
  }));
}

function toolMetadataPasses(params: {
  plugin: PluginManifestRecord;
  metadata: ToolMetadata;
  config?: OpenClawConfig;
  env: NodeJS.ProcessEnv;
  hasAuthForProvider?: (providerId: string) => boolean;
}): boolean {
  const authSignals = listToolAuthSignals(params.metadata);
  if (!params.metadata.configSignals?.length && authSignals.length === 0) {
    return true;
  }
  if (
    params.metadata.configSignals?.some((signal) =>
      manifestConfigSignalPasses({
        config: params.config,
        env: params.env,
        signal,
      }),
    )
  ) {
    return true;
  }
  for (const signal of authSignals) {
    if (
      !manifestProviderBaseUrlGuardPasses({
        config: params.config,
        guard: signal.providerBaseUrl,
      })
    ) {
      continue;
    }
    if (params.hasAuthForProvider?.(signal.provider)) {
      return true;
    }
    if (
      hasNonEmptyManifestEnvCandidate(
        params.env,
        manifestPluginSetupProviderEnvVars(params.plugin, signal.provider),
      )
    ) {
      return true;
    }
  }
  return false;
}

export function hasManifestToolAvailability(params: {
  plugin: PluginManifestRecord;
  toolNames: readonly string[];
  config?: OpenClawConfig;
  env: NodeJS.ProcessEnv;
  hasAuthForProvider?: (providerId: string) => boolean;
}): boolean {
  for (const toolName of params.toolNames) {
    const metadata = params.plugin.toolMetadata?.[toolName];
    if (!metadata) {
      return true;
    }
    if (
      toolMetadataPasses({
        plugin: params.plugin,
        metadata,
        config: params.config,
        env: params.env,
        hasAuthForProvider: params.hasAuthForProvider,
      })
    ) {
      return true;
    }
  }
  return false;
}