import {z} from 'zod'

export type Locations = {id?: number | undefined, location: Array<string>, approaches?: (Array<'unrestricted' | 'curb' | '""(empty string)'>) | undefined};

export type Location = {lat: number, lon: number};

export type Vehicle = {id: string, location: Location, attributes?: Record<string, never> | undefined, remaining_waypoints?: Array<Location> | undefined, priority?: number | undefined};

export type Job = {id: string, description?: string | undefined, location_index: number, delivery?: Array<number> | undefined, pickup?: Array<number> | undefined, service?: number | undefined, time_windows?: Array<Array<number>> | undefined, skills?: Array<number> | undefined, priority?: number | undefined, setup?: number | undefined, zones?: Array<number> | undefined, metadata?: Record<string, never> | undefined, depot_ids?: Array<string> | undefined, load_types?: Array<string> | undefined, incompatible_load_types?: Array<string> | undefined, sequence_order?: number | undefined, revenue?: number | undefined, outsourcing_cost?: number | undefined, follow_lifo_order?: boolean | undefined, max_visit_lateness?: number | undefined, volume?: ({width?: number | undefined, depth?: number | undefined, height?: number | undefined, alignment?: ('strict' | 'parallel' | 'fixed_bottom') | undefined}) | undefined, joint_order?: number | undefined};

export type ShipmentStepPickup = {id: string, description?: string | undefined, location_index: number, service?: number | undefined, time_windows?: Array<Array<number>> | undefined, setup?: number | undefined, sequence_order?: number | undefined, metadata?: Record<string, never> | undefined, max_visit_lateness?: number | undefined};

export type ShipmentStepDelivery = {id: string, description?: string | undefined, location_index: number, service?: number | undefined, time_windows?: Array<Array<number>> | undefined, setup?: number | undefined, sequence_order?: number | undefined, metadata?: Record<string, never> | undefined, max_visit_lateness?: number | undefined};

export type Shipment = {pickup: ShipmentStepPickup, delivery: ShipmentStepDelivery, amount?: Array<number> | undefined, skills?: Array<number> | undefined, priority?: number | undefined, zones?: Array<number> | undefined, load_types?: Array<string> | undefined, incompatible_load_types?: Array<string> | undefined, max_time_in_vehicle?: number | undefined, revenue?: number | undefined, outsourcing_cost?: number | undefined, follow_lifo_order?: boolean | undefined, volume?: ({width?: number | undefined, depth?: number | undefined, height?: number | undefined, alignment?: ('strict' | 'parallel' | 'fixed_bottom') | undefined}) | undefined, joint_order?: number | undefined};

export type Depot = {id: string, location_index: number, description?: string | undefined, time_windows?: Array<Array<number>> | undefined, service?: number | undefined};

export type CustomizedObjectives = {type: 'min' | 'min-max', value: 'vehicles' | 'completion_time' | 'travel_cost' | 'tasks'};

export type ObjectiveOption = {travel_cost?: ('duration' | 'distance' | 'air_distance' | 'customized') | undefined, minimise_num_depots?: boolean | undefined, custom?: CustomizedObjectives | undefined, solver_mode?: ('flexible' | 'fast' | 'internal') | undefined, allow_early_arrival?: boolean | undefined, solving_time_limit?: number | undefined};

export type Constraint = {max_vehicle_overtime?: number | undefined, max_visit_lateness?: number | undefined, max_activity_waiting_time?: number | undefined};

export type RoutingOption = {mode?: ('car' | 'truck') | undefined, traffic_timestamp?: number | undefined, truck_size?: string | undefined, truck_weight?: number | undefined, avoid?: (Array<'toll' | 'highway' | 'bbox' | 'left_turn' | 'right_turn' | 'sharp_turn' | 'uturn' | 'service_road' | 'ferry' | 'none '>) | undefined, disable_cache?: boolean | undefined, hazmat_type?: (Array<'general' | 'circumstantial' | 'explosive' | 'harmful_to_water'>) | undefined, profiles?: Record<string, never> | undefined, context?: 'avgspeed' | undefined, allow?: (Array<'taxi' | 'hov'>) | undefined, cross_border?: boolean | undefined, truck_axle_load?: number | undefined};

export type Grouping = {order_grouping?: ({grouping_diameter?: number | undefined}) | undefined, route_grouping?: ({zone_source?: ('system_generated' | 'custom_definition') | undefined, zone_diameter?: number | undefined, penalty_factor?: number | undefined}) | undefined, proximity_factor?: number | undefined};

export type Option = {objective?: ObjectiveOption | undefined, constraint?: Constraint | undefined, routing?: RoutingOption | undefined, grouping?: Grouping | undefined};

export type Step = {type: 'start' | 'end' | 'job' | 'pickup' | 'delivery' | 'break', id: string, arrival: number, duration?: number | undefined, location?: Array<number> | undefined, location_index?: number | undefined, service?: number | undefined, waiting_time?: number | undefined, load?: Array<number> | undefined, description?: string | undefined, setup?: number | undefined, distance?: number | undefined};

export type RouteSolutionRequest = {vehicle: string, cost: number, steps: Array<Step>, duration?: number | undefined, distance?: number | undefined, geometry?: string | undefined, service?: number | undefined, waiting_time?: number | undefined, priority?: number | undefined, delivery?: Array<number> | undefined, pickup?: Array<number> | undefined, description?: string | undefined, setup?: number | undefined};

export type OptimizationUnassigned = {jobs?: Array<string> | undefined, shipments?: Array<Array<string>> | undefined};

export type RelationStep = {type: 'start' | 'end' | 'job' | 'pickup' | 'delivery', id?: string | undefined};

export type Relation = {type: 'in_same_route' | 'in_sequence' | 'in_direct_sequence' | 'precedence', steps: Array<RelationStep>, vehicle?: string | undefined, max_duration?: number | undefined, min_duration?: number | undefined, id?: number | undefined};

export type Zones = {id: number, geometry?: ({description?: string | undefined, type?: ('Polygon' | 'MultiPolygon') | undefined, coordinates?: Array<Array<number>> | undefined}) | undefined, geofence_id?: string | undefined};

export type OptimizationV2RequestBody = {locations: Locations, vehicles: Array<Vehicle>, jobs?: Array<Job> | undefined, shipments?: Array<Shipment> | undefined, depots?: Array<Depot> | undefined, options?: Option | undefined, solution?: Array<RouteSolutionRequest> | undefined, unassigned?: OptimizationUnassigned | undefined, description?: string | undefined, relations?: Array<Relation> | undefined, cost_matrix?: Array<Array<number>> | undefined, zones?: Array<Zones> | undefined, distance_matrix?: Array<Array<number>> | undefined, duration_matrix?: Array<Array<number>> | undefined, existing_solution_id?: string | undefined};

export type CreateApiOptimizationV2Args = {key: unknown, body: OptimizationV2RequestBody};

export type CreateApiOptimizationV2Options = {baseUrl?: string | undefined, apiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const pOSTResponse = z.object({id: z.string().optional(), message: z.string().optional(), status: z.string().optional(), warnings: z.array(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
};

/**
 * Flexible POST
 * 
 * POST /optimization/v2
 */
export const createApiOptimizationV2 = async (args: CreateApiOptimizationV2Args, options?: CreateApiOptimizationV2Options) => {
const {baseUrl = "https://api.nextbillion.io", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (args.key != null) query.append("key", String(args.key))
if (apiKey !== undefined) query.set("key", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/optimization/v2${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", 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(pOSTResponse, await res.json())
};