package reflector_test

import (
	"context"
	"encoding/json"
	"fmt"

	"git.flytoex.net/yuanwei/flyto-agent/pkg/evolve"
	"git.flytoex.net/yuanwei/flyto-agent/pkg/reflector"
	"git.flytoex.net/yuanwei/flyto-agent/pkg/validator"
)

// Example_evaluatorAsValidator wraps an evolve.Evaluator as a
// validator.Validator so a GA-style scorer can plug into the
// commit-gate pipeline without rewriting the scorer against the
// Validator interface.
//
// Example_evaluatorAsValidator 把 evolve.Evaluator 包为
// validator.Validator, 让 GA 式打分器直接接入 commit-gate 流水线, 无需
// 针对 Validator 接口重写打分器.
func Example_evaluatorAsValidator() {
	scorer, _ := evolve.NewFuncEvaluator(func(_ context.Context, c evolve.Candidate) (float64, map[string]float64, error) {
		payload, _ := c.Payload.(map[string]any)
		if payload["risky"] == true {
			return 0.2, map[string]float64{"risk": 0.8}, nil
		}
		return 0.9, map[string]float64{"risk": 0.1}, nil
	})

	extract := func(d validator.DiffInput) (evolve.Candidate, error) {
		var payload map[string]any
		if err := json.Unmarshal(d.Raw, &payload); err != nil {
			return evolve.Candidate{}, err
		}
		return evolve.Candidate{ID: d.SourceTool, Payload: payload}, nil
	}

	v := reflector.EvaluatorAsValidator(scorer, extract, 0.5,
		reflector.WithName("ga-gate"),
		reflector.WithPolicyVersion("2026-04"),
	)

	vd, _ := v.Validate(context.Background(), validator.DiffInput{
		SourceTool: "SQLCAS",
		Raw:        []byte(`{"risky": true}`),
	})

	fmt.Println(v.Name(), vd.Approved, vd.Severity)
	// Output: ga-gate false block
}