package service

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

	"github.com/stretchr/testify/require"
)

func TestPrepareOpsRequestBodyForQueue_EmptyBody(t *testing.T) {
	requestBodyJSON, truncated, requestBodyBytes := PrepareOpsRequestBodyForQueue(nil)
	require.Nil(t, requestBodyJSON)
	require.False(t, truncated)
	require.Nil(t, requestBodyBytes)
}

func TestPrepareOpsRequestBodyForQueue_InvalidJSON(t *testing.T) {
	raw := []byte("{invalid-json")
	requestBodyJSON, truncated, requestBodyBytes := PrepareOpsRequestBodyForQueue(raw)
	require.Nil(t, requestBodyJSON)
	require.False(t, truncated)
	require.NotNil(t, requestBodyBytes)
	require.Equal(t, len(raw), *requestBodyBytes)
}

func TestPrepareOpsRequestBodyForQueue_RedactSensitiveFields(t *testing.T) {
	raw := []byte(`{
		"model":"claude-3-5-sonnet-20241022",
		"api_key":"sk-test-123",
		"headers":{"authorization":"Bearer secret-token"},
		"messages":[{"role":"user","content":"hello"}]
	}`)

	requestBodyJSON, truncated, requestBodyBytes := PrepareOpsRequestBodyForQueue(raw)
	require.NotNil(t, requestBodyJSON)
	require.NotNil(t, requestBodyBytes)
	require.False(t, truncated)
	require.Equal(t, len(raw), *requestBodyBytes)

	var body map[string]any
	require.NoError(t, json.Unmarshal([]byte(*requestBodyJSON), &body))
	require.Equal(t, "[REDACTED]", body["api_key"])
	headers, ok := body["headers"].(map[string]any)
	require.True(t, ok)
	require.Equal(t, "[REDACTED]", headers["authorization"])
}

func TestPrepareOpsRequestBodyForQueue_LargeBodyTruncated(t *testing.T) {
	largeMsg := strings.Repeat("x", opsMaxStoredRequestBodyBytes*2)
	raw := []byte(`{"model":"claude-3-5-sonnet-20241022","messages":[{"role":"user","content":"` + largeMsg + `"}]}`)

	requestBodyJSON, truncated, requestBodyBytes := PrepareOpsRequestBodyForQueue(raw)
	require.NotNil(t, requestBodyJSON)
	require.NotNil(t, requestBodyBytes)
	require.True(t, truncated)
	require.Equal(t, len(raw), *requestBodyBytes)
	require.LessOrEqual(t, len(*requestBodyJSON), opsMaxStoredRequestBodyBytes)
	require.Contains(t, *requestBodyJSON, "request_body_truncated")
}