package starnet

import (
	"bytes"
	"encoding/json"
	"io"
	"net/http"
	"net/http/httptest"
	"strings"
	"testing"
)

func TestRequestBodyBytes(t *testing.T) {
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		body, _ := io.ReadAll(r.Body)
		w.Write(body)
	}))
	defer server.Close()

	testData := []byte("test data")
	req := NewSimpleRequest(server.URL, "POST").SetBody(testData)

	resp, err := req.Do()
	if err != nil {
		t.Fatalf("Do() error: %v", err)
	}
	defer resp.Close()

	body, _ := resp.Body().Bytes()
	if !bytes.Equal(body, testData) {
		t.Errorf("Body = %v; want %v", body, testData)
	}
}

func TestRequestBodyString(t *testing.T) {
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		body, _ := io.ReadAll(r.Body)
		w.Write(body)
	}))
	defer server.Close()

	testData := "test string data"
	req := NewSimpleRequest(server.URL, "POST").SetBodyString(testData)

	resp, err := req.Do()
	if err != nil {
		t.Fatalf("Do() error: %v", err)
	}
	defer resp.Close()

	body, _ := resp.Body().String()
	if body != testData {
		t.Errorf("Body = %v; want %v", body, testData)
	}
}

func TestRequestBodyReader(t *testing.T) {
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		body, _ := io.ReadAll(r.Body)
		w.Write(body)
	}))
	defer server.Close()

	testData := "test reader data"
	reader := strings.NewReader(testData)
	req := NewSimpleRequest(server.URL, "POST").SetBodyReader(reader)

	resp, err := req.Do()
	if err != nil {
		t.Fatalf("Do() error: %v", err)
	}
	defer resp.Close()

	body, _ := resp.Body().String()
	if body != testData {
		t.Errorf("Body = %v; want %v", body, testData)
	}
}

func TestRequestJSON(t *testing.T) {
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.Header.Get("Content-Type") != ContentTypeJSON {
			t.Errorf("Content-Type = %v; want %v", r.Header.Get("Content-Type"), ContentTypeJSON)
		}

		var data map[string]string
		json.NewDecoder(r.Body).Decode(&data)
		json.NewEncoder(w).Encode(data)
	}))
	defer server.Close()

	testData := map[string]string{
		"name":  "John",
		"email": "john@example.com",
	}

	req := NewSimpleRequest(server.URL, "POST").SetJSON(testData)

	resp, err := req.Do()
	if err != nil {
		t.Fatalf("Do() error: %v", err)
	}
	defer resp.Close()

	var result map[string]string
	resp.Body().JSON(&result)

	if result["name"] != testData["name"] {
		t.Errorf("name = %v; want %v", result["name"], testData["name"])
	}
}

func TestRequestFormData(t *testing.T) {
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		r.ParseForm()
		data := make(map[string]string)
		for k, v := range r.Form {
			if len(v) > 0 {
				data[k] = v[0]
			}
		}
		json.NewEncoder(w).Encode(data)
	}))
	defer server.Close()

	req := NewSimpleRequest(server.URL, "POST").
		AddFormData("name", "John").
		AddFormData("email", "john@example.com")

	resp, err := req.Do()
	if err != nil {
		t.Fatalf("Do() error: %v", err)
	}
	defer resp.Close()

	var result map[string]string
	resp.Body().JSON(&result)

	if result["name"] != "John" {
		t.Errorf("name = %v; want John", result["name"])
	}
	if result["email"] != "john@example.com" {
		t.Errorf("email = %v; want john@example.com", result["email"])
	}
}