/
app.go
513 lines (391 loc) · 12.3 KB
/
app.go
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package main
import (
"database/sql"
"encoding/json"
"fmt"
"html/template"
"log"
"strconv"
"net/http"
"github.com/gorilla/mux"
_ "github.com/lib/pq"
)
// App : application
type App struct {
Router *mux.Router
DB *sql.DB
}
// Create Table Query
// search time should be date, but since I control the inputted data, text is fine.
const prodTable = `CREATE TABLE IF NOT EXISTS jobinfo
(
id SERIAL,
numjobs INT,
avgkeywords NUMERIC(5,2) NOT NULL DEFAULT 0.00,
avgskills NUMERIC(5,2) NOT NULL DEFAULT 0.00,
city TEXT NOT NULL,
searchterm TEXT NOT NULL,
searchtime DATE NOT NULL,
CONSTRAINT jobinfo_pkey PRIMARY KEY (id)
)`
// coop postings and career center postings, not updated lol
const uvicJobQuery = `CREATE TABLE IF NOT EXISTS uvic
(
id SERIAL,
jobid INT,
jobtitle TEXT NOT NULL,
org TEXT NOT NULL,
pos TEXT NOT NULL ,
loc TEXT NOT NULL,
numapps INT,
deadline DATE NOT NULL,
coop BOOL DEFAULT TRUE,
CONSTRAINT uvic_pkey PRIMARY KEY (id)
)`
// create table for document if it doesn't exist
// SCHEMA
// id Serial
// public_id Cloudinary ID
// doc_name document name
// doc_tag class name
// save_folder where the file is saved in a folder
const docQuery = `CREATE TABLE IF NOT EXISTS docs
(
id SERIAL,
public_id INT,
doc_name TEXT NOT NULL,
doc_tag TEXT NOT NULL,
CONSTRAINT docs_pkey PRIMARY KEY (id)
)`
func respondWithJSON(w http.ResponseWriter, code int, payload interface{}) {
response, _ := json.Marshal(payload)
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(code)
w.Write(response)
}
func respondWithError(w http.ResponseWriter, code int, message string) {
respondWithJSON(w, code, map[string]string{"error": message})
}
// Indeed Job Postings
// get a job search item
func (app *App) getJobSearchItem(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
id, err := strconv.Atoi(vars["id"])
if err != nil {
respondWithError(w, http.StatusBadRequest, "Invalid jobsearchitem ID")
return
}
j := jobsearchitem{ID: id}
if err := j.getJobSearchItem(app.DB); err != nil {
switch err {
case sql.ErrNoRows:
respondWithError(w, http.StatusNotFound, "Job Search Item not found")
default:
respondWithError(w, http.StatusInternalServerError, err.Error())
}
return
}
respondWithJSON(w, http.StatusOK, j)
}
func (app *App) getAllJobs(w http.ResponseWriter, r *http.Request) {
jobSearchItems, err := getAllJobsSearch(app.DB)
if err != nil {
respondWithError(w, http.StatusInternalServerError, err.Error())
return
}
respondWithJSON(w, http.StatusOK, jobSearchItems)
}
func (app *App) getJobSearchItems(w http.ResponseWriter, r *http.Request) {
count, _ := strconv.Atoi(r.FormValue("count"))
start, _ := strconv.Atoi(r.FormValue("start"))
//if count < 1 || count > 10 {
// count = 10
//}
if start < 0 {
start = 0
}
jobSearchItems, err := getJobSearchItems(app.DB, start, count)
if err != nil {
respondWithError(w, http.StatusInternalServerError, err.Error())
return
}
respondWithJSON(w, http.StatusOK, jobSearchItems)
}
func (app *App) createJobSearchItem(w http.ResponseWriter, r *http.Request) {
var j jobsearchitem
decoder := json.NewDecoder(r.Body)
fmt.Printf("%v\n", r.Body)
if err := decoder.Decode(&j); err != nil {
respondWithError(w, http.StatusBadRequest, "Invalid request payload")
return
}
// defer : will be executed when the scope ends
defer r.Body.Close()
if err := j.createJobSearchItem(app.DB); err != nil {
respondWithError(w, http.StatusInternalServerError, err.Error())
return
}
respondWithJSON(w, http.StatusCreated, j)
}
func (app *App) updateJobSearchItem(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
id, err := strconv.Atoi(vars["id"])
if err != nil {
respondWithError(w, http.StatusBadRequest, "Invalid product ID")
return
}
var j jobsearchitem
decoder := json.NewDecoder(r.Body)
if err := decoder.Decode(&j); err != nil {
respondWithError(w, http.StatusBadGateway, "Invalid request payload")
return
}
defer r.Body.Close()
j.ID = id
if err := j.updateJobSearchItem(app.DB); err != nil {
respondWithError(w, http.StatusInternalServerError, err.Error())
return
}
respondWithJSON(w, http.StatusOK, j)
}
func (app *App) deleteJobSearchItem(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
id, err := strconv.Atoi(vars["id"])
if err != nil {
respondWithError(w, http.StatusBadRequest, "Invalid jobsearchitem ID")
return
}
j := jobsearchitem{ID: id}
if err := j.deleteJobSearchItem(app.DB); err != nil {
respondWithError(w, http.StatusInternalServerError, err.Error())
return
}
respondWithJSON(w, http.StatusOK, map[string]string{"result": "success"})
}
func (app *App) indexHandler(w http.ResponseWriter, r *http.Request) {
entry := "client/dist/index.html"
// open and parse a template text file
// TODO: Refactor and clean
if tpl, err := template.New("index").ParseFiles(entry); err != nil {
log.Fatal(err)
} else {
tpl.Lookup("index").ExecuteTemplate(w, "index.html", nil)
}
}
// UVIC Routes
func (app *App) getAllUvic(w http.ResponseWriter, r *http.Request) {
//vars := mux.Vars(r)
//_, err := strconv.Atoi(vars["id"])
//if err != nil {
// respondWithError(w, http.StatusBadRequest, "Invalid Uvic ID")
// return
//}
//j := uvicjob{ID: id}
//if err := j.deleteJobSearchItem(app.DB); err != nil {
// respondWithError(w, http.StatusInternalServerError, err.Error())
// return
//}
//respondWithJSON(w, http.StatusOK, map[string]string{"result": "success"})
}
func (app *App) getUvic(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
_, err := strconv.Atoi(vars["id"])
if err != nil {
respondWithError(w, http.StatusBadRequest, "Invalid jobsearchitem ID")
return
}
//j := jobsearchitem{ID: id}
//if err := j.deleteJobSearchItem(app.DB); err != nil {
// respondWithError(w, http.StatusInternalServerError, err.Error())
// return
//}
respondWithJSON(w, http.StatusOK, map[string]string{"result": "success"})
}
func (app *App) createUvic(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
_, err := strconv.Atoi(vars["id"])
if err != nil {
respondWithError(w, http.StatusBadRequest, "Invalid jobsearchitem ID")
return
}
//j := jobsearchitem{ID: id}
//if err := j.deleteJobSearchItem(app.DB); err != nil {
// respondWithError(w, http.StatusInternalServerError, err.Error())
// return
//}
respondWithJSON(w, http.StatusOK, map[string]string{"result": "success"})
}
func (app *App) getUvicItems(w http.ResponseWriter, r *http.Request) {
count, _ := strconv.Atoi(r.FormValue("count"))
start, _ := strconv.Atoi(r.FormValue("start"))
//if count < 1 || count > 10 {
// count = 10
//}
if start < 0 {
start = 0
}
uvicItems, err := getUvicItems(app.DB, start, count)
if err != nil {
respondWithError(w, http.StatusInternalServerError, err.Error())
return
}
respondWithJSON(w, http.StatusOK, uvicItems)
}
func (app *App) updateUvic(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
id, err := strconv.Atoi(vars["id"])
if err != nil {
respondWithError(w, http.StatusBadRequest, "Invalid jobsearchitem ID")
return
}
j := uvicjob{ID: id}
if err := j.updateUvic(app.DB); err != nil {
respondWithError(w, http.StatusInternalServerError, err.Error())
return
}
respondWithJSON(w, http.StatusOK, map[string]string{"result": "success"})
}
func (app *App) deleteUvic(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
id, err := strconv.Atoi(vars["id"])
if err != nil {
respondWithError(w, http.StatusBadRequest, "Invalid uvicjob ID")
return
}
j := uvicjob{ID: id}
if err := j.deleteUvic(app.DB); err != nil {
respondWithError(w, http.StatusInternalServerError, err.Error())
return
}
respondWithJSON(w, http.StatusOK, map[string]string{"result": "success"})
}
// get docs first
func (app *App) getAllDocs(w http.ResponseWriter, r *http.Request) {
docItems, err := getAllDocsDB(app.DB)
if err != nil {
respondWithError(w, http.StatusInternalServerError, err.Error())
return
}
respondWithJSON(w, http.StatusOK, docItems)
}
func (app *App) getDocs(w http.ResponseWriter, r *http.Request) {
// count, _ := strconv.Atoi(r.FormValue("count"))
// start, _ := strconv.Atoi(r.FormValue("start"))
//if count < 1 || count > 10 {
// count = 10
//}
// if start < 0 {
// start = 0
// }
// docItems, err := getDocItem(app.DB, start, count)
// if err != nil {
// respondWithError(w, http.StatusInternalServerError, err.Error())
// return
// }
// respondWithJSON(w, http.StatusOK, docItems)
}
func (app *App) createDoc(w http.ResponseWriter, r *http.Request) {
var j docs
decoder := json.NewDecoder(r.Body)
fmt.Printf("%v\n", r.Body)
if err := decoder.Decode(&j); err != nil {
respondWithError(w, http.StatusBadRequest, "Invalid request payload")
return
}
// defer : will be executed when the scope ends
defer r.Body.Close()
if err := j.createDoc(app.DB); err != nil {
respondWithError(w, http.StatusInternalServerError, err.Error())
return
}
respondWithJSON(w, http.StatusCreated, j)
}
func (app *App) updateDoc(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
id, err := strconv.Atoi(vars["id"])
if err != nil {
respondWithError(w, http.StatusBadRequest, "Invalid product ID")
return
}
var j docs
decoder := json.NewDecoder(r.Body)
if err := decoder.Decode(&j); err != nil {
respondWithError(w, http.StatusBadGateway, "Invalid request payload")
return
}
defer r.Body.Close()
j.ID = id
if err := j.updateDoc(app.DB); err != nil {
respondWithError(w, http.StatusInternalServerError, err.Error())
return
}
respondWithJSON(w, http.StatusOK, j)
}
func (app *App) deleteDoc(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
id, err := strconv.Atoi(vars["id"])
if err != nil {
respondWithError(w, http.StatusBadRequest, "Invalid jobsearchitem ID")
return
}
j := docs{ID: id}
if err := j.deleteDoc(app.DB); err != nil {
respondWithError(w, http.StatusInternalServerError, err.Error())
return
}
respondWithJSON(w, http.StatusOK, map[string]string{"result": "success"})
}
func (app *App) initializeRoutes() {
static := "./client/dist/static/"
api := app.Router.PathPrefix("/api/").Subrouter()
// indeed postings
api.HandleFunc("/jobs", app.getAllJobs).Methods("GET")
api.HandleFunc("/jobs/{start:[0-9]+}/{count:[0-9]+}", app.getJobSearchItems).Methods("GET")
api.HandleFunc("/jobs", app.createJobSearchItem).Methods("POST")
api.HandleFunc("/jobs/{id:[0-9]+}", app.getJobSearchItem).Methods("GET")
api.HandleFunc("/jobs/{id:[0-9]+}", app.updateJobSearchItem).Methods("PUT")
api.HandleFunc("/jobs/{id:[0-9]+}", app.deleteJobSearchItem).Methods("DELETE")
// uvic postings
api.HandleFunc("/uvic", app.getAllUvic).Methods("GET")
api.HandleFunc("/uvic/{start:[0-9]+}/{count:[0-9]+}", app.getUvicItems).Methods("GET")
api.HandleFunc("/uvic", app.createUvic).Methods("POST")
api.HandleFunc("/uvic/{id:[0-9]+}", app.getUvic).Methods("GET")
api.HandleFunc("/uvic/{id:[0-9]+}", app.updateUvic).Methods("PUT")
api.HandleFunc("/uvic/{id:[0-9]+}", app.deleteUvic).Methods("DELETE")
// coop postings
api.HandleFunc("/docs", app.getAllDocs).Methods("GET")
api.HandleFunc("/docs/{start:[0-9]+}/{count:[0-9]+}", app.getDocs).Methods("GET")
api.HandleFunc("/docs", app.createDoc).Methods("POST")
// api.HandleFunc("/docs/{id:[0-9]+}", app.getDoc).Methods("GET")
api.HandleFunc("/docs/{id:[0-9]+}", app.updateDoc).Methods("PUT")
api.HandleFunc("/docs/{id:[0-9]+}", app.deleteDoc).Methods("DELETE")
// serving front-end
app.Router.PathPrefix("/dist/").Handler(http.FileServer(http.Dir(static)))
app.Router.PathPrefix("/static/").Handler(http.StripPrefix("/static/", http.FileServer(http.Dir(static))))
app.Router.HandleFunc("/", app.indexHandler).Methods("GET")
}
// Initialize : connects to postgresql
func (app *App) Initialize(DATABASE_URL string) {
var err error
app.DB, err = sql.Open("postgres", DATABASE_URL)
if err != nil {
log.Fatal(err)
}
// same as tableCreationQuery, could just make the app reload all the time
if _, err := app.DB.Exec(prodTable); err != nil {
log.Fatal(err)
}
if _, err := app.DB.Exec(uvicJobQuery); err != nil {
log.Fatal(err)
}
// co-op table
if _, err := app.DB.Exec(docQuery); err != nil {
log.Fatal(err)
}
app.Router = mux.NewRouter()
app.initializeRoutes()
}
// Run : runs the app
func (app *App) Run(addr string) {
log.Fatal(http.ListenAndServe(addr, app.Router))
}