feat: finish add and remove author bindings and tui elements

src_code/go_src/cmd/tui/tui_create_author.go

@@ -5,6 +5,7 @@ package tui
 
 import (
 	"fmt"
+	"main/src_code/go_src/cmd/utils"
 	"os"
 	"strings"
 
@@ -179,7 +180,7 @@ func (m model_ca) View() string {
 	return b.String()
 }
 
-func Entry_CA() {
+func Entry_CA() string{
 	m, err := tea.NewProgram(initialModel()).Run()
 	if err != nil {
 		fmt.Printf("could not start program: %s\n", err)
@@ -201,6 +202,7 @@ func Entry_CA() {
 		defer f.Close()
 
 		sb := strings.Builder{}
+		sb.WriteRune('\n')
 
 		sb.WriteString(fmt.Sprintf("%s|%s|%s|%s", 
 		m.(model_ca).inputs[0].Value(), 
@@ -216,11 +218,13 @@ func Entry_CA() {
 			sb.WriteString(fmt.Sprintf(";;%s", m.(model_ca).inputs[4].Value()))
 		}
 
-		sb.WriteRune('\n')
+		//sb.WriteRune('\n')
 
 		if _, err = f.WriteString(sb.String()); err != nil {
 			panic(err)
 		}
+		utils.Define_users(utils.Find_authorfile())
+		return m.(model_ca).inputs[0].Value()
 	}
-
+	return ""
 }

src_code/go_src/cmd/tui/tui_list.go

@@ -33,12 +33,15 @@ var selected = map[string]item{}
 
 var negation = false
 
+var dupProtect = map[string]string{}
+
 type listKeyMap struct {
 	selectAll    key.Binding
 	negation  	 key.Binding
 	groupSelect  key.Binding
 	selectOne    key.Binding
 	createAuthor key.Binding
+	deleteAuthor key.Binding
 }
 
 func newListKeyMap() *listKeyMap {
@@ -63,6 +66,10 @@ func newListKeyMap() *listKeyMap {
 			key.WithKeys("C"),
 			key.WithHelp("C", "Create new author"),
 		),
+		deleteAuthor: key.NewBinding(
+			key.WithKeys("D"),
+			key.WithHelp("D", "Delete author"),
+		),
 	}
 }
 
@@ -174,7 +181,19 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 				// group code goes here
 			
 			case key.Matches(msg, m.keys.createAuthor):
-				Entry_CA()
+				author := Entry_CA()
+				if author != "" {
+					item_str := utils.Users[author].Username + " - " + utils.Users[author].Email
+					dupProtect[item_str] = author
+					m.list.InsertItem(len(m.list.Items())+1,item(item_str))
+				}
+				return m, tea.ClearScreen
+			case key.Matches(msg, m.keys.deleteAuthor):
+				author_str := string(m.list.SelectedItem().(item))
+				author := dupProtect[author_str]
+				utils.DeleteOneAuthor(author)
+				delete(dupProtect, author_str)
+				m.list.RemoveItem(m.list.Index())
 				return m, tea.ClearScreen
 		}
 		// extra key options
@@ -206,7 +225,6 @@ func (m model) View() string {
 //TODO: pass list in as a param to allow for group selection using same template
 func Entry() []string {
 	items := []list.Item{}
-	dupProtect := map[string]string{}
 
 	listKeys := newListKeyMap()
 

src_code/go_src/cmd/utils/author_file_utils.go

@@ -1,8 +1,11 @@
 package utils
 
 import (
+	"bufio"
+	"bytes"
 	"fmt"
 	"os"
+	"regexp"
 )
 
 // Author file utils is a package that contains functions that are used to read
@@ -42,3 +45,53 @@ func CheckAuthorFile() string {
 	// This string output is mostly for convenience can mostly be ignored
 	return authorfile
 }
+
+func DeleteOneAuthor(author string) {
+	//author_file := Find_authorfile()
+
+	author_file := "author_file"
+
+	// open author_file
+	file, err := os.OpenFile(author_file, os.O_RDWR, 0644)
+	if err != nil {
+		fmt.Println("Error opening file: ", err)
+		return
+	}
+
+	defer file.Close()
+
+	// create regex to capture author line
+	regexp, err := regexp.Compile(fmt.Sprintf("^(.+\\|%s\\|.+|%s\\|.+\\|.+)$",author,author))
+	if err != nil {
+		fmt.Println("Error compiling regex: ", err)
+		return
+	}
+	
+	var b []byte
+    buf := bytes.NewBuffer(b)
+
+	// create a scanner for the file
+	scanner := bufio.NewScanner(file)
+
+	// write the header to the buffer
+	scanner.Scan()
+	buf.WriteString(scanner.Text() + "\n")
+
+	// check if author matches the regex and skip
+	for scanner.Scan() {
+		line := scanner.Text()
+		if regexp.MatchString(line) {
+			continue
+		}
+		buf.WriteString(line + "\n")
+
+	}
+	// remove the last newline character
+	buf.Truncate(buf.Len()-1)
+
+	file.Truncate(0)
+	file.Seek(0,0)
+	buf.WriteTo(file)
+
+	RemoveUser(author)
+}

src_code/go_src/cmd/utils/user_util.go

@@ -67,3 +67,7 @@ func Define_users(author_file string)  {
 		os.Exit(2)
 	}
 }
+
+func RemoveUser(short string) {
+	delete(Users, short)
+}