package build

import (
	"bytes"
	"context"
	"strings"
	"testing"

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

func TestAnnounceAgainRewritesOnlyADoneKeyUnchanged(t *testing.T) { // recovery of photos and link2pay, 2026-10-29
	for _, c := range []struct {
		name   string
		key    *delivery.BuilderBuild
		fp     string
		refuse string
	}{
		{name: "a done key is written again, unchanged, as a new revision", key: &delivery.BuilderBuild{State: delivery.BuildDone, Step: "built"}},
		{name: "a failed key is refused, builder_build_again is for it", refuse: "builder_build_again", key: &delivery.BuilderBuild{State: delivery.BuildFailed, Error: "x"}},
		{name: "a building key is refused, builder_ask_again is for it", refuse: "builder_ask_again", key: &delivery.BuilderBuild{State: delivery.BuildBuilding, By: "novox.builder", Step: "asked"}},
		{name: "a key with no build is refused", refuse: "has no build key"},
		{name: "a fingerprint that is not one is refused", refuse: "fingerprint", fp: "nope"},
	} {
		t.Run(c.name, func(t *testing.T) {
			r := newRig(t, goBundle)
			var rev uint64
			if c.key != nil {
				c.key.Manifest = manifestD
				rev = putBuild(t, r.st, r.key, *c.key)
			}
			before := bytes.Clone(r.st.vals[r.key])
			fp := fp1
			if c.fp != "" {
				fp = c.fp
			}
			res := r.b.AnnounceAgain(context.Background(), "m", fp, "grant lost", "shanks.lead")
			if c.refuse != "" {
				if !strings.Contains(res.Refused, c.refuse) || res.Revision != 0 || r.st.revs[r.key] != rev || !bytes.Equal(r.st.vals[r.key], before) {
					t.Fatalf("answer %+v, key at revision %d (was %d); want refused with %q and nothing written", res, r.st.revs[r.key], rev, c.refuse)
				}
				return
			}
			if res.Refused != "" || res.Revision <= rev || r.st.revs[r.key] != res.Revision || !bytes.Equal(r.st.vals[r.key], before) {
				t.Fatalf("answer %+v, key at revision %d (was %d); want a new revision and the same bytes", res, r.st.revs[r.key], rev)
			}
		})
	}
}