package build

import (
	"encoding/json"
	"os"
	"testing"

	"git.novox.be/novox/mesh-sdk/go/delivery"
)

// result reads a captured step value of mesh-build-image (testdata/captured/README) and returns its result.
func captured(t *testing.T, name string) json.RawMessage {
	t.Helper()
	raw, err := os.ReadFile("testdata/captured/" + name)
	if err != nil {
		t.Fatal(err)
	}
	var step delivery.Step
	if err := json.Unmarshal(raw, &step); err != nil {
		t.Fatalf("%s: %v", name, err)
	}
	if step.State != delivery.StepPassed || len(step.Result) == 0 {
		t.Fatalf("%s: state %q, result %s, want a passed step with a result", name, step.State, step.Result)
	}
	return step.Result
}

func TestCapturedImageStepsDecodeWithTheBuildersOwnTypes(t *testing.T) { // review r2, mesh-catalog 2; ADR 0487 clause 1
	var f fetchResult
	if err := json.Unmarshal(captured(t, "fetch.json"), &f); err != nil || f.Workspace == "" {
		t.Errorf("fetch = %+v, %v, want a workspace (the field the builder reads)", f, err)
	}
	var trunk buildResult
	if err := json.Unmarshal(captured(t, "build-trunk.json"), &trunk); err != nil || trunk.Digest == "" || trunk.Reference == "" {
		t.Errorf("trunk build = %+v, %v, want a digest and a reference", trunk, err)
	}
	var cand buildResult
	if err := json.Unmarshal(captured(t, "build-candidate.json"), &cand); err != nil || cand.Digest == "" || cand.Reference != "" {
		t.Errorf("candidate build = %+v, %v, want a digest and no reference", cand, err)
	}
}