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app.go
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app.go
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package main
import (
"encoding/json"
"net/http"
"time"
"github.com/go-chi/chi"
"github.com/go-chi/chi/middleware"
"github.com/go-chi/cors"
"github.com/khanhtc1202/boogeyman/internal/controller"
"github.com/khanhtc1202/boogeyman/internal/domain"
"github.com/khanhtc1202/boogeyman/internal/gateway/repository"
"github.com/khanhtc1202/boogeyman/internal/gateway/service"
"github.com/khanhtc1202/boogeyman/pkg/io"
)
func main() {
restCORS := cors.New(cors.Options{
AllowedOrigins: []string{"https://search.khanhtc.me"},
AllowedMethods: []string{"GET"},
AllowedHeaders: []string{"Accept", "Authorization", "Content-Type", "X-CSRF-Token"},
ExposedHeaders: []string{"Link"},
AllowCredentials: true,
MaxAge: 300,
})
r := chi.NewRouter()
r.Use(restCORS.Handler)
r.Use(middleware.RealIP)
r.Use(middleware.Logger)
r.Use(middleware.Recoverer)
r.Use(middleware.Timeout(10 * time.Second))
r.Get("/ping", pingHandle)
r.Get("/search", searchQueryHandle)
http.ListenAndServe(":3000", r)
}
func pingHandle(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("pong"))
}
func searchQueryHandle(w http.ResponseWriter, r *http.Request) {
searchStrategiesRepo := repository.SearchStrategies()
searchEnginesRepo := repository.SearchEngines(service.EmptyCollectorList())
textPresenter := NewWebPresenter(w)
infoSearchCtl := controller.NewInfoSearch(searchStrategiesRepo, searchEnginesRepo, textPresenter)
queryString := r.URL.Query().Get("q")
engine := r.URL.Query().Get("e")
strategy := r.URL.Query().Get("s")
err := infoSearchCtl.Search(queryString, engine, strategy)
if err != nil {
io.Errorln(err)
}
}
type resultResponse struct {
Results []queryResultResponse `json:"results"`
}
func ResultResponse(results *domain.QueryResults) *resultResponse {
var rs []queryResultResponse
for _, r := range *results {
rs = append(rs, QueryResultResponse(r.(*domain.UrlBaseResultItem)))
}
return &resultResponse{
Results: rs,
}
}
type queryResultResponse struct {
Title string `json:"title"`
Url string `json:"url"`
Description string `json:"description"`
}
func QueryResultResponse(r *domain.UrlBaseResultItem) queryResultResponse {
return queryResultResponse{
Title: r.GetTitleString(),
Url: r.GetUrl(),
Description: r.GetDescription(),
}
}
type WebPresenter struct {
writer http.ResponseWriter
}
func NewWebPresenter(w http.ResponseWriter) *WebPresenter {
return &WebPresenter{
writer: w,
}
}
func (w *WebPresenter) PrintList(results *domain.QueryResults) error {
response := ResultResponse(results)
j, err := json.Marshal(response)
if err != nil {
return err
}
w.writer.Write(j)
return nil
}