"use client"

export interface SkillAttemptPayload {
  skillCode: string
  promptLevel: number
  correct: boolean
  responseMs: number
}

export interface SessionPayload {
  childId: string
  startedAt: string
  endedAt: string
  durationSec: number
  skillsPracticed: string
  attempts: SkillAttemptPayload[]
}

export async function syncSession(payload: SessionPayload): Promise<string | null> {
  try {
    const res = await fetch("/api/sessions/sync", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({
        childId: payload.childId,
        session: {
          startedAt: payload.startedAt,
          endedAt: payload.endedAt,
          durationSec: payload.durationSec,
          skillsPracticed: payload.skillsPracticed,
        },
        attempts: payload.attempts,
      }),
    })
    const data = await res.json()
    return data.sessionId ?? null
  } catch {
    return null
  }
}

export async function createMilestone(childId: string, skillCode: string): Promise<boolean> {
  try {
    const res = await fetch("/api/milestones", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ childId, skillCode }),
    })
    return res.ok
  } catch {
    return false
  }
}