const GRAPHQL_ENDPOINT = '/api/graphql'

async function graphqlRequest(query, variables = {}) {
  const response = await fetch(GRAPHQL_ENDPOINT, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ query, variables })
  })
  if (!response.ok) {
    const text = await response.text()
    throw new Error(`HTTP ${response.status}: ${text}`)
  }
  const result = await response.json()
  if (result.errors) throw new Error(result.errors.map(e => e.message).join('\\n'))
  return result.data
}

const GET_APPLICATIONS = `
  query GetApplications($name: String, $activityId: ID, $page: Int, $size: Int) {
    activityPlayerApplications(name: $name, activityId: $activityId, page: $page, size: $size) {
      id playerName activityName phone applyTime state
    }
  }
`

export const PlayerApi = {
  getApplications: async (name, activityId, page, size) => {
    const data = await graphqlRequest(GET_APPLICATIONS, { name, activityId, page, size })
    return data.activityPlayerApplications || []
  }
}