package main

import (
	"encoding/json"
	"strings"
	"testing"
	"time"

	"git.novox.be/novox/mesh-contracts/health-and-repair/go/clients/meshhandactsclient"
	"git.novox.be/novox/mesh-delivery/modules/mesh-delivery-builder/buildrun"
	"git.novox.be/novox/mesh-delivery/sdk/buildstep"
	stdio "git.novox.be/novox/mesh-sdk/go"
)

type fakeHeard struct{ m map[string]json.RawMessage }

func (f *fakeHeard) Keys() ([]string, error) {
	var out []string
	for k := range f.m {
		out = append(out, k)
	}
	return out, nil
}
func (f *fakeHeard) Get(k string) (*stdio.StateEntry, error) {
	v, ok := f.m[k]
	if !ok {
		return nil, nil
	}
	return &stdio.StateEntry{Key: k, Value: v}, nil
}
func (f *fakeHeard) Delete(k string) error { delete(f.m, k); return nil }

// Design 47 G §604, §546: builder_toolchains lists the keys; builder_toolchains_drop deletes one with its why, after the
// hand act is recorded, and nothing is deleted when it is not.
func TestToolchainsToolsListAndDropAKeyAfterTheHandAct(t *testing.T) {
	data, err := buildstep.EncodeToolchain(buildstep.Toolchain{Language: "go", Version: "1.26.0", Recipe: "1", Digest: "sha256:a", At: time.Now()})
	if err != nil {
		t.Fatal(err)
	}
	st := &fakeHeard{m: map[string]json.RawMessage{"ace.go": data}}
	asked := 0
	var failAct error
	acts := meshhandactsclient.Recorder{Ask: func(string, any) (json.RawMessage, error) {
		asked++
		return json.RawMessage(`{"id":"h1"}`), failAct
	}}
	tools := toolchainsTools(st, acts, time.Now)
	run := func(name string, args map[string]any) (any, error) {
		for _, tl := range tools {
			if tl.Name == name {
				return tl.Run(args)
			}
		}
		t.Fatalf("no tool %s", name)
		return nil, nil
	}
	got, err := run(buildrun.ToolchainsTool, nil)
	rows := got.(map[string]any)["toolchains"].([]map[string]any)
	if err != nil || len(rows) != 1 || rows[0]["key"] != "ace.go" || rows[0]["digest"] != "sha256:a" {
		t.Fatalf("listed %v, %v", got, err)
	}
	if _, err := run(buildrun.ToolchainsDropTool, map[string]any{"key": "ace.go", "why": ""}); err == nil {
		t.Fatal("a drop with no why was taken")
	}
	failAct = json.Unmarshal([]byte("x"), new(int))
	if _, err := run(buildrun.ToolchainsDropTool, map[string]any{"key": "ace.go", "why": "ace left"}); err == nil || !strings.Contains(err.Error(), "nothing was dropped") || len(st.m) != 1 {
		t.Fatalf("a hand act not recorded still dropped: %v", err)
	}
	failAct = nil
	if _, err := run(buildrun.ToolchainsDropTool, map[string]any{"key": "ace.go", "why": "ace left"}); err != nil || len(st.m) != 0 || asked < 2 {
		t.Fatalf("the drop: %v, keys left %d", err, len(st.m))
	}
}