first commit
This commit is contained in:
Adrian Zürcher
50
api/api.go
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50
api/api.go
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@@ -0,0 +1,50 @@
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package api
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import (
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"fmt"
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"time"
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"github.com/gin-contrib/cors"
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"github.com/gin-gonic/gin"
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)
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type API struct {
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host string
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port int
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router *gin.Engine
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}
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func NewAPI(host string, port int) *API {
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r := gin.Default()
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r.Use(cors.New(cors.Config{
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//AllowOrigins: []string{"http://localhost:9000"}, // frontend origin
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AllowOrigins: []string{"*"}, // frontend origin
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AllowMethods: []string{"GET", "POST", "PUT", "DELETE", "OPTIONS"},
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AllowHeaders: []string{"Origin", "Content-Type", "Authorization"},
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ExposeHeaders: []string{"Content-Length"},
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AllowCredentials: true,
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MaxAge: 12 * time.Hour,
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}))
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apiHandler := NewAPIHandler()
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v1 := r.Group("v1")
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v1.GET("/members", apiHandler.GetMemberById)
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v1.GET("/events", apiHandler.GetEventById)
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v1.GET("/events/new", apiHandler.StartNewEvent)
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v1.POST("/database/open", apiHandler.OpenDatabase)
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v1.POST("/members/add", apiHandler.AddNewMember)
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v1.POST("/members/edit", apiHandler.EditMember)
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v1.POST("/members/delete", apiHandler.DeleteMember)
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v1.POST("/members/import/csv", apiHandler.ImportCSV)
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return &API{host: host,
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port: port,
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router: r,
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}
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}
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func (api *API) Run() error {
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return api.router.Run(fmt.Sprintf("%s:%d", api.host, api.port))
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}
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81
api/apiHandler.go
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81
api/apiHandler.go
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@@ -0,0 +1,81 @@
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package api
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import (
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"memberDB/handlers"
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"memberDB/models"
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"net/http"
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"github.com/gin-gonic/gin"
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)
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type APIHandler struct {
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DbHandler *handlers.DatabaseHandler
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}
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func NewAPIHandler() *APIHandler {
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return &APIHandler{}
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}
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func (a *APIHandler) OpenDatabase(c *gin.Context) {
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var database models.Database
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var err error
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if err := c.BindJSON(&database); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{
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"message": err.Error(),
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})
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return
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}
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if database.Path == "" {
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database.SetDefaultPath()
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}
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if database.Token == "" {
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database.SetDefaultToken()
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}
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a.DbHandler, err = handlers.NewDatabaseHandler(database.Path, database.Create)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{
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"message": err.Error(),
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})
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return
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}
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if err := a.DbHandler.CreateNewMemberTable(); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{
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"message": err.Error(),
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})
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return
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}
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if err := a.DbHandler.CreateNewAttendanceTable(); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{
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"message": err.Error(),
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})
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return
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}
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a.DbHandler.SetToken(database.Token)
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_, err = a.DbHandler.GetMember(0)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{
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"message": err.Error(),
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})
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return
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}
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c.JSON(http.StatusOK, gin.H{
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"message": "database opened",
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})
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}
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func (a *APIHandler) databaseOpened(c *gin.Context) bool {
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if a.DbHandler == nil {
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c.JSON(http.StatusBadRequest, gin.H{
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"message": "no database opened",
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})
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return false
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}
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return true
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}
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63
api/attendanceHandler.go
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63
api/attendanceHandler.go
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@@ -0,0 +1,63 @@
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package api
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import (
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"net/http"
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"strconv"
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"github.com/gin-gonic/gin"
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)
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func (a *APIHandler) StartNewEvent(c *gin.Context) {
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if !a.databaseOpened(c) {
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return
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}
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name := c.Query("name")
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if name == "" {
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c.JSON(http.StatusBadRequest, gin.H{
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"message": "missing query 'name'",
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})
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return
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}
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if err := a.DbHandler.StartNewEvent(name); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{
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"message": err.Error(),
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})
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return
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}
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c.JSON(http.StatusOK, gin.H{
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"message": "New Event added " + name,
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})
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}
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func (a *APIHandler) GetEventById(c *gin.Context) {
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if !a.databaseOpened(c) {
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return
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}
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var i int
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var err error
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id := c.Query("id")
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if id != "" {
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i, err = strconv.Atoi(id)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{
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"message": err.Error(),
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})
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return
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}
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}
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events, err := a.DbHandler.GetEvent(i)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{
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"message": err.Error(),
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})
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return
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}
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c.JSON(http.StatusOK, events)
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}
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296
api/membersHandler.go
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296
api/membersHandler.go
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@@ -0,0 +1,296 @@
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package api
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import (
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"encoding/csv"
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"fmt"
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"io"
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"memberDB/models"
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"net/http"
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"strconv"
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"github.com/gin-gonic/gin"
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"github.com/saintfish/chardet"
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"golang.org/x/text/encoding/charmap"
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"golang.org/x/text/transform"
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)
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func (a *APIHandler) AddNewMember(c *gin.Context) {
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if !a.databaseOpened(c) {
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return
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}
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var member models.Member
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c.BindJSON(&member)
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var text string
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if member.FirstName == "" {
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text = "firstName "
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}
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if member.LastName == "" {
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text += "lastName "
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}
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if member.Birthday == "" {
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text += "birthday "
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}
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if text != "" {
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c.JSON(http.StatusBadRequest, gin.H{
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"message": text + "can not be empty",
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})
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return
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}
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err := a.DbHandler.AddNewMember(member)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{
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"message": err.Error(),
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})
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return
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}
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c.JSON(http.StatusOK, gin.H{
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"message": "member added",
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})
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}
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func (a *APIHandler) GetMemberById(c *gin.Context) {
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if !a.databaseOpened(c) {
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return
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}
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var i int
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var err error
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id := c.Query("id")
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if id != "" {
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i, err = strconv.Atoi(id)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{
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"message": err.Error(),
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})
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return
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}
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}
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members, err := a.DbHandler.GetMember(i)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{
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"message": err.Error(),
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})
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return
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}
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c.JSON(http.StatusOK, members)
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}
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func (a *APIHandler) EditMember(c *gin.Context) {
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if !a.databaseOpened(c) {
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return
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}
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var i int
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var err error
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id := c.Query("id")
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if id != "" {
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i, err = strconv.Atoi(id)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{
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"message": err.Error(),
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})
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return
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}
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} else {
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c.JSON(http.StatusBadRequest, gin.H{
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"message": "query parameter 'id' missing",
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})
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return
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}
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var member models.Member
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c.BindJSON(&member)
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err = a.DbHandler.UpdateMember(i, member)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{
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"message": err.Error(),
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})
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return
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}
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c.JSON(http.StatusOK, gin.H{
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"message": "member updated",
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})
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}
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func (a *APIHandler) DeleteMember(c *gin.Context) {
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if !a.databaseOpened(c) {
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return
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}
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var err error
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var request struct {
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Ids []int `json:"ids"`
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}
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err = c.BindJSON(&request)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{
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"message": err.Error(),
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})
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return
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}
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err = a.DbHandler.DeleteMember(request.Ids...)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{
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"message": err.Error(),
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})
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return
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}
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c.JSON(http.StatusOK, gin.H{
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"message": "member deleted",
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})
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}
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func (a *APIHandler) ImportCSV(c *gin.Context) {
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if !a.databaseOpened(c) {
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return
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}
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var err error
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fileHeader, err := c.FormFile("file")
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{
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"message": err.Error(),
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})
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return
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}
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rowIndex := c.PostForm("rowIndex")
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comma := c.PostForm("seperator")
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firstName := c.PostForm("firstName")
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lastName := c.PostForm("lastName")
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birthday := c.PostForm("birthday")
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address := c.PostForm("address")
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town := c.PostForm("town")
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zip := c.PostForm("zip")
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phone := c.PostForm("phone")
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email := c.PostForm("email")
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rowIndexI, err := strconv.Atoi(rowIndex)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{
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"message": err.Error(),
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})
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return
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}
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file, err := fileHeader.Open()
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to open uploaded file"})
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return
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}
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defer file.Close()
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// Read first N bytes to detect encoding
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const sniffSize = 1024 * 10 // 10KB for detection
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buf := make([]byte, sniffSize)
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n, err := file.Read(buf)
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if err != nil && err != io.EOF {
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c.JSON(http.StatusInternalServerError, gin.H{"message": err.Error()})
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return
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}
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// Detect encoding
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detector := chardet.NewTextDetector()
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result, err := detector.DetectBest(buf[:n])
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to detect encoding"})
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return
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}
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_, err = file.Seek(0, io.SeekStart)
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"message": "Failed to rewind file"})
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return
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}
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// Wrap reader based on encoding
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var reader io.Reader
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switch result.Charset {
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case "UTF-8":
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reader = file
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case "windows-1252":
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reader = transform.NewReader(file, charmap.Windows1252.NewDecoder())
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case "ISO-8859-1":
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reader = transform.NewReader(file, charmap.ISO8859_1.NewDecoder())
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default:
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c.JSON(http.StatusBadRequest, gin.H{"message": "Unsupported encoding: " + result.Charset})
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return
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}
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csvReader := csv.NewReader(reader)
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csvReader.Comma = rune(comma[0])
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records, err := csvReader.ReadAll()
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"error": "Failed to parse CSV"})
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return
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}
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var firstNameIndex, lastNameIndex, birthdayIndex, addressIndex, townIndex, zipIndex, phoneIndex, emailIndex int
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var message string
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for i, row := range records {
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if i < rowIndexI {
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continue
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} else if i == rowIndexI {
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for c, column := range row {
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switch column {
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case firstName:
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firstNameIndex = c
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case lastName:
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lastNameIndex = c
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case birthday:
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birthdayIndex = c
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case address:
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addressIndex = c
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case town:
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townIndex = c
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case zip:
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zipIndex = c
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case phone:
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phoneIndex = c
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case email:
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emailIndex = c
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}
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}
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continue
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}
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if row[firstNameIndex] == "" && row[lastNameIndex] == "" {
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continue
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}
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err := a.DbHandler.AddNewMember(models.Member{
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FirstName: row[firstNameIndex],
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LastName: row[lastNameIndex],
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Birthday: row[birthdayIndex],
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Address: row[addressIndex],
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Town: row[townIndex],
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Zip: row[zipIndex],
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Phone: row[phoneIndex],
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Email: row[emailIndex],
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})
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if err != nil {
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message += "Row: " + fmt.Sprint(i) + " " + row[firstNameIndex] + " " + row[lastNameIndex] + " error: " + err.Error() + "\n"
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}
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}
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if message != "" {
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c.JSON(http.StatusBadRequest, gin.H{
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"message": message,
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})
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return
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}
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c.JSON(http.StatusOK, gin.H{
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"message": "CSV imported",
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})
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}
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Reference in New Issue
Block a user