package main

import (
	"encoding/json"
	"os"
	"slices"
	"strings"
	"testing"
)

func TestConfigFromEnvNamesWhatIsMissing(t *testing.T) {
	env := map[string]string{"MESH_NODE": "novox", "MESH_FORGE_HOST_FILE": "/h", "MESH_GITEA_ORIGINS_FILE": "/o",
		"MESH_GITEA_URL": "http://127.0.0.1:3000/", "MESH_GITEA_ADMIN_USER": "mesh-admin",
		"MESH_GITEA_ADMIN_PASSWORD_FILE": "/p", "MESH_GITEA_SSH_PORT": "222"}
	cfg, err := configFromEnv(func(k string) string { return env[k] })
	if err != nil || cfg.Port != 222 || cfg.Forge.URL != "http://127.0.0.1:3000" {
		t.Fatalf("%+v %v", cfg, err)
	}
	delete(env, "MESH_FORGE_HOST_FILE")
	env["MESH_GITEA_SSH_PORT"] = "x"
	_, err = configFromEnv(func(k string) string { return env[k] })
	if err == nil || !strings.Contains(err.Error(), "MESH_FORGE_HOST_FILE") || !strings.Contains(err.Error(), "MESH_GITEA_SSH_PORT") {
		t.Fatalf("%v", err)
	}
}

// Issue 955: the runtime grants a module only the states its manifest `reads`, and the provider watches the machines'
// keys and, through the SDK's provider, the controller's assignments (where it learns its consumers). Run as the
// bus test does, with every bucket made, a missing grant passes unseen; the manifest is read here instead.
func TestTheManifestReadsEveryStateTheProviderWatches(t *testing.T) {
	raw, err := os.ReadFile("../../module.json")
	if err != nil {
		t.Fatal(err)
	}
	var m struct {
		Reads []string `json:"reads"`
	}
	if err := json.Unmarshal(raw, &m); err != nil {
		t.Fatal(err)
	}
	for _, state := range []string{"mesh-controller.assignments", "ssh-client.keys"} {
		if !slices.Contains(m.Reads, state) {
			t.Errorf("gitea's reads %v lack %q, so the runtime refuses its watch", m.Reads, state)
		}
	}
}