package main

import (
    "encoding/json"
    "fmt"
    "net/http"

    "<a style='color:#f60; text-decoration:underline;' href="https://www.php.cn/zt/15841.html" target="_blank">git</a>hub.com/gorilla/mux"
)

type Person struct {
    ID   int    `json:"id"`
    Name string `json:"name"`
}

var people []Person

func main() {
    router := mux.NewRouter()
    router.HandleFunc("/people", getPeople).Methods("GET")
    router.HandleFunc("/people", createPerson).Methods("POST")
    router.HandleFunc("/people/{id}", getPerson).Methods("GET")
    router.HandleFunc("/people/{id}", updatePerson).Methods("PUT")
    router.HandleFunc("/people/{id}", deletePerson).Methods("DELETE")
    http.ListenAndServe(":8080", router)
}

func getPeople(w http.ResponseWriter, r *http.Request) {
    json.NewEncoder(w).Encode(people)
}

func createPerson(w http.ResponseWriter, r *http.Request) {
    var person Person
    json.NewDecoder(r.Body).Decode(&person)
    people = append(people, person)
    json.NewEncoder(w).Encode(person)
}

func getPerson(w http.ResponseWriter, r *http.Request) {
    params := mux.Vars(r)
    id := params["id"]
    for _, person := range people {
        if person.ID == id {
            json.NewEncoder(w).Encode(person)
            return
        }
    }
    http.Error(w, "Not found", 404)
}

func updatePerson(w http.ResponseWriter, r *http.Request) {
    params := mux.Vars(r)
    id := params["id"]
    var person Person
    json.NewDecoder(r.Body).Decode(&person)
    for i, p := range people {
        if p.ID == id {
            people[i] = person
            json.NewEncoder(w).Encode(person)
            return
        }
    }
    http.Error(w, "Not found", 404)
}

func deletePerson(w http.ResponseWriter, r *http.Request) {
    params := mux.Vars(r)
    id := params["id"]
    for i, person := range people {
        if person.ID == id {
            people = append(people[:i], people[i 1:]...)
            w.WriteHeader(http.StatusNoContent)
            return
        }
    }
    http.Error(w, "Not found", 404)
}