package irontelemetry

import "time"

// SeverityLevel represents the severity of an event
type SeverityLevel string

const (
	SeverityDebug   SeverityLevel = "debug"
	SeverityInfo    SeverityLevel = "info"
	SeverityWarning SeverityLevel = "warning"
	SeverityError   SeverityLevel = "error"
	SeverityFatal   SeverityLevel = "fatal"
)

// BreadcrumbCategory represents the category of a breadcrumb
type BreadcrumbCategory string

const (
	CategoryUI           BreadcrumbCategory = "ui"
	CategoryHTTP         BreadcrumbCategory = "http"
	CategoryNavigation   BreadcrumbCategory = "navigation"
	CategoryConsole      BreadcrumbCategory = "console"
	CategoryAuth         BreadcrumbCategory = "auth"
	CategoryBusiness     BreadcrumbCategory = "business"
	CategoryNotification BreadcrumbCategory = "notification"
	CategoryCustom       BreadcrumbCategory = "custom"
)

// Breadcrumb represents an event leading up to an error
type Breadcrumb struct {
	Timestamp time.Time            `json:"timestamp"`
	Category  BreadcrumbCategory   `json:"category"`
	Message   string               `json:"message"`
	Level     SeverityLevel        `json:"level,omitempty"`
	Data      map[string]any       `json:"data,omitempty"`
}

// User represents user information for context
type User struct {
	ID    string         `json:"id"`
	Email string         `json:"email,omitempty"`
	Name  string         `json:"name,omitempty"`
	Data  map[string]any `json:"data,omitempty"`
}

// StackFrame represents a single frame in a stack trace
type StackFrame struct {
	Function string   `json:"function,omitempty"`
	Filename string   `json:"filename,omitempty"`
	Lineno   int      `json:"lineno,omitempty"`
	Colno    int      `json:"colno,omitempty"`
	Context  []string `json:"context,omitempty"`
}

// ExceptionInfo represents exception/error information
type ExceptionInfo struct {
	Type       string       `json:"type"`
	Message    string       `json:"message"`
	Stacktrace []StackFrame `json:"stacktrace,omitempty"`
}

// PlatformInfo represents platform/runtime information
type PlatformInfo struct {
	Name    string `json:"name"`
	Version string `json:"version,omitempty"`
	OS      string `json:"os,omitempty"`
}

// JourneyContext represents journey context for tracking user flows
type JourneyContext struct {
	JourneyID   string         `json:"journeyId"`
	Name        string         `json:"name"`
	CurrentStep string         `json:"currentStep,omitempty"`
	StartedAt   time.Time      `json:"startedAt"`
	Metadata    map[string]any `json:"metadata"`
}

// TelemetryEvent represents an event payload sent to the server
type TelemetryEvent struct {
	EventID     string          `json:"eventId"`
	Timestamp   time.Time       `json:"timestamp"`
	Level       SeverityLevel   `json:"level"`
	Message     string          `json:"message,omitempty"`
	Exception   *ExceptionInfo  `json:"exception,omitempty"`
	User        *User           `json:"user,omitempty"`
	Tags        map[string]string `json:"tags"`
	Extra       map[string]any  `json:"extra"`
	Breadcrumbs []Breadcrumb    `json:"breadcrumbs"`
	Journey     *JourneyContext `json:"journey,omitempty"`
	Environment string          `json:"environment,omitempty"`
	AppVersion  string          `json:"appVersion,omitempty"`
	Platform    PlatformInfo    `json:"platform"`
}

// ParsedDSN represents parsed DSN components
type ParsedDSN struct {
	PublicKey  string
	Host       string
	Protocol   string
	APIBaseURL string
}

// SendResult represents the result of sending an event
type SendResult struct {
	Success bool
	EventID string
	Error   string
	Queued  bool
}

// Options represents options for initializing the SDK
type Options struct {
	// DSN containing the public key
	// Format: https://pk_live_xxx@irontelemetry.com
	DSN string

	// Environment name (e.g., 'production', 'staging')
	Environment string

	// Application version
	AppVersion string

	// Sample rate for events (0.0 to 1.0)
	SampleRate float64

	// Maximum number of breadcrumbs to keep
	MaxBreadcrumbs int

	// Enable debug logging
	Debug bool

	// Hook called before sending an event
	// Return nil to drop the event
	BeforeSend func(*TelemetryEvent) *TelemetryEvent

	// Enable offline queue for failed events
	EnableOfflineQueue bool

	// Maximum size of the offline queue
	MaxOfflineQueueSize int

	// API base URL (defaults to parsed from DSN)
	APIBaseURL string
}

// DefaultOptions returns Options with default values
func DefaultOptions() Options {
	return Options{
		Environment:         "production",
		AppVersion:          "0.0.0",
		SampleRate:          1.0,
		MaxBreadcrumbs:      100,
		Debug:               false,
		EnableOfflineQueue:  true,
		MaxOfflineQueueSize: 500,
	}
}