import {z} from 'zod'

export type WorkflowReviewerType = 'LINE_MANAGER' | 'ROLE' | 'USER';

export type WorkflowReviewerInfo = {ids: Array<string>};

export type WorkflowStepStatus = 'APPROVED' | 'PARTIALLY_APPROVED' | 'DECLINED';

export type WorkflowComparator = 'HIGHER_EQUAL' | 'LOWER_EQUAL';

export type WorkflowAmountCondition = {amount: number, operator: WorkflowComparator};

export type WorkflowAutomationRule = {expense_status: WorkflowStepStatus, required_info: boolean, amount_condition?: WorkflowAmountCondition | undefined};

export type WorkflowProcessStep = {step_number: number, reviewer_type: WorkflowReviewerType, reviewer_info?: WorkflowReviewerInfo | undefined, automation_rule?: WorkflowAutomationRule | undefined};

export type VisibilityOwnerType = 'USER';

export type PersistVisibility = {type: VisibilityOwnerType, value: Array<string>};

export type WorkflowTargetType = 'FUNDS' | 'GOODS_AND_SERVICES' | 'TRIP';

export type UpdateWorkflow = {name?: string | undefined, description?: string | undefined, policy_url?: string | undefined, steps: Array<WorkflowProcessStep>, visibilities: Array<PersistVisibility>, target_type: WorkflowTargetType};

export type UpdateApiBusinessV2WorkflowsWorkflowIdArgs = {workflowId: string, body: UpdateWorkflow};

export type UpdateApiBusinessV2WorkflowsWorkflowIdOptions = {baseUrl?: string | undefined, standardAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const workflowStatus = z.enum(["ACTIVE", "DEACTIVATED", "DELETED"]);

export const workflowTargetType = z.enum(["FUNDS", "GOODS_AND_SERVICES", "TRIP"]);

export const workflowReviewerType = z.enum(["LINE_MANAGER", "ROLE", "USER"]);

export const workflowReviewerInfo = z.object({ids: z.array(z.string())});

export const workflowStepStatus = z.enum(["APPROVED", "PARTIALLY_APPROVED", "DECLINED"]);

export const workflowComparator = z.enum(["HIGHER_EQUAL", "LOWER_EQUAL"]);

export const workflowAmountCondition = z.object({amount: z.number(), operator: workflowComparator});

export const workflowAutomationRule = z.object({expense_status: workflowStepStatus, required_info: z.boolean(), amount_condition: workflowAmountCondition.optional()});

export const workflowProcessStep = z.object({step_number: z.number().int().gte(1), reviewer_type: workflowReviewerType, reviewer_info: workflowReviewerInfo.optional(), automation_rule: workflowAutomationRule.optional()});

export const visibilityOwnerType = z.literal("USER");

export const persistVisibility = z.object({type: visibilityOwnerType, value: z.array(z.string())});

export const workflow = z.object({id: z.string().optional(), name: z.string().optional(), description: z.string().optional(), policy_url: z.string().optional(), status: workflowStatus.optional(), target_type: workflowTargetType.optional(), priority: z.number().int().optional(), steps_count: z.number().int().optional(), steps: z.array(workflowProcessStep), visibilities: z.array(persistVisibility)});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Update Workflow
 * 
 * PUT /business/v2/workflows/{workflowId}
 */
export const updateApiBusinessV2WorkflowsWorkflowId = async (args: UpdateApiBusinessV2WorkflowsWorkflowIdArgs, options?: UpdateApiBusinessV2WorkflowsWorkflowIdOptions) => {
const {baseUrl = "https://api.soldo.com", fetch: fetchFn = fetch, standardAuth} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/json")
headers.set('accept', "application/json")

if (standardAuth !== undefined) headers.set('authorization', `Bearer ${standardAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/business/v2/workflows/${encodeURIComponent(String(args.workflowId))}${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "PUT", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(workflow, await res.json())
};