import { apiFetch, apiPath, type ApiSettings } from "@govoplan/core-webui";

export type GovernedConnectorSpecification = {
  provider: string;
  protocol: string;
  capabilities: string[];
  input_schema: Record<string, unknown>;
  output_schema: Record<string, unknown>;
  mapping: {
    version: string;
    rules: Array<{
      source: string;
      target: string;
      required?: boolean;
      default?: unknown;
    }>;
  };
  validation_rules: Array<{
    kind: "required" | "one_of" | "unique";
    field: string;
    values?: unknown[];
    severity: "warning" | "error";
    code: string;
    message: string;
  }>;
  dry_run: {
    supported: boolean;
    simulation_supported: boolean;
    sample_rows: Array<Record<string, unknown>>;
    max_items: number;
    redacted_fields: string[];
  };
  audit: {
    event_prefix: string;
    expected_events: string[];
    evidence_fields: string[];
  };
  privacy_classification: "public" | "internal" | "confidential" | "restricted";
  retention_class: string;
  operational_limits: Record<string, unknown>;
  retry_policy: Record<string, unknown>;
};

export type ConnectorDefinition = {
  id: string;
  definition_key: string;
  name: string;
  description?: string | null;
  status: string;
  current_revision: number;
  source_package?: string | null;
  local_definition: boolean;
  definition_hash: string;
  specification: GovernedConnectorSpecification;
  updated_at: string;
};

export type ConnectorConfiguration = {
  id: string;
  definition_id: string;
  definition_key: string;
  definition_name: string;
  name: string;
  status: "draft" | "active" | "disabled";
  endpoint_url?: string | null;
  credential_ref?: string | null;
  base_definition_revision: number;
  latest_definition_revision: number;
  update_available: boolean;
  local_overrides: Record<string, unknown>;
  protected_paths: string[];
  effective_configuration: GovernedConnectorSpecification;
  effective_hash: string;
  resource_revision: number;
  ambiguity_policy: "manual_review" | "quarantine" | "reject";
  updated_at: string;
};

export type ConnectorRun = {
  id: string;
  configuration_id: string;
  mode: "dry_run" | "simulation";
  idempotency_key: string;
  status: string;
  review_state: string;
  definition_revision: number;
  configuration_revision: number;
  configuration_hash: string;
  input_hash: string;
  summary: Record<string, number | boolean>;
  effects: Array<Record<string, unknown>>;
  diagnostics: Array<Record<string, unknown>>;
  provenance: Record<string, unknown>;
  reviewed_by?: string | null;
  reviewed_at?: string | null;
  review_reason?: string | null;
  created_at: string;
};

export type ConnectorConfigurationDraft = {
  name: string;
  status: ConnectorConfiguration["status"];
  endpoint_url: string;
  credential_ref: string;
  local_overrides: string;
  ambiguity_policy: ConnectorConfiguration["ambiguity_policy"];
};

const ROOT = "/api/v1/connectors/governed";

export async function listConnectorDefinitions(
  settings: ApiSettings
): Promise<ConnectorDefinition[]> {
  const response = await apiFetch<{ items: ConnectorDefinition[] }>(
    settings,
    `${ROOT}/definitions`
  );
  return response.items;
}

export async function upsertConnectorDefinition(
  settings: ApiSettings,
  payload: Record<string, unknown>
): Promise<ConnectorDefinition> {
  return apiFetch(settings, `${ROOT}/definitions`, {
    method: "POST",
    body: JSON.stringify(payload)
  });
}

export async function listConnectorConfigurations(
  settings: ApiSettings
): Promise<ConnectorConfiguration[]> {
  const response = await apiFetch<{ items: ConnectorConfiguration[] }>(
    settings,
    `${ROOT}/configurations`
  );
  return response.items;
}

export function createConnectorConfiguration(
  settings: ApiSettings,
  payload: Record<string, unknown>
): Promise<ConnectorConfiguration> {
  return apiFetch(settings, `${ROOT}/configurations`, {
    method: "POST",
    body: JSON.stringify(payload)
  });
}

export function updateConnectorConfiguration(
  settings: ApiSettings,
  configurationId: string,
  payload: Record<string, unknown>
): Promise<ConnectorConfiguration> {
  return apiFetch(
    settings,
    `${ROOT}/configurations/${encodeURIComponent(configurationId)}`,
    { method: "PUT", body: JSON.stringify(payload) }
  );
}

export async function listConnectorRuns(
  settings: ApiSettings,
  configurationId?: string
): Promise<ConnectorRun[]> {
  const response = await apiFetch<{ items: ConnectorRun[] }>(
    settings,
    apiPath(`${ROOT}/runs`, {
      configuration_id: configurationId || undefined,
      limit: 100
    })
  );
  return response.items;
}

export function executeConnectorRun(
  settings: ApiSettings,
  configurationId: string,
  mode: "dry-runs" | "simulations",
  payload: Record<string, unknown>
): Promise<ConnectorRun> {
  return apiFetch(
    settings,
    `${ROOT}/configurations/${encodeURIComponent(configurationId)}/${mode}`,
    { method: "POST", body: JSON.stringify(payload) }
  );
}

export function reviewConnectorRun(
  settings: ApiSettings,
  runId: string,
  decision: "approved" | "rejected",
  reason: string
): Promise<ConnectorRun> {
  return apiFetch(
    settings,
    `${ROOT}/runs/${encodeURIComponent(runId)}/review`,
    {
      method: "POST",
      body: JSON.stringify({ decision, reason })
    }
  );
}