package service

import (
	"context"
	"net/http"
	"net/http/httptest"
	"testing"
)

func TestWeatherServiceConfigured(t *testing.T) {
	if NewWeatherService("", "").Configured() {
		t.Error("空配置应返回 false")
	}
	if !NewWeatherService("key", "101010100").Configured() {
		t.Error("有配置应返回 true")
	}
}

func TestWeatherFetchNow(t *testing.T) {
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.URL.Path != "/v7/weather/now" {
			t.Errorf("path = %s", r.URL.Path)
		}
		if r.URL.Query().Get("key") != "key1" || r.URL.Query().Get("location") == "" {
			t.Errorf("参数不正确: %v", r.URL.Query())
		}
		_, _ = w.Write([]byte(`{"code":"200","now":{"temp":"28","text":"小雨","humidity":"85"}}`))
	}))
	defer srv.Close()

	s := NewWeatherService("key1", "116.41,39.92")
	s.baseURL = srv.URL
	now, err := s.FetchNow(context.Background())
	if err != nil {
		t.Fatalf("FetchNow 错误: %v", err)
	}
	if now.Temp != 28 || now.Humidity != 85 || now.Text != "小雨" {
		t.Errorf("解析结果不正确: %+v", now)
	}
}

func TestWeatherFetchDaily(t *testing.T) {
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		_, _ = w.Write([]byte(`{"code":"200","daily":[{"fxDate":"2026-08-12","textDay":"小雨","textNight":"阴","tempMax":"30","tempMin":"24","humidity":"78"}]}`))
	}))
	defer srv.Close()

	s := NewWeatherService("key1", "101010100")
	s.baseURL = srv.URL
	daily, err := s.FetchDaily(context.Background())
	if err != nil {
		t.Fatalf("FetchDaily 错误: %v", err)
	}
	if len(daily) != 1 || daily[0].TextDay != "小雨" || daily[0].TempMax != 30 {
		t.Errorf("解析结果不正确: %+v", daily)
	}
}

func TestWeatherFetchErrorCode(t *testing.T) {
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		_, _ = w.Write([]byte(`{"code":"401","message":"invalid key"}`))
	}))
	defer srv.Close()

	s := NewWeatherService("bad", "101010100")
	s.baseURL = srv.URL
	if _, err := s.FetchNow(context.Background()); err == nil {
		t.Error("code!=200 应返回错误")
	}
}