package packaging_test

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

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

// The operator's public keys reach every node as a file beside the state file, fed by a setting of the node-engine
// (novox/hq ADR 0539 clauses 3 and 11): the node agent reads it, and a composition made by hand is applied only when one
// of these keys signed it. The setting may be empty, and then no operator key is trusted.
func TestTheManifestDeclaresTheOperatorKeysFileFedByASetting(t *testing.T) {
	raw, err := os.ReadFile("../module.json")
	if err != nil {
		t.Fatal(err)
	}
	if _, err := catalogue.ParseManifest(raw); err != nil {
		t.Fatalf("the manifest no longer parses: %v", err)
	}
	var m struct {
		Config map[string]struct {
			Type    string `json:"type"`
			Default any    `json:"default"`
		} `json:"config"`
		Resources []struct {
			ID      string `json:"id"`
			Type    string `json:"type"`
			Path    string `json:"path"`
			Mode    string `json:"mode"`
			Content string `json:"content"`
		} `json:"resources"`
	}
	if err := json.Unmarshal(raw, &m); err != nil {
		t.Fatal(err)
	}
	setting, ok := m.Config["operator-signers"]
	if !ok || setting.Type != "string" || setting.Default != "" {
		t.Fatalf("the setting operator-signers is %+v: a string that may be empty", setting)
	}
	for _, r := range m.Resources {
		if r.ID != "operator-keys" {
			continue
		}
		if r.Type != "file" || r.Path != "/var/lib/mesh-host/operator-keys" || r.Mode != "0644" ||
			!strings.Contains(r.Content, "${config:operator-signers}") {
			t.Fatalf("the file is %+v: it is declared beside the state file, 0644, its content the setting", r)
		}
		return
	}
	t.Fatal("module.json declares no operator-keys file")
}

// The node agent hears the end of a backup on the event of node-backup's holder, so the manifest consumes it.
func TestTheManifestConsumesTheBackupEvent(t *testing.T) {
	raw, err := os.ReadFile("../module.json")
	if err != nil {
		t.Fatal(err)
	}
	var m struct {
		Consumes []string `json:"consumes"`
	}
	if err := json.Unmarshal(raw, &m); err != nil {
		t.Fatal(err)
	}
	if len(m.Consumes) != 1 || m.Consumes[0] != "restic.backed-up" {
		t.Fatalf("consumes %v", m.Consumes)
	}
	// 774 (ADR 0563 §2, §3): the acts of the node seat and the engine's own asks are its declared state acts, the bucket
	// mesh-host_acts the grants part creates and each node's engine writes under its own keys.
	parsed, err := catalogue.ParseManifest(raw)
	if err != nil {
		t.Fatal(err)
	}
	// 774 (the alert table): beside it the state health, one key per node, the node's own health report, kept until
	// written again (no TTL: a node that stops writing keeps its last word, which the watchman reads with its time).
	if len(parsed.State) != 2 || parsed.State[0].Name != "acts" || parsed.State[0].TTLSeconds != 90*24*60*60 ||
		parsed.State[1].Name != "health" || parsed.State[1].TTLSeconds != 0 {
		t.Fatalf("the manifest declares the state %+v", parsed.State)
	}
}