package data weiter aufgeräumt

i und j sollten jetzt richtig verwendet werden

.air.toml

@@ -0,0 +1,44 @@
+root = "."
+testdata_dir = "testdata"
+tmp_dir = "tmp"
+
+[build]
+  args_bin = []
+  bin = "./tmp/main"
+  cmd = "go build -o ./tmp/main ."
+  delay = 0
+  exclude_dir = ["assets", "tmp", "vendor", "testdata"]
+  exclude_file = []
+  exclude_regex = ["_test.go"]
+  exclude_unchanged = false
+  follow_symlink = false
+  full_bin = ""
+  include_dir = []
+  include_ext = ["go", "tpl", "tmpl", "html"]
+  include_file = []
+  kill_delay = "0s"
+  log = "build-errors.log"
+  poll = false
+  poll_interval = 0
+  rerun = false
+  rerun_delay = 500
+  send_interrupt = false
+  stop_on_error = false
+
+[color]
+  app = ""
+  build = "yellow"
+  main = "magenta"
+  runner = "green"
+  watcher = "cyan"
+
+[log]
+  main_only = false
+  time = false
+
+[misc]
+  clean_on_exit = false
+
+[screen]
+  clear_on_rebuild = false
+  keep_scroll = true

.gitignore

@@ -0,0 +1,2 @@
+tmp
+test.sql

create_tables.sql

@@ -0,0 +1,102 @@
+USE sicherheitsunterweisung;
+
+SET FOREIGN_KEY_CHECKS = 0;
+DROP TABLE IF EXISTS instructors;
+DROP TABLE IF EXISTS briefings;
+DROP TABLE IF EXISTS participants;
+DROP TABLE IF EXISTS questions;
+DROP TABLE IF EXISTS given_answers;
+SET FOREIGN_KEY_CHECKS = 1;
+
+CREATE TABLE instructors (
+  id         INT         NOT NULL,
+  first_name VARCHAR(32) NOT NULL,
+  last_name  VARCHAR(32) NOT NULL,
+
+  PRIMARY KEY(id)
+);
+
+CREATE TABLE briefings (
+  id            INT         AUTO_INCREMENT,
+  date          DATE        NOT NULL,
+  time          TIME        NOT NULL,
+  location      VARCHAR(32) NOT NULL,
+  document_name VARCHAR(16) NOT NULL,
+  as_of         DATE        NOT NULL,
+  instructor_id INT         NOT NULL,
+
+  PRIMARY KEY(id),
+  FOREIGN KEY(instructor_id) REFERENCES instructors(id)
+);
+
+CREATE TABLE participants (
+  id         INT         AUTO_INCREMENT,
+  first_name VARCHAR(32) NOT NULL,
+  last_name  VARCHAR(32) NOT NULL,
+  company    VARCHAR(32) NOT NULL,
+
+  PRIMARY KEY(id)
+);
+
+CREATE TABLE questions (
+  id             INT          AUTO_INCREMENT,
+  question       VARCHAR(256) NOT NULL,
+  answer_1       VARCHAR(64)  NOT NULL,
+  answer_2       VARCHAR(64)  NOT NULL,
+  answer_3       VARCHAR(64)  NOT NULL,
+  answer_4       VARCHAR(64)  NOT NULL,
+  correct_answer INT          NOT NULL,
+
+  PRIMARY KEY(id)
+);
+
+CREATE TABLE given_answers (
+  briefing_id    INT NOT NULL,
+  participant_id INT NOT NULL,
+  question_id    INT NOT NULL,
+  given_answer   INT NOT NULL,
+
+  PRIMARY KEY(briefing_id, participant_id, question_id),
+  FOREIGN KEY(briefing_id)    REFERENCES briefings(id),
+  FOREIGN KEY(participant_id) REFERENCES participants(id),
+  FOREIGN KEY(question_id)    REFERENCES questions(id)
+);
+
+INSERT INTO instructors
+  (id, first_name, last_name)
+VALUES
+  ( '123456', 'Jason', 'Streifling'     ),
+  ( '123457', 'Tim',   'Taler'          ),
+  ( '123458', 'Georg', 'aus dem Jungel' );
+
+INSERT INTO briefings (
+  date, time, location, document_name, as_of, instructor_id
+) VALUES
+  ( '2023-10-16', '17:00:00', 'Werk Langenhagen', 'ICS-2021-LGH', '2021-02-01', '123456' ),
+  ( '2023-10-16', '17:05:00', 'Werk Langenhagen', 'ICS-2021-LGH', '2021-02-01', '123457' );
+
+INSERT INTO participants (
+  first_name, last_name, company
+) VALUES
+  ( 'Peter', 'Enis',  'Körber'     ),
+  ( 'Dürüm', 'Döner', 'MP Technic' );
+
+INSERT INTO questions (
+  question, answer_1, answer_2, answer_3, answer_4, correct_answer
+) VALUES
+  ( 'Was ist 1+1?', '1', '2', '3', '4', '2' ),
+  ( 'Was ist 1+2?', '1', '2', '3', '4', '3' ),
+  ( 'Was ist 2+2?', '1', '2', '3', '4', '4' ),
+  ( 'Was ist 0+1?', '1', '2', '3', '4', '1' );
+
+INSERT INTO given_answers (
+  briefing_id, participant_id, question_id, given_answer
+) VALUES
+  ( '1', '1', '1', '2' ),
+  ( '1', '1', '2', '3' ),
+  ( '1', '1', '3', '3' ),
+  ( '1', '1', '4', '1' ),
+  ( '2', '2', '1', '2' ),
+  ( '2', '2', '2', '3' ),
+  ( '2', '2', '3', '4' ),
+  ( '2', '2', '4', '1' );

go.mod

@@ -1,3 +1,11 @@
 module streifling.com/jason/sicherheitsunterweisung
 
 go 1.21.1
+
+require (
+	github.com/go-sql-driver/mysql v1.7.1
+	github.com/google/uuid v1.3.1
+	golang.org/x/term v0.13.0
+)
+
+require golang.org/x/sys v0.13.0 // indirect

go.sum

@@ -0,0 +1,8 @@
+github.com/go-sql-driver/mysql v1.7.1 h1:lUIinVbN1DY0xBg0eMOzmmtGoHwWBbvnWubQUrtU8EI=
+github.com/go-sql-driver/mysql v1.7.1/go.mod h1:OXbVy3sEdcQ2Doequ6Z5BW6fXNQTmx+9S1MCJN5yJMI=
+github.com/google/uuid v1.3.1 h1:KjJaJ9iWZ3jOFZIf1Lqf4laDRCasjl0BCmnEGxkdLb4=
+github.com/google/uuid v1.3.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+golang.org/x/sys v0.13.0 h1:Af8nKPmuFypiUBjVoU9V20FiaFXOcuZI21p0ycVYYGE=
+golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/term v0.13.0 h1:bb+I9cTfFazGW51MZqBVmZy7+JEJMouUHTUSKVQLBek=
+golang.org/x/term v0.13.0/go.mod h1:LTmsnFJwVN6bCy1rVCoS+qHT1HhALEFxKncY3WNNh4U=

main.go

@@ -5,64 +5,64 @@ import (
 	"html/template"
 	"log"
 	"net/http"
+
+	"streifling.com/jason/sicherheitsunterweisung/packages/data"
+	"streifling.com/jason/sicherheitsunterweisung/packages/session"
 )
 
-type Person struct {
-	FirstName string
-	LastName  string
+func handleParticipants(mux *http.ServeMux, db *data.DB, cp <-chan *data.Participant, s *session.Session) {
+	for participant := range cp {
+		mux.HandleFunc("/submit-participant/"+fmt.Sprint(s.ID)+"/"+fmt.Sprint(participant.Login)+"/", s.HandleParticipant(participant, &s.Questions, db))
+		for i := range s.Questions {
+			mux.HandleFunc("/submit-answer/"+fmt.Sprint(s.ID)+"/"+fmt.Sprint(participant.Login)+"/"+fmt.Sprint(i+1)+"/", s.HandleAnswer(db, participant, &s.Questions, int64(i+1)))
+		}
+		mux.HandleFunc("/retry/"+fmt.Sprint(s.ID)+"/"+fmt.Sprint(participant.Login)+"/", s.HandleRetry(participant, &s.Questions))
+	}
 }
 
-type Instructor Person
+func handleSessions(mux *http.ServeMux, db *data.DB, cs <-chan *session.Session, ss *[]*session.Session) {
+	for s := range cs {
+		(*ss) = append(*ss, s)
+		participantChan := make(chan *data.Participant)
+		questionIDs := make([]string, 4)
 
-type Participant struct {
-	ID int64
-	Person
-	Company string
-}
+		for i := 0; i < len(questionIDs); i++ {
+			questionIDs[i] = fmt.Sprint(i + 1)
+		}
 
-type Briefing struct {
-	Instructor
-	Date         string
-	Time         string
-	State        string
-	Location     string
-	Participants []Participant
+		var err error
+		s.Questions, err = db.GetQuestions(questionIDs)
+		if err != nil {
+			log.Fatalln(err)
+		}
+
+		mux.HandleFunc("/new-briefing/", s.HandleNewBriefing())
+		mux.HandleFunc("/new-participant/"+fmt.Sprint(s.ID)+"/", s.HandleNewParticipant(participantChan))
+		mux.HandleFunc("/submit-form/"+fmt.Sprint(s.ID)+"/", s.HandleBriefingForm(db))
+
+		go handleParticipants(mux, db, participantChan, s)
+	}
 }
 
 func main() {
-	var i, j int64
-	var b Briefing
+	db, err := data.OpenDB("sicherheitsunterweisung")
+	if err != nil {
+		log.Fatalln(err)
+	}
 
 	mux := http.NewServeMux()
-	i = 1
+	sessions := make([]*session.Session, 0)
+	sessionChan := make(chan *session.Session)
 
 	mux.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.Dir("static/"))))
 	mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
-		template.Must(template.ParseFiles("templates/index.html")).Execute(w, i)
-	})
-	mux.HandleFunc("/add-participant/", func(w http.ResponseWriter, r *http.Request) {
-		i++
-		template.Must(template.ParseFiles("templates/index.html", "templates/participant.html")).ExecuteTemplate(w, "participant", i)
-	})
-	mux.HandleFunc("/submit/", func(w http.ResponseWriter, r *http.Request) {
-		b.Instructor.FirstName = r.PostFormValue("instructor-first")
-		b.Instructor.LastName = r.PostFormValue("instructor-last")
-		b.Date = r.PostFormValue("date")
-		b.Time = r.PostFormValue("time")
-		b.State = r.PostFormValue("state")
-		b.Location = r.PostFormValue("location")
-		for j = 1; j <= i; j++ {
-			b.Participants = append(b.Participants, Participant{
-				ID: j,
-				Person: Person{
-					FirstName: r.PostFormValue("participant-first-" + fmt.Sprint(j)),
-					LastName:  r.PostFormValue(("participant-last-" + fmt.Sprint(j))),
-				},
-				Company: r.PostFormValue(("participant-company-" + fmt.Sprint(j))),
-			})
-		}
-		fmt.Println(b)
+		template.Must(template.ParseFiles("templates/index.html", "templates/login.html")).Execute(w, nil)
 	})
+	mux.HandleFunc("/internal-login/", session.HandleInternalLogin(&sessions, sessionChan, db))
+	mux.HandleFunc("/external-login/", session.HandleExternalLogin(&sessions))
+	mux.HandleFunc("/search/", session.HandleSearch(db))
+
+	go handleSessions(mux, db, sessionChan, &sessions)
 
 	log.Fatalln(http.ListenAndServe(":8080", mux))
 }

packages/data/dataStructs.go

@@ -0,0 +1,63 @@
+package data
+
+import "database/sql"
+
+type DB struct {
+	*sql.DB
+}
+
+type Person struct {
+	ID        int64
+	FirstName string
+	LastName  string
+}
+
+type Instructor Person
+
+type Participant struct {
+	Person
+	Company string
+	Login   string
+}
+
+type Briefing struct {
+	ID           int64
+	Date         string
+	Time         string
+	Location     string
+	DocumentName string
+	AsOf         string
+	InstructorID int64
+}
+
+type Answer struct {
+	ID   int64
+	Text string
+}
+
+type Question struct {
+	ID      int64
+	Text    string
+	Answers []Answer
+	Correct int
+}
+
+type GivenAnswer struct {
+	BriefingID    int64
+	ParticipantID int64
+	QuestionID    int64
+	GivenAnswer   int
+}
+
+type OverviewTableData struct {
+	InstructorFirstName  string
+	InstructorLastName   string
+	BriefingDate         string
+	BriefingTime         string
+	BriefingLocation     string
+	BriefingDocumentName string
+	BriefingAsOf         string
+	ParticipantFirstName string
+	ParticipantLastName  string
+	ParticipantCompany   string
+}

packages/data/dbFuncs.go

@@ -0,0 +1,329 @@
+package data
+
+import (
+	"database/sql"
+	"fmt"
+	"strings"
+
+	"github.com/go-sql-driver/mysql"
+)
+
+func OpenDB(dbName string) (*DB, error) {
+	var err error
+	db := new(DB)
+
+	cfg := mysql.NewConfig()
+	cfg.DBName = dbName
+	cfg.User, cfg.Passwd, err = getCredentials()
+	if err != nil {
+		return nil, fmt.Errorf("Open: getCredentials(): %v\n", err)
+	}
+
+	db.DB, err = sql.Open("mysql", cfg.FormatDSN())
+	if err != nil {
+		return nil, fmt.Errorf("Open: sql.Open(\"mysql\", cfg.FormatDSN()): %v\n", err)
+	}
+	if err := db.Ping(); err != nil {
+		return nil, fmt.Errorf("Open: db.Ping(): %v\n", err)
+	}
+
+	return db, nil
+}
+
+func (db *DB) WriteBriefing(b *Briefing) error {
+	result, err := db.Exec(`
+  INSERT INTO briefings
+  	(date, time, location, document_name, as_of, instructor_id)
+  VALUES
+  	(?, ?, ?, ?, ?, ?)
+  `, b.Date, b.Time, b.Location, b.DocumentName, b.AsOf, b.InstructorID)
+	if err != nil {
+		return fmt.Errorf("*DB.writeBriefing: db.Exec(): %v\n", err)
+	}
+
+	b.ID, err = result.LastInsertId()
+	if err != nil {
+		return fmt.Errorf("*DB.writeBriefing: result.LastInsertId(): %v\n", err)
+	}
+
+	return nil
+}
+
+func (db *DB) WriteParticipant(p *Participant) error {
+	result, err := db.Exec(`
+  INSERT INTO participants
+  	(first_name, last_name, company)
+  VALUES
+  	(?, ?, ?)
+  `, p.FirstName, p.LastName, p.Company)
+	if err != nil {
+		return fmt.Errorf("*DB.writeParticipants: db.Exec(): %v\n", err)
+	}
+
+	p.ID, err = result.LastInsertId()
+	if err != nil {
+		return fmt.Errorf("*DB.writeParticipants: result.LastInsertId(): %v\n", err)
+	}
+
+	return nil
+}
+
+func (db *DB) WriteGivenAnswer(b *Briefing, p *Participant, q *Question, g int) error {
+	_, err := db.Exec(`
+  INSERT INTO given_answers
+  	(briefing_id, participant_id, question_id, given_answer)
+  VALUES
+  	(?, ?, ?, ?)
+  `, b.ID, p.ID, q.ID, g)
+	if err != nil {
+		return fmt.Errorf("*DB.writeGivenAnswers: db.Exec(): %v\n", err)
+	}
+
+	return nil
+}
+
+func (db *DB) WriteAllDataOfBriefing(b *Briefing, sp *[]*Participant, sq *[]*Question, sg *[]*GivenAnswer) error {
+	if err := db.WriteBriefing(b); err != nil {
+		return fmt.Errorf("*DB.WriteAllDataOfBriefing: db.writeBriefing(): %v\n", err)
+	}
+
+	for _, p := range *sp {
+		if err := db.WriteParticipant(p); err != nil {
+			return fmt.Errorf("*DB.WriteAllDataOfBriefing: db.writeParticipants(): %v\n", err)
+		}
+	}
+
+	for _, p := range *sp {
+		for i, q := range *sq {
+			db.WriteGivenAnswer(b, p, q, i)
+		}
+	}
+
+	return nil
+}
+
+func (db *DB) GetAllOverviewTableData() ([]*OverviewTableData, error) {
+	rows, err := db.Query(`
+  SELECT
+    i.first_name,
+    i.last_name,
+    b.date,
+    b.time,
+    b.location,
+    b.document_name,
+    b.as_of,
+    p.first_name,
+    p.last_name,
+    p.company
+  FROM given_answers AS g
+    INNER JOIN briefings AS b
+      ON b.id = g.briefing_id
+    INNER JOIN participants AS p
+      ON p.id = g.participant_id
+    INNER JOIN questions AS q
+      ON q.id = g.question_id
+    INNER JOIN instructors AS i
+      ON i.id = b.instructor_id
+  WHERE
+    q.id = 1
+  ORDER BY
+    b.id DESC,
+    p.id
+  `)
+	if err != nil {
+		return nil, fmt.Errorf("*DB.ReadAllBriefings: db.Query(): %v\n", err)
+	}
+	defer rows.Close()
+
+	data := make([]*OverviewTableData, 0)
+	for rows.Next() {
+		otd := new(OverviewTableData)
+
+		err := rows.Scan(
+			&otd.InstructorFirstName,
+			&otd.InstructorLastName,
+			&otd.BriefingDate,
+			&otd.BriefingTime,
+			&otd.BriefingLocation,
+			&otd.BriefingDocumentName,
+			&otd.BriefingAsOf,
+			&otd.ParticipantFirstName,
+			&otd.ParticipantLastName,
+			&otd.ParticipantCompany,
+		)
+		if err != nil {
+			return nil, fmt.Errorf("*DB.ReadAllBriefings: rows.Scan(): %v\n", err)
+		}
+
+		data = append(data, otd)
+	}
+
+	return data, nil
+}
+
+func (db *DB) GetOverviewTableDataByName(n string) (*[]*OverviewTableData, error) {
+	rows, err := db.Query(`
+  SELECT
+    i.first_name,
+    i.last_name,
+    b.date,
+    b.time,
+    b.location,
+    b.document_name,
+    b.as_of,
+    p.first_name,
+    p.last_name,
+    p.company
+  FROM given_answers AS g
+    INNER JOIN briefings AS b
+      ON b.id = g.briefing_id
+    INNER JOIN participants AS p
+      ON p.id = g.participant_id
+    INNER JOIN instructors AS i
+      ON i.id = b.instructor_id
+  WHERE
+    q.id = 1 AND
+    i.first_name LIKE ? OR
+    i.last_name LIKE ? OR
+    p.first_name LIKE ? OR
+    p.last_name LIKE ?
+  ORDER BY
+    b.id DESC,
+    p.id
+  `, "%"+n+"%", "%"+n+"%", "%"+n+"%", "%"+n+"%")
+	if err != nil {
+		return nil, fmt.Errorf("*DB.GetOverviewTableDataByName: db.Query(): %v\n", err)
+	}
+	defer rows.Close()
+
+	data := make([]*OverviewTableData, 0)
+	for rows.Next() {
+		otd := new(OverviewTableData)
+
+		err := rows.Scan(
+			&otd.InstructorFirstName,
+			&otd.InstructorLastName,
+			&otd.BriefingDate,
+			&otd.BriefingTime,
+			&otd.BriefingLocation,
+			&otd.BriefingDocumentName,
+			&otd.BriefingAsOf,
+			&otd.ParticipantFirstName,
+			&otd.ParticipantLastName,
+			&otd.ParticipantCompany,
+		)
+		if err != nil {
+			return nil, fmt.Errorf("*DB.ReadAllBriefings: rows.Scan(): %v\n", err)
+		}
+
+		data = append(data, otd)
+	}
+
+	return &data, nil
+}
+
+func (db *DB) GetLastID(table string) (int, error) {
+	var id int
+
+	row := db.QueryRow(`
+  SELECT id
+  FROM ?
+  ORDER BY id DESC
+    LIMIT 0, 1
+  `, table)
+
+	if err := row.Scan(&id); err != nil {
+		return -1, fmt.Errorf("*DB.GetLastID: row.Scan(): %v\n", err)
+	}
+
+	return id, nil
+}
+
+func (db *DB) GetInstructors() ([]*Instructor, error) {
+	rows, err := db.Query(`
+  SELECT *
+  FROM instructors
+  ORDER BY
+    last_name,
+    first_name
+  `)
+	if err != nil {
+		return nil, fmt.Errorf("*DB.GetInstructors: db.Query(): %v\n", err)
+	}
+	defer rows.Close()
+
+	instructors := make([]*Instructor, 0)
+	for rows.Next() {
+		instructor := new(Instructor)
+		if err = rows.Scan(&instructor.ID, &instructor.FirstName, &instructor.LastName); err != nil {
+			return nil, fmt.Errorf("*DB.GetInstructors: rows.Scan(): %v\n", err)
+		}
+		instructors = append(instructors, instructor)
+	}
+
+	return instructors, nil
+}
+
+func (db *DB) GetQuestions(nums []string) ([]Question, error) {
+	rows, err := db.Query(`
+  SELECT *
+  FROM questions
+  WHERE id IN (` + strings.Join(nums, ", ") + `)
+  `)
+	if err != nil {
+		return nil, fmt.Errorf("*DB.GetQuestions: db.Query(): %v\n", err)
+	}
+	defer rows.Close()
+
+	questions := make([]Question, 0)
+	for rows.Next() {
+		q := new(Question)
+		a1 := new(Answer)
+		a2 := new(Answer)
+		a3 := new(Answer)
+		a4 := new(Answer)
+
+		a1.ID = 1
+		a2.ID = 2
+		a3.ID = 3
+		a4.ID = 4
+
+		if err := rows.Scan(&q.ID, &q.Text, &a1.Text, &a2.Text, &a3.Text, &a4.Text, &q.Correct); err != nil {
+			return nil, fmt.Errorf("*DB.GetQuestions: rows.Scan(): %v\n", err)
+		}
+
+		q.Answers = append(q.Answers, *a1)
+		q.Answers = append(q.Answers, *a2)
+		q.Answers = append(q.Answers, *a3)
+		q.Answers = append(q.Answers, *a4)
+
+		questions = append(questions, *q)
+	}
+
+	return questions, nil
+}
+
+func (db *DB) GetGivenAnswers(bid, pid int64, sq []Question) ([]int, error) {
+	answers := make([]int, 0)
+	query := `
+  SELECT given_answer
+  FROM given_answers
+  WHERE
+    briefing_id = ? AND
+    participant_id = ? AND
+    question_id = ?
+  `
+
+	for _, q := range sq {
+		var answer int
+
+		row := db.QueryRow(query, bid, pid, q.ID)
+		if err := row.Scan(&answer); err != nil {
+			return nil, fmt.Errorf("*DB.GetGivenAnswers: row.Scan(): %v\n", err)
+		}
+
+		answers = append(answers, answer)
+	}
+
+	return answers, nil
+}

packages/data/helperFuncs.go

@@ -0,0 +1,52 @@
+package data
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strings"
+	"syscall"
+
+	"golang.org/x/term"
+)
+
+func getUsername() (string, error) {
+	user := os.Getenv("DB_USER")
+	if user == "" {
+		var err error
+		fmt.Printf("DB Benutzer: ")
+		user, err = bufio.NewReader(os.Stdin).ReadString('\n')
+		if err != nil {
+			return "", fmt.Errorf("getUsername: bufio.NewReader(os.Stdin).ReadString('\n'): %v", err)
+		}
+	}
+	return strings.TrimSpace(user), nil
+}
+
+func getPassword() (string, error) {
+	pass := os.Getenv("DB_PASS")
+	if pass == "" {
+		fmt.Printf("DB Passwort: ")
+		bytePass, err := term.ReadPassword(int(syscall.Stdin))
+		if err != nil {
+			return "", fmt.Errorf("getCredentials: term.ReadPassword(int(syscall.Stdin)): %v", err)
+		}
+		fmt.Println()
+		pass = strings.TrimSpace(string(bytePass))
+	}
+	return pass, nil
+}
+
+func getCredentials() (string, string, error) {
+	user, err := getUsername()
+	if err != nil {
+		return "", "", fmt.Errorf("getCredentials: getUsername(): %v", err)
+	}
+
+	pass, err := getPassword()
+	if err != nil {
+		return "", "", fmt.Errorf("getCredentials: getPassword(): %v", err)
+	}
+
+	return user, pass, nil
+}

packages/session/handlerFuncs.go

@@ -0,0 +1,215 @@
+package session
+
+import (
+	"fmt"
+	"html/template"
+	"log"
+	"net/http"
+	"time"
+
+	"github.com/google/uuid"
+	"streifling.com/jason/sicherheitsunterweisung/packages/data"
+)
+
+func HandleInternalLogin(ss *[]*Session, cs chan<- *Session, db *data.DB) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		instructors, err := db.GetInstructors()
+		if err != nil {
+			http.Error(w, "HandleInternalLogin: db.GetInstructors(): "+fmt.Sprint(err), http.StatusInternalServerError)
+			log.Panicln(err)
+		}
+
+		for _, i := range instructors {
+			if r.PostFormValue("login") == fmt.Sprint(i.ID) {
+				session := new(Session)
+				session.ID = uuid.New()
+				session.Briefing = new(data.Briefing)
+				session.Briefing.InstructorID = i.ID
+				(*ss) = append((*ss), session)
+				cs <- session
+
+				displayTable(w, db)
+				return
+			}
+		}
+		template.Must(template.ParseFiles("templates/login.html")).ExecuteTemplate(w, "content", nil)
+	}
+}
+
+func HandleSearch(db *data.DB) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		bs, err := db.GetOverviewTableDataByName(r.PostFormValue("search"))
+		if err != nil {
+			http.Error(w, "DisplayResults: db.ReadByName(r.PostFormValue()): "+fmt.Sprint(err), http.StatusInternalServerError)
+		}
+		template.Must(template.ParseFiles("templates/table.html")).ExecuteTemplate(w, "rows", bs)
+	}
+}
+
+func (s *Session) HandleNewBriefing() http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		data := new(briefingHTMLData)
+		data.SessionID = s.ID
+		template.Must(template.ParseFiles("templates/briefing.html")).ExecuteTemplate(w, "content", data)
+	}
+}
+
+func (s *Session) HandleNewParticipant(cp chan<- *data.Participant) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var err error
+		p := new(data.Participant)
+		p.Login, err = generateLogin()
+		if err != nil {
+			http.Error(w, "AddParticipant: generateLogin(): "+fmt.Sprint(err), http.StatusInternalServerError)
+		}
+		s.Participants = append(s.Participants, p)
+		cp <- p
+
+		data := new(briefingHTMLData)
+		data.SessionID = s.ID
+		data.Login = p.Login
+		if err != nil {
+			http.Error(w, "AddParticipant: generateLogin(): "+fmt.Sprint(err), http.StatusInternalServerError)
+		}
+
+		template.Must(template.ParseFiles("templates/briefing.html")).ExecuteTemplate(w, "new", data)
+	}
+}
+
+func (s *Session) HandleBriefingForm(db *data.DB) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		now := time.Now()
+		var err error
+
+		s.Briefing.Date = now.Format("2006-01-02")
+		s.Briefing.Time = now.Format("15:04:05")
+		s.Briefing.Location = r.PostFormValue("location")
+		s.Briefing.DocumentName = r.PostFormValue("document")
+		s.Briefing.AsOf = r.PostFormValue("as-of")
+
+		err = db.WriteBriefing(s.Briefing)
+		if err != nil {
+			http.Error(w, "SubmitBriefingForm: db.WriteBriefing(): "+fmt.Sprint(err), http.StatusInternalServerError)
+			log.Panicln(err)
+		}
+
+		displayTable(w, db)
+	}
+}
+
+func HandleExternalLogin(ss *[]*Session) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, participant, loginCorrect := findCorrectLogin(r.PostFormValue("login"), ss)
+		if loginCorrect {
+			data := new(participantHTMLData)
+			data.SessionID = session.ID
+			data.Login = participant.Login
+
+			template.Must(template.ParseFiles("templates/participant.html")).ExecuteTemplate(w, "content", data)
+		} else {
+			template.Must(template.ParseFiles("templates/login.html")).ExecuteTemplate(w, "content", nil)
+		}
+	}
+}
+
+func (s *Session) HandleParticipant(p *data.Participant, sq *[]data.Question, db *data.DB) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		p.FirstName = r.PostFormValue("first-" + fmt.Sprint(p.Login))
+		p.LastName = r.PostFormValue("last-" + fmt.Sprint(p.Login))
+		p.Company = r.PostFormValue("company-" + fmt.Sprint(p.Login))
+
+		err := db.WriteParticipant(p)
+		if err != nil {
+			http.Error(w, "DisplayQuestion: db.WriteParticipant(): "+fmt.Sprint(err), http.StatusInternalServerError)
+			log.Panicln(err)
+		}
+
+		data := new(questionHTMLData)
+		data.SessionID = s.ID
+		data.Login = p.Login
+		data.Question = (*sq)[0]
+		data.QuestionID = 1
+
+		template.Must(template.ParseFiles("templates/question.html")).ExecuteTemplate(w, "content", data)
+	}
+}
+
+func (s *Session) HandleAnswer(db *data.DB, p *data.Participant, sq *[]data.Question, i int64) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		log.Println(i, len(*sq))
+		if i < int64(len(*sq)) {
+			if err := handleGivenAnswer(s, p, i-1, r, db); err != nil {
+				http.Error(w, "DisplayQuestion: handleGivenAnswer(): "+fmt.Sprint(err), http.StatusInternalServerError)
+				log.Panicln(err)
+			}
+
+			data := new(questionHTMLData)
+			data.SessionID = s.ID
+			data.Login = p.Login
+			data.Question = (*sq)[i]
+			data.QuestionID = i + 1
+
+			template.Must(template.ParseFiles("templates/question.html")).ExecuteTemplate(w, "content", data)
+		} else {
+			if err := handleGivenAnswer(s, p, i-1, r, db); err != nil {
+				http.Error(w, "DisplayTestResults: handleGivenAnswer(): "+fmt.Sprint(err), http.StatusInternalServerError)
+				log.Panicln(err)
+			}
+
+			givenAnswers, err := db.GetGivenAnswers(s.Briefing.ID, p.ID, s.Questions)
+			if err != nil {
+				http.Error(w, "DisplayTestResults: db.GetGivenAnswers(): "+fmt.Sprint(err), http.StatusInternalServerError)
+				log.Panicln(err)
+			}
+
+			data := new(resultHTMLData)
+			data.SessionID = s.ID
+			data.Login = p.Login
+			data.Incorrect = 0
+
+			data.Questions = make([]htmlQuestion, 0)
+			for i, q := range s.Questions {
+				question := new(htmlQuestion)
+				question.Text = q.Text
+
+				question.Answers = make([]htmlAnswer, 0)
+				for j, a := range q.Answers {
+					answer := new(htmlAnswer)
+					answer.Text = a.Text
+
+					if j+1 == q.Correct {
+						answer.Correct = true
+					} else {
+						answer.Correct = false
+					}
+
+					if j+1 == givenAnswers[i] {
+						answer.Chosen = true
+					} else {
+						answer.Chosen = false
+					}
+					question.Answers = append(question.Answers, *answer)
+				}
+				data.Questions = append(data.Questions, *question)
+
+				if givenAnswers[i] != q.Correct {
+					data.Incorrect++
+				}
+			}
+
+			template.Must(template.ParseFiles("templates/result.html")).ExecuteTemplate(w, "content", data)
+		}
+	}
+}
+
+func (s *Session) HandleRetry(p *data.Participant, sq *[]data.Question) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		data := new(questionHTMLData)
+		data.SessionID = s.ID
+		data.Login = p.Login
+		data.Question = (*sq)[0]
+		data.QuestionID = 1
+
+		template.Must(template.ParseFiles("templates/question.html")).ExecuteTemplate(w, "content", data)
+	}
+}

packages/session/helperFuncs.go

@@ -0,0 +1,66 @@
+package session
+
+import (
+	"crypto/rand"
+	"encoding/hex"
+	"fmt"
+	"html/template"
+	"net/http"
+	"strconv"
+
+	"streifling.com/jason/sicherheitsunterweisung/packages/data"
+)
+
+func displayTable(w http.ResponseWriter, db *data.DB) {
+	bs, err := db.GetAllOverviewTableData()
+	if err != nil {
+		http.Error(w, "displayTable: *DB.GetAllOverviewTableData(): "+fmt.Sprint(err), http.StatusInternalServerError)
+	}
+	template.Must(template.ParseFiles("templates/table.html")).ExecuteTemplate(w, "content", bs)
+}
+
+func generateLogin() (string, error) {
+	bs := make([]byte, 4)
+
+	if _, err := rand.Read(bs); err != nil {
+		return "", fmt.Errorf("generateLogin: rand.Read(bs): %v\n", err)
+	}
+
+	return hex.EncodeToString(bs), nil
+}
+
+func findCorrectLogin(l string, ss *[]*Session) (*Session, *data.Participant, bool) {
+	for _, session := range *ss {
+		for _, p := range session.Participants {
+			if l == p.Login {
+				return session, p, true
+			}
+		}
+	}
+	return nil, nil, false
+}
+
+func newParticipant(l string) (*data.Participant, error) {
+	var err error
+	p := new(data.Participant)
+
+	p.ID, err = strconv.ParseInt(l, 10, 64)
+	if err != nil {
+		return nil, fmt.Errorf("newParticipant: strconv.Atoi(idString): %v\n", err)
+	}
+
+	return p, nil
+}
+
+func handleGivenAnswer(s *Session, p *data.Participant, i int64, r *http.Request, db *data.DB) error {
+	answer, err := strconv.Atoi(r.PostFormValue("answer"))
+	if err != nil {
+		return fmt.Errorf("handleGivenAnswer: strconv.Atoi(): %v\n", err)
+	}
+
+	if err := db.WriteGivenAnswer(s.Briefing, p, &s.Questions[i], answer); err != nil {
+		return fmt.Errorf("handleGivenAnswer: db.WriteGivenAnswer(): %v\n", err)
+	}
+
+	return nil
+}

packages/session/htmlStructs.go

@@ -0,0 +1,48 @@
+package session
+
+import (
+	"github.com/google/uuid"
+	"streifling.com/jason/sicherheitsunterweisung/packages/data"
+)
+
+type Session struct {
+	ID uuid.UUID
+	*data.Briefing
+	Participants []*data.Participant
+	Questions    []data.Question
+}
+
+type briefingHTMLData struct {
+	SessionID uuid.UUID
+	Login     string
+}
+
+type participantHTMLData struct {
+	SessionID uuid.UUID
+	Login     string
+}
+
+type questionHTMLData struct {
+	SessionID  uuid.UUID
+	Login      string
+	Question   data.Question
+	QuestionID int64
+}
+
+type htmlAnswer struct {
+	Text    string
+	Correct bool
+	Chosen  bool
+}
+
+type htmlQuestion struct {
+	Text    string
+	Answers []htmlAnswer
+}
+
+type resultHTMLData struct {
+	SessionID uuid.UUID
+	Login     string
+	Questions []htmlQuestion
+	Incorrect int
+}

static/css/style.css

@@ -0,0 +1,7 @@
+.correct {
+  color: #00ff00;
+}
+
+.incorrect {
+  color: #ff0000;
+}

templates/briefing.html

@@ -0,0 +1,37 @@
+{{ define "add-buttons" }}
+<div id="briefing-buttons">
+  <button type="button" hx-post="/new-participant/{{ .SessionID }}/" hx-target="#briefing-buttons" hx-swap="outerHTML">
+    Neuer Teilnehmer
+  </button>
+
+  <button type="submit" hx-post="/submit-form/{{ .SessionID }}/" hx-target="#content" hx-swap="innerHTML">
+    Fertig
+  </button>
+</div>
+{{ end }}
+
+{{ define "new" }}
+{{ template "add-buttons" . }}
+<p>{{ .Login }}</p>
+{{ end }}
+
+{{ define "content" }}
+<form>
+  <div>
+    <label for="location">Ort</label>
+    <input id="location" name="location" required type="text" />
+  </div>
+
+  <div>
+    <label for="document">Dokument</label>
+    <input id="document" name="document" required type="text" />
+  </div>
+
+  <div>
+    <label for="as-of">Stand vom</label>
+    <input id="as-of" name="as-of" required type="date" />
+  </div>
+
+  {{ template "add-buttons" . }}
+</form>
+{{ end }}

templates/index.html

@@ -11,57 +11,9 @@
 <body>
   <h1>Sicherheitsunterweisung</h1>
 
-  <form>
-    <div id="instructor">
-      <label for="instructor-first-input">Unterweiser Vorname</label>
-      <input type="text" name="instructor-first" id="instructor-first-input" />
-
-      <label for="instructor-last-input">Unterweiser Nachname</label>
-      <input type="text" name="instructor-last" id="instructor-last-input" />
-    </div>
-
-    <div id="date">
-      <label for="date-input">Datum</label>
-      <input type="date" name="date" id="date-input" />
-    </div>
-
-    <div id="time">
-      <label for="time-input">Uhrzeit</label>
-      <input type="time" name="time" id="time-input" />
-    </div>
-
-    <div id="state">
-      <label for="state-input">Stand vom</label>
-      <input type="date" name="state" id="state-input" />
-    </div>
-
-    <div id="location">
-      <label for="location-input">Ort</label>
-      <input type="text" name="location" id="location-input" />
-    </div>
-
-    <div id="participants">
-      <button type="button" hx-post="/add-participant/" hx-target="#participants" hx-swap="beforeend"
-        hx-trigger="click">
-        +
-      </button>
-
-      <div id="participant-{{ . }}">
-        <label for="participant-first-input-{{ . }}">Vorname</label>
-        <input type="text" name="participant-first-{{ . }}" id="participant-first-input-{{ . }}" />
-
-        <label for="participant-last-input-{{ . }}">Nachname</label>
-        <input type="text" name="participant-last-{{ . }}" id="participant-last-input-{{ . }}" />
-
-        <label for="participant-company-input-{{ . }}">Firma</label>
-        <input type="text" name="participant-company-{{ . }}" id="participant-company-input-{{ . }}" />
-      </div>
-    </div>
-
-    <button type="submit" hx-post="/submit/">
-      Senden
-    </button>
-  </form>
+  <div id="content">
+    {{ template "content" . }}
+  </div>
 
   <script src="/static/js/htmx.min.js" type="text/javascript"></script>
 </body>

templates/login.html

@@ -0,0 +1,17 @@
+{{ define "content" }}
+<h2>Anmeldung</h2>
+
+<form>
+  <input autocomplete="off" id="login-input" name="login" placeholder="Code" required type="text" />
+
+  <div>
+    <button type="submit" hx-post="/internal-login/" hx-target="#content">
+      Intern
+    </button>
+
+    <button type="submit" hx-post="/external-login/" hx-target="#content">
+      Gast
+    </button>
+  </div>
+</form>
+{{ end }}

templates/participant.html

@@ -1,12 +1,16 @@
-{{ define "participant" }}
-<div id="participant-{{ . }}">
-  <label for="participant-first-input-{{ . }}">Vorname</label>
-  <input type="text" name="participant-first-{{ . }}" id="participant-first-input-{{ . }}" />
+{{ define "content" }}
+<form>
+  <label for="first-{{ .Login }}">Vorname</label>
+  <input type="text" name="first-{{ .Login }}" id="first-{{ .Login }}" />
 
-  <label for="participant-last-input-{{ . }}">Nachname</label>
-  <input type="text" name="participant-last-{{ . }}" id="participant-last-input-{{ . }}" />
+  <label for="last-{{ .Login }}">Nachname</label>
+  <input type="text" name="last-{{ .Login }}" id="last-{{ .Login }}" />
 
-  <label for="participant-company-input-{{ . }}">Firma</label>
-  <input type="text" name="participant-company-{{ . }}" id="participant-company-input-{{ . }}" />
-</div>
+  <label for="company-{{ .Login }}">Firma</label>
+  <input type="text" name="company-{{ .Login }}" id="company-{{ .Login }}" />
+
+  <button type="button" hx-post="/submit-participant/{{ .SessionID }}/{{ .Login }}/" hx-target="#content">
+    Fertig
+  </button>
+</form>
 {{ end }}

templates/question.html

@@ -0,0 +1,21 @@
+{{define "answers"}}
+{{range .Question.Answers}}
+<div>
+  <input type="radio" name="answer" id="answer-{{.ID}}" value="{{.ID}}" />
+  <label for="answer-{{.ID}}">{{.Text}}</label>
+</div>
+{{end}}
+{{end}}
+
+{{define "content"}}
+<h2>Frage {{.QuestionID}}</h2>
+<p>{{.Question.Text}}</p>
+
+<form>
+  {{template "answers" .}}
+
+  <button hx-post="/submit-answer/{{.SessionID}}/{{.Login}}/{{.QuestionID}}/" hx-target="#content" type="submit">
+    Weiter
+  </button>
+</form>
+{{end}}

templates/result.html

@@ -0,0 +1,18 @@
+{{define "answers"}}
+{{range .Answers}}
+<p class="{{if and .Chosen .Correct}} correct {{else if and .Chosen (not .Correct)}} incorrect {{end}}">
+  {{.Text}}
+</p>
+{{end}}
+{{end}}
+
+{{define "content"}}
+<p>{{.Incorrect}} Fehler</p>
+{{range .Questions}}
+<p>{{.Text}}</p>
+{{template "answers" .}}
+{{end}}
+{{if gt .Incorrect 0}}
+<button hx-post="/retry/{{.SessionID}}/{{.Login}}/" hx-target="#content" type="submit">Wiederholen</button>
+{{end}}
+{{end}}

templates/table.html

@@ -0,0 +1,49 @@
+{{ define "rows" }}
+{{ range . }}
+<tr>
+  <td>{{ .InstructorFirstName }}</td>
+  <td>{{ .InstructorLastName }}</td>
+  <td>{{ .BriefingDate }}</td>
+  <td>{{ .BriefingTime }}</td>
+  <td>{{ .BriefingLocation }}</td>
+  <td>{{ .BriefingDocumentName }}</td>
+  <td>{{ .BriefingAsOf }}</td>
+  <td>{{ .ParticipantFirstName }}</td>
+  <td>{{ .ParticipantLastName }}</td>
+  <td>{{ .ParticipantCompany }}</td>
+</tr>
+{{ end }}
+{{ end }}
+
+{{ define "content" }}
+<form>
+  <label for="search-input">Suche</label>
+  <input type="text" name="search" id="search-input" hx-post="/search/" hx-target="#results" hx-swap="innerHTML"
+    hx-trigger="keyup changed delay:200ms" />
+</form>
+
+<form>
+  <button type="submit" hx-post="/new-briefing/" hx-target="#content" hx-swap="innerHTML">
+    Neue Unterweisung
+  </button>
+</form>
+
+<table>
+  <thead>
+    <tr>
+      <th colspan="2">Unterweiser</th>
+      <th>Datum</th>
+      <th>Uhrzeit</th>
+      <th>Ort</th>
+      <th>Dokument</th>
+      <th>Stand</th>
+      <th colspan="2">Teilnehmer</th>
+      <th>Firma</th>
+    </tr>
+  </thead>
+
+  <tbody id="results">
+    {{ template "rows" . }}
+  </tbody>
+</table>
+{{ end }}