/**
 * NIP-95 API management methods for ConfigStorage
 */

import type { Nip95Config, ConfigData } from './configStorageTypes'
import { DEFAULT_NIP95_APIS } from './configStorageTypes'

export function getEnabledNip95Apis(config: ConfigData): string[] {
  return config.nip95Apis
    .filter((api) => api.enabled)
    .sort((a, b) => a.priority - b.priority)
    .map((api) => api.url)
}

export function getPrimaryNip95ApiFromConfig(config: ConfigData): string {
  const apis = getEnabledNip95Apis(config)
  if (apis.length === 0) {
    const defaultApi = DEFAULT_NIP95_APIS[0]
    if (!defaultApi) {
      throw new Error('No default NIP-95 API configured')
    }
    return defaultApi.url
  }
  const primaryApi = apis[0]
  if (!primaryApi) {
    const defaultApi = DEFAULT_NIP95_APIS[0]
    if (!defaultApi) {
      throw new Error('No default NIP-95 API configured')
    }
    return defaultApi.url
  }
  return primaryApi
}

export function createNip95Config(url: string, enabled: boolean, priority: number): Nip95Config {
  return {
    id: `nip95_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`,
    url,
    enabled,
    priority,
    createdAt: Date.now(),
  }
}

export function addNip95ApiToConfig(config: ConfigData, url: string, enabled: boolean, priority?: number): ConfigData {
  const maxPriority = Math.max(...config.nip95Apis.map((a) => a.priority), 0)
  const newApi = createNip95Config(url, enabled, priority ?? maxPriority + 1)
  return {
    ...config,
    nip95Apis: [...config.nip95Apis, newApi],
  }
}

export function updateNip95ApiInConfig(
  config: ConfigData,
  id: string,
  updates: Partial<Omit<Nip95Config, 'id' | 'createdAt'>>
): ConfigData {
  const apiIndex = config.nip95Apis.findIndex((a) => a.id === id)
  if (apiIndex === -1) {
    throw new Error(`NIP-95 API with id ${id} not found`)
  }
  const existingApi = config.nip95Apis[apiIndex]
  const updatedApis = [...config.nip95Apis]
  updatedApis[apiIndex] = {
    ...existingApi,
    ...updates,
  } as Nip95Config
  return {
    ...config,
    nip95Apis: updatedApis,
  }
}

export function removeNip95ApiFromConfig(config: ConfigData, id: string): ConfigData {
  return {
    ...config,
    nip95Apis: config.nip95Apis.filter((a) => a.id !== id),
  }
}