import { authClient } from './auth';

export interface WorkflowDefinitionSummary {
  id: number;
  key: string;
  name: string;
  description: string;
  status: string;
  latest_published_version: number;
  product_domain?: string;
}

export interface WorkflowVersionSummary {
  id: number;
  workflow_id: number;
  version: number;
  status: string;
  definition_hash: string;
}

export interface ValidationIssue {
  code: string;
  message: string;
  field?: string;
}

async function adminFetch(path: string, init?: RequestInit): Promise<Response> {
  const token = authClient.getSessionToken();
  return fetch(path, {
    ...init,
    headers: {
      ...(init?.headers ?? {}),
      ...(token ? { Authorization: `Bearer ${token}` } : {}),
    },
  });
}

export async function listAdminWorkflows(): Promise<WorkflowDefinitionSummary[]> {
  const resp = await adminFetch('/api/v1/admin/workflows');
  if (!resp.ok) throw new Error('获取工作流列表失败');
  const data = await resp.json();
  return data.workflows ?? [];
}

export async function getAdminWorkflow(id: number): Promise<{
  definition: WorkflowDefinitionSummary;
  versions: WorkflowVersionSummary[];
}> {
  const resp = await adminFetch(`/api/v1/admin/workflows/${id}`);
  if (!resp.ok) throw new Error('获取工作流详情失败');
  return resp.json();
}

export async function validateWorkflowVersion(workflowId: number, version: number): Promise<{
  valid: boolean;
  issues: ValidationIssue[];
}> {
  const resp = await adminFetch(`/api/v1/admin/workflows/${workflowId}/versions/${version}/validate`, {
    method: 'POST',
  });
  if (!resp.ok) throw new Error('校验失败');
  return resp.json();
}

export async function publishWorkflowVersion(workflowId: number, version: number): Promise<void> {
  const resp = await adminFetch(`/api/v1/admin/workflows/${workflowId}/versions/${version}/publish`, {
    method: 'POST',
  });
  if (!resp.ok) {
    const txt = await resp.text();
    throw new Error(txt || '发布失败');
  }
}

export async function listAdminTemplates(): Promise<
  Array<{ id: number; asset_key: string; name: string; status: string }>
> {
  const resp = await adminFetch('/api/v1/admin/templates');
  if (!resp.ok) throw new Error('获取模板列表失败');
  const data = await resp.json();
  return data.templates ?? [];
}