// fake 假执行器：D8 闭环验收用，模拟平台执行（延迟后返回成功）。
package fake

import (
	"context"
	"time"

	"everypublish/agentcore/internal/exec"
	"everypublish/shared/proto"
)

// Executor 假执行器（可作兜底：任何平台都返回成功）
type Executor struct {
	SimMS int
}

// Platform 空串表示通用（注册为兜底）
func (e Executor) Platform() string { return "" }

// Execute 模拟执行：延迟 SimMS 后返回成功
func (e Executor) Execute(ctx context.Context, task exec.Task) exec.Result {
	select {
	case <-time.After(time.Duration(e.SimMS) * time.Millisecond):
	case <-ctx.Done():
		return exec.Result{TaskID: task.TaskID, Status: "failed", Error: "cancelled"}
	}
	return exec.Result{
		TaskID:       task.TaskID,
		Status:       "success",
		PublishedURL: "https://example.com/fake/" + task.TaskID,
		Receipts:     []string{},
	}
}

// SolveChallenge 模拟扫码：延迟后返回已解决
func (e Executor) SolveChallenge(ctx context.Context, ch proto.Challenge, onQR func(qrToken, qrURL string)) (bool, string) {
	if onQR != nil {
		onQR("fake-qr-token", "https://example.com/fake-qr")
	}
	select {
	case <-time.After(time.Duration(e.SimMS) * time.Millisecond):
	case <-ctx.Done():
		return false, ""
	}
	return true, "fake-qr-token"
}