export type MunicipalityProfile = {
  profileId: string
  jCode: string
  displayName: string | null
  updatedAt: string
  updatedBy: string
  legacyName: string | null
  legacyMailingAddress: string | null
  legacyCityStateZip: string | null
}

export type MunicipalityProfileValidationError = {
  error: string
}

export async function fetchMunicipalityProfiles(
  fetcher: typeof fetch = fetch,
): Promise<MunicipalityProfile[]> {
  const response = await fetcher('/api/municipalities/profiles')
  if (!response.ok) {
    throw new Error(`Failed to load municipality profiles (${response.status})`)
  }
  return (await response.json()) as MunicipalityProfile[]
}

export async function createMunicipalityProfile(
  jCode: string,
  displayName: string | null,
  fetcher: typeof fetch = fetch,
): Promise<MunicipalityProfile> {
  const response = await fetcher('/api/municipalities/profiles', {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ jCode, displayName }),
  })

  if (response.status === 422) {
    const problem = (await response.json()) as MunicipalityProfileValidationError
    throw new MunicipalityValidationError(problem.error ?? 'Validation failed.')
  }

  if (!response.ok) {
    throw new Error(`Failed to create municipality profile (${response.status})`)
  }

  return (await response.json()) as MunicipalityProfile
}

export async function updateMunicipalityProfile(
  profileId: string,
  displayName: string | null,
  fetcher: typeof fetch = fetch,
): Promise<MunicipalityProfile> {
  const response = await fetcher(`/api/municipalities/profiles/${profileId}`, {
    method: 'PUT',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ displayName }),
  })

  if (response.status === 422) {
    const problem = (await response.json()) as MunicipalityProfileValidationError
    throw new MunicipalityValidationError(problem.error ?? 'Validation failed.')
  }

  if (!response.ok) {
    throw new Error(`Failed to update municipality profile (${response.status})`)
  }

  return (await response.json()) as MunicipalityProfile
}

export type LegacyJurisdiction = {
  jCode: string
  name: string | null
}

export async function fetchAvailableJurisdictions(
  fetcher: typeof fetch = fetch,
): Promise<LegacyJurisdiction[]> {
  const response = await fetcher('/api/municipalities/jurisdictions')
  if (!response.ok) {
    throw new Error(`Failed to load jurisdictions (${response.status})`)
  }
  return (await response.json()) as LegacyJurisdiction[]
}

export class MunicipalityValidationError extends Error {
  constructor(message: string) {
    super(message)
    this.name = 'MunicipalityValidationError'
  }
}