package parser

import (
	"testing"
)

func TestJSONParser(t *testing.T) {
	p := &JSONParser{}
	body := []byte(`{"event":"trade.open","data":{"symbol":"BTC","price":65000}}`)
	msg, err := p.Parse(body)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if msg.Event != "trade.open" {
		t.Errorf("expected event 'trade.open', got '%s'", msg.Event)
	}
	if msg.Data["symbol"] != "BTC" {
		t.Errorf("expected symbol 'BTC', got '%v'", msg.Data["symbol"])
	}
}

func TestJSONParser_NoDataKey(t *testing.T) {
	p := &JSONParser{}
	body := []byte(`{"event":"alert","symbol":"ETH"}`)
	msg, err := p.Parse(body)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if msg.Data["symbol"] != "ETH" {
		t.Errorf("expected symbol 'ETH' in data, got '%v'", msg.Data["symbol"])
	}
}

func TestRegexParser(t *testing.T) {
	p, err := NewRegexParser(`(?P<event>[\w.]+) (?P<message>.+)`)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	body := []byte("trade.open BTC long at 65000")
	msg, err := p.Parse(body)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if msg.Event != "trade.open" {
		t.Errorf("expected event 'trade.open', got '%s'", msg.Event)
	}
	if msg.Data["message"] != "BTC long at 65000" {
		t.Errorf("expected message, got '%v'", msg.Data["message"])
	}
}

func TestTextParser(t *testing.T) {
	p := &TextParser{}
	body := []byte("raw notification text here")
	msg, err := p.Parse(body)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if msg.Data["Body"] != "raw notification text here" {
		t.Errorf("expected Body in data, got '%v'", msg.Data["Body"])
	}
}