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update for ical create process, new endpoints for frontend

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This commit is contained in:
Elmar Kresse
2023-09-15 04:42:14 +02:00
parent eeb84db0cc
commit e1d143908a
10 changed files with 250 additions and 47 deletions
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27
addRoute.go
View File

@ -73,12 +73,10 @@ func addRoutes(app *pocketbase.PocketBase) {
app.OnBeforeServe().Add(func(e *core.ServeEvent) error {
_, err := e.Router.AddRoute(echo.Route{
Method: http.MethodGet,
Path: "/api/feedURL",
Method: http.MethodPost,
Path: "/api/createFeed",
Handler: func(c echo.Context) error {
course := c.QueryParam("course")
semester := c.QueryParam("semester")
return ical.FeedURL(c, app, course, semester)
return ical.CreateIndividualFeed(c, app)
},
Middlewares: []echo.MiddlewareFunc{
apis.ActivityLogger(app),
@ -111,7 +109,7 @@ func addRoutes(app *pocketbase.PocketBase) {
app.OnBeforeServe().Add(func(e *core.ServeEvent) error {
_, err := e.Router.AddRoute(echo.Route{
Method: http.MethodGet,
Path: "/api/modules",
Path: "/api/course/modules",
Handler: func(c echo.Context) error {
course := c.QueryParam("course")
semester := c.QueryParam("semester")
@ -127,6 +125,23 @@ func addRoutes(app *pocketbase.PocketBase) {
return nil
})
app.OnBeforeServe().Add(func(e *core.ServeEvent) error {
_, err := e.Router.AddRoute(echo.Route{
Method: http.MethodGet,
Path: "/api/modules",
Handler: func(c echo.Context) error {
return events.GetAllModulesDistinct(app, c)
},
Middlewares: []echo.MiddlewareFunc{
apis.ActivityLogger(app),
},
})
if err != nil {
return err
}
return nil
})
app.OnBeforeServe().Add(func(e *core.ServeEvent) error {
_, err := e.Router.AddRoute(echo.Route{
Method: http.MethodGet,

8
model/feedModel.go Normal file
View File

@ -0,0 +1,8 @@
package model
type Feed struct {
Id string `db:"id" json:"id"`
Modules string `db:"modules" json:"modules"`
Created string `db:"created" json:"created"`
Updated string `db:"updated" json:"updated"`
}

23
pb_schema.json
View File

@ -304,5 +304,28 @@
"updateRule": null,
"deleteRule": null,
"options": {}
},
{
"id": "d65h4wh7zk13gxp",
"name": "feeds",
"type": "base",
"system": false,
"schema": [
{
"id": "cowxjfmc",
"name": "modules",
"type": "json",
"system": false,
"required": true,
"options": {}
}
],
"indexes": [],
"listRule": null,
"viewRule": null,
"createRule": null,
"updateRule": null,
"deleteRule": null,
"options": {}
}
]

54
service/db/dbEvents.go
View File

@ -101,7 +101,7 @@ func (e Events) EmitICal() goics.Componenter {
return c
}
// GetPlanForCourseAndSemester gets all events for specific course and semester
// gets all events for specific course and semester
// TODO add filter for year
func GetPlanForCourseAndSemester(app *pocketbase.PocketBase, course string, semester string) Events {
var events Events
@ -114,6 +114,29 @@ func GetPlanForCourseAndSemester(app *pocketbase.PocketBase, course string, seme
return events
}
func GetPlanForModules(app *pocketbase.PocketBase, modules []string) Events {
// build query string with name equals elements in modules for dbx query
var queryString string
for i, module := range modules {
if i == 0 {
queryString = "Name = '" + module + "'"
} else {
queryString = queryString + " OR Name = '" + module + "'"
}
}
var events Events
// get all events from event records in the events collection
err := app.Dao().DB().Select("*").From("events").Where(dbx.NewExp(queryString)).All(&events)
if err != nil {
print("Error while getting events from database: ", err)
return nil
}
return events
}
func GetAllModulesForCourse(app *pocketbase.PocketBase, course string, semester string) ([]string, error) {
var events []struct {
Name string `db:"Name" json:"Name"`
@ -133,3 +156,32 @@ func GetAllModulesForCourse(app *pocketbase.PocketBase, course string, semester
}
return eventArray, nil
}
func GetAllModulesDistinct(app *pocketbase.PocketBase) ([]struct {
Name string
Course string
}, error) {
var events []struct {
Name string `db:"Name" json:"Name"`
Course string `db:"course" json:"course"`
}
var eventArray []struct {
Name string
Course string
}
err := app.Dao().DB().Select("Name", "course").From("events").Distinct(true).All(&events)
if err != nil {
print("Error while getting events from database: ", err)
return eventArray, err
}
for _, event := range events {
eventArray = append(eventArray, struct {
Name string
Course string
}{event.Name, event.Course})
}
return eventArray, nil
}

28
service/db/dbFeeds.go Normal file
View File

@ -0,0 +1,28 @@
package db
import (
"github.com/pocketbase/dbx"
"github.com/pocketbase/pocketbase"
"github.com/pocketbase/pocketbase/models"
"htwk-planner/model"
)
func SaveFeed(feed model.Feed, collection *models.Collection, app *pocketbase.PocketBase) (*models.Record, error) {
record := models.NewRecord(collection)
record.Set("modules", feed.Modules)
err := app.Dao().SaveRecord(record)
if err != nil {
return nil, err
}
return record, nil
}
func FindFeedByToken(token string, app *pocketbase.PocketBase) (*model.Feed, error) {
var feed model.Feed
err := app.Dao().DB().Select("*").From("feeds").Where(dbx.NewExp("id = {:id}", dbx.Params{"id": token})).One(&feed)
if err != nil {
return nil, err
}
return &feed, err
}

11
service/db/dbFunctions.go Normal file
View File

@ -0,0 +1,11 @@
package db
import (
"github.com/pocketbase/pocketbase"
"github.com/pocketbase/pocketbase/models"
)
func FindCollection(app *pocketbase.PocketBase, collectionName string) (*models.Collection, error) {
collection, dbError := app.Dao().FindCollectionByNameOrId(collectionName)
return collection, dbError
}

35
service/events/eventService.go
View File

@ -10,21 +10,32 @@ import (
func GetModulesForCourseDistinct(app *pocketbase.PocketBase, c echo.Context, course string, semester string) error {
modules, err := db.GetAllModulesForCourse(app, course, semester)
replaceEmptyEntry(modules, "Sonderveranstaltungen")
replaceEmptyEntryInStringArray(modules, "Sonderveranstaltungen")
if err != nil {
return c.JSON(400, err)
} else {
return c.JSON(200, modules)
}
}
func replaceEmptyEntry(courses []string, replacement string) {
func replaceEmptyEntryInStringArray(modules []string, replacement string) {
//replace empty string with "Sonderveranstaltungen"
for i, course := range courses {
if checkIfOnlyWhitespace(course) {
courses[i] = replacement
for i, module := range modules {
if checkIfOnlyWhitespace(module) {
modules[i] = replacement
}
}
}
func replaceEmptyEntry(modules []struct {
Name string
Course string
}, replacement string) {
//replace empty string with "Sonderveranstaltungen"
for i, module := range modules {
if checkIfOnlyWhitespace(module.Name) {
modules[i].Name = replacement
}
}
}
@ -38,3 +49,15 @@ func checkIfOnlyWhitespace(word string) bool {
}
return true
}
func GetAllModulesDistinct(app *pocketbase.PocketBase, c echo.Context) error {
modules, err := db.GetAllModulesDistinct(app)
replaceEmptyEntry(modules, "Sonderveranstaltungen")
if err != nil {
return c.JSON(400, err)
} else {
return c.JSON(200, modules)
}
}

8
service/fetch/fetchSeminarEventService.go
View File

@ -5,7 +5,6 @@ import (
"github.com/labstack/echo/v5"
"github.com/pocketbase/pocketbase"
"github.com/pocketbase/pocketbase/apis"
"github.com/pocketbase/pocketbase/models"
"golang.org/x/net/html"
"htwk-planner/model"
"htwk-planner/service/date"
@ -24,7 +23,7 @@ func GetSeminarEvents(c echo.Context, app *pocketbase.PocketBase) error {
seminarGroups := GetSeminarGroupsEventsFromHTML(seminarGroupsLabel)
collection, dbError := findCollection(app, "events")
collection, dbError := db.FindCollection(app, "events")
if dbError != nil {
return apis.NewNotFoundError("Collection not found", dbError)
}
@ -56,11 +55,6 @@ func GetSeminarGroupsEventsFromHTML(seminarGroupsLabel []string) []model.Seminar
return seminarGroups
}
func findCollection(app *pocketbase.PocketBase, collectionName string) (*models.Collection, error) {
collection, dbError := app.Dao().FindCollectionByNameOrId(collectionName)
return collection, dbError
}
func parseSeminarGroup(result string) model.SeminarGroup {
doc, err := html.Parse(strings.NewReader(result))
if err != nil {

37
service/fetch/fetchSeminarGroupService.go
View File

@ -12,8 +12,8 @@ import (
"net/http"
)
func getSeminarHTML() (string, error) {
url := "https://stundenplan.htwk-leipzig.de/stundenplan/xml/public/semgrp_ss.xml"
func getSeminarHTML(semester string) (string, error) {
url := "https://stundenplan.htwk-leipzig.de/stundenplan/xml/public/semgrp_" + semester + ".xml"
// Send GET request
response, err := http.Get(url)
@ -41,14 +41,18 @@ func getSeminarHTML() (string, error) {
}
func SeminarGroups(c echo.Context, app *pocketbase.PocketBase) error {
result, _ := getSeminarHTML()
var groups []model.SeminarGroup
groups = parseSeminarGroups(result)
resultSummer, _ := getSeminarHTML("ss")
resultWinter, _ := getSeminarHTML("ws")
collection, dbError := findCollection(app, "groups")
groups = parseSeminarGroups(resultSummer)
groups = append(groups, parseSeminarGroups(resultWinter)...)
// filter duplicates
groups = removeDuplicates(groups)
collection, dbError := db.FindCollection(app, "groups")
if dbError != nil {
return apis.NewNotFoundError("Collection not found", dbError)
}
@ -61,6 +65,25 @@ func SeminarGroups(c echo.Context, app *pocketbase.PocketBase) error {
return c.JSON(http.StatusOK, groups)
}
func removeDuplicates(groups []model.SeminarGroup) []model.SeminarGroup {
var uniqueGroups []model.SeminarGroup
for _, group := range groups {
if !contains(uniqueGroups, group) {
uniqueGroups = append(uniqueGroups, group)
}
}
return uniqueGroups
}
func contains(groups []model.SeminarGroup, group model.SeminarGroup) bool {
for _, a := range groups {
if a.Course == group.Course {
return true
}
}
return false
}
func parseSeminarGroups(result string) []model.SeminarGroup {
var studium model.Studium

66
service/ical/ical.go
View File

@ -3,41 +3,37 @@ package ical
import (
"bytes"
"crypto/rand"
"encoding/json"
"fmt"
"github.com/jordic/goics"
"github.com/labstack/echo/v5"
"github.com/pocketbase/pocketbase"
"github.com/pocketbase/pocketbase/apis"
"htwk-planner/model"
"htwk-planner/service/db"
"io"
"net/http"
"time"
)
const expirationTime = 5 * time.Minute
var cache = make(map[string]*model.FeedModel)
func FeedURL(c echo.Context, app *pocketbase.PocketBase, course string, semester string) error {
token := randomToken(20)
_, err := createFeedForToken(app, token, course, semester)
if err != nil {
return err
}
return c.JSON(http.StatusOK, fmt.Sprintf("FeedToken: %s, Course: %s, Semester: %s", token, course, semester))
}
func Feed(c echo.Context, app *pocketbase.PocketBase, token string) error {
layout := "2006-01-02 15:04:05 -0700 MST"
var result string
var responseWriter = c.Response().Writer
feed, ok := cache[token]
if !ok || feed == nil {
return c.JSON(http.StatusNotFound, "No FeedModel for this Token")
feed, err := db.FindFeedByToken(token, app)
if feed == nil && err != nil {
return c.JSON(http.StatusNotFound, err)
}
result = feed.Content
if feed.ExpiresAt.Before(time.Now()) {
newFeed, err := createFeedForToken(app, token, feed.Course, feed.Semester)
created, _ := time.Parse(layout, feed.Created)
var modules []string
_ = json.Unmarshal([]byte(feed.Modules), &modules)
if created.Add(time.Hour * 265).Before(time.Now()) {
newFeed, err := createFeedForToken(app, modules)
if err != nil {
return c.JSON(http.StatusInternalServerError, err)
}
@ -53,12 +49,11 @@ func Feed(c echo.Context, app *pocketbase.PocketBase, token string) error {
return nil
}
func createFeedForToken(app *pocketbase.PocketBase, token string, course string, semester string) (*model.FeedModel, error) {
res := db.GetPlanForCourseAndSemester(app, course, semester)
func createFeedForToken(app *pocketbase.PocketBase, modules []string) (*model.FeedModel, error) {
res := db.GetPlanForModules(app, modules)
b := bytes.Buffer{}
goics.NewICalEncode(&b).Encode(res)
feed := &model.FeedModel{Content: b.String(), ExpiresAt: time.Now().Add(expirationTime)}
cache[token] = feed
return feed, nil
}
@ -75,3 +70,34 @@ func writeSuccess(message string, w http.ResponseWriter) {
w.WriteHeader(http.StatusOK)
w.Write([]byte(message))
}
func CreateIndividualFeed(c echo.Context, app *pocketbase.PocketBase) error {
// read json from request body
var modules []string
requestBodyBytes, err := io.ReadAll(c.Request().Body)
if err != nil {
return apis.NewApiError(400, "Could not bind request body", err)
}
err = json.Unmarshal(requestBodyBytes, &modules)
if err != nil {
return apis.NewApiError(400, "Could not bind request body", err)
}
var feed model.Feed
jsonModules, _ := json.Marshal(modules)
feed.Modules = string(jsonModules)
collection, dbError := db.FindCollection(app, "feeds")
if dbError != nil {
return apis.NewNotFoundError("Collection not found", dbError)
}
record, err := db.SaveFeed(feed, collection, app)
if err != nil {
return apis.NewNotFoundError("Feed could not be saved", dbError)
}
return c.JSON(http.StatusOK, record.Id)
}