package lib

import (
	"crypto/rand"
	"encoding/hex"
	"encoding/json"
	"fmt"
	"os"
	"runtime/debug"
	"time"
)

const errorsDir = "/tank/inou/errors"

type Incident struct {
	ID        string                 `json:"id"`
	Timestamp time.Time              `json:"timestamp"`
	Context   string                 `json:"context"`
	Error     string                 `json:"error"`
	Details   map[string]interface{} `json:"details"`
	Stack     string                 `json:"stack"`
}

func randomHex(n int) string {
	b := make([]byte, n)
	rand.Read(b)
	return hex.EncodeToString(b)
}

func SendErrorForAnalysis(context string, err error, details map[string]interface{}) {
	id := fmt.Sprintf("%s-%s", time.Now().Format("20060102-150405"), randomHex(4))

	incident := Incident{
		ID:        id,
		Timestamp: time.Now(),
		Context:   context,
		Error:     err.Error(),
		Details:   details,
		Stack:     string(debug.Stack()),
	}

	os.MkdirAll(errorsDir, 0755)
	path := fmt.Sprintf("%s/%s.json", errorsDir, id)
	data, _ := json.MarshalIndent(incident, "", "  ")
	os.WriteFile(path, data, 0644)

	SendSignal(fmt.Sprintf("[inou] %s: %v\n%s", context, err, path))
}