import {z} from 'zod'

export type ObjectType = 'Ticket' | 'Customer';

export type RequirementType = 'visible' | 'required' | 'conditional';

export type ManagedTicketFieldType = 'contact_reason' | 'product' | 'resolution' | 'ai_intent' | 'ai_outcome' | 'ai_sales' | 'ai_discount' | 'ai_journey' | 'managed_sentiment' | 'call_status';

export type ManagedCustomerFieldType = 'customer_type';

export type TextInputSettings = {input_type: 'input', placeholder?: string | undefined};

export type DropdownInputSettingsSettings = {input_type: 'dropdown', choices: Array<string>, default?: string | undefined};

export type TextDataTypeDefinition = {data_type: 'text', input_settings: TextInputSettings | DropdownInputSettingsSettings};

export type NumberInputSettings = {input_type: 'input_number', placeholder?: string | undefined, min?: (number | string) | undefined, max?: (number | string) | undefined};

export type NumberDataTypeDefinition = {data_type: 'number', input_settings: NumberInputSettings};

export type BooleanDropdownInputSettings = {input_type: 'dropdown', choices?: Array<boolean> | undefined, default?: boolean | undefined};

export type BooleanDataTypeDefinition = {data_type: 'boolean', input_settings: BooleanDropdownInputSettings};

export type UpdateCustomField = {external_id?: string | undefined, object_type?: ObjectType | undefined, label?: string | undefined, description?: string | undefined, priority?: number | undefined, required?: boolean | undefined, requirement_type?: RequirementType | undefined, managed_type?: (ManagedTicketFieldType | ManagedCustomerFieldType) | undefined, definition?: (TextDataTypeDefinition | NumberDataTypeDefinition | BooleanDataTypeDefinition) | undefined, deactivated_datetime?: string | undefined};

export type UpdateApiApiCustomFieldsIdArgs = {id: number, body: UpdateCustomField};

export type UpdateApiApiCustomFieldsIdOptions = {baseUrl?: string | undefined, basicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const objectType = z.enum(["Ticket", "Customer"]);

export const requirementType = z.enum(["visible", "required", "conditional"]);

export const managedTicketFieldType = z.enum(["contact_reason", "product", "resolution", "ai_intent", "ai_outcome", "ai_sales", "ai_discount", "ai_journey", "managed_sentiment", "call_status"]);

export const managedCustomerFieldType = z.literal("customer_type");

export const textInputSettings = z.object({input_type: z.literal("input"), placeholder: z.string().max(1024).optional()});

export const dropdownInputSettingsSettings = z.object({input_type: z.literal("dropdown"), choices: z.array(z.string()), default: z.string().optional()});

export const textDataTypeDefinition = z.object({data_type: z.literal("text"), input_settings: z.discriminatedUnion("input_type", [textInputSettings, dropdownInputSettingsSettings])});

export const numberInputSettings = z.object({input_type: z.literal("input_number"), placeholder: z.string().max(1024).optional(), min: z.union([z.number(), z.string()]).optional(), max: z.union([z.number(), z.string()]).optional()});

export const numberDataTypeDefinition = z.object({data_type: z.literal("number"), input_settings: numberInputSettings});

export const booleanDropdownInputSettings = z.object({input_type: z.literal("dropdown"), choices: z.array(z.boolean()).optional(), default: z.boolean().optional()});

export const booleanDataTypeDefinition = z.object({data_type: z.literal("boolean"), input_settings: booleanDropdownInputSettings});

export const customField = z.object({id: z.number().int(), external_id: z.string().optional(), object_type: objectType, label: z.string().max(255), description: z.string().max(1024).optional(), priority: z.number().int().gte(0), required: z.boolean(), requirement_type: requirementType, managed_type: z.union([managedTicketFieldType, managedCustomerFieldType]).optional(), definition: z.discriminatedUnion("data_type", [textDataTypeDefinition, numberDataTypeDefinition, booleanDataTypeDefinition]), created_datetime: z.string(), updated_datetime: z.string(), deactivated_datetime: z.string().optional()});

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 a custom field
 * 
 * PUT /api/custom-fields/{id}
 */
export const updateApiApiCustomFieldsId = async (args: UpdateApiApiCustomFieldsIdArgs, options?: UpdateApiApiCustomFieldsIdOptions) => {
const {baseUrl = "https://your-domain.gorgias.com", fetch: fetchFn = fetch, basicAuth} = options ?? {}

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

if (basicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuth.username}:${basicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/custom-fields/${encodeURIComponent(String(args.id))}${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(customField, await res.json())
};