From 9bfdfb7f07270fdd811f76007e59799485d209d3 Mon Sep 17 00:00:00 2001
From: V <vlad@dev.local>
Date: Sun, 28 Sep 2025 21:15:55 +0100
Subject: [PATCH] 1st commit, making a pokedex lol

---
 .gitignore      |  2 ++
 command_exit.go | 12 +++++++++
 command_help.go | 15 +++++++++++
 go.mod          |  3 +++
 main.go         |  5 ++++
 repl.go         | 67 +++++++++++++++++++++++++++++++++++++++++++++++++
 repl_test.go    | 59 +++++++++++++++++++++++++++++++++++++++++++
 7 files changed, 163 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 command_exit.go
 create mode 100644 command_help.go
 create mode 100644 go.mod
 create mode 100644 main.go
 create mode 100644 repl.go
 create mode 100644 repl_test.go

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..51aa5bb
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+pokedexcli
+repl.log
diff --git a/command_exit.go b/command_exit.go
new file mode 100644
index 0000000..ca866ff
--- /dev/null
+++ b/command_exit.go
@@ -0,0 +1,12 @@
+package main
+
+import (
+	"fmt"
+	"os"
+)
+
+func commandExit() error {
+	fmt.Println("Closing the Pokedex... Goodbye!")
+	os.Exit(0)
+	return nil
+}
diff --git a/command_help.go b/command_help.go
new file mode 100644
index 0000000..6e389cf
--- /dev/null
+++ b/command_help.go
@@ -0,0 +1,15 @@
+package main
+
+import (
+	"fmt"
+)
+
+
+func commandHelp() error {
+	fmt.Print("Pokedex CLI - available commands:\n\n")
+	for _, v := range getCommands() {
+		fmt.Printf("%s		%s\n", v.name, v.description)
+	}
+	fmt.Println()
+	return nil
+}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..0e362a9
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module k3gtpi.jumpingcrab.com/go-learning/pokedexcli
+
+go 1.24.5
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..0840565
--- /dev/null
+++ b/main.go
@@ -0,0 +1,5 @@
+package main
+
+func main() {
+	startRepl()
+}
diff --git a/repl.go b/repl.go
new file mode 100644
index 0000000..89366f4
--- /dev/null
+++ b/repl.go
@@ -0,0 +1,67 @@
+package main
+
+import (
+	"fmt"
+	"strings"
+	"bufio"
+	"os"
+)
+
+type cliCommand struct {
+	name		string
+	description	string
+	callback	func() error
+}
+
+var supportedCommands map[string]cliCommand
+
+func startRepl() {
+	reader := bufio.NewScanner(os.Stdin)
+	fmt.Println("Welcome to the Pokedex!")
+	for {
+		// Print prompt
+		fmt.Printf("Pokedex > ")
+		reader.Scan()
+
+		words := cleanInput(reader.Text())
+		if len(words) == 0 {
+			continue
+		}
+
+		commandName := words[0]	
+
+		command, valid := getCommands()[commandName]
+		if !valid {
+			fmt.Println("Unknown command.")
+			continue
+		}
+		if err := command.callback(); err != nil {
+			fmt.Printf("Encountered error running command: %v\n", command.name)
+		}
+	}
+}
+
+func cleanInput(text string) []string {
+	if len(text) == 0 {
+		fmt.Println("Input is empty!")
+		return []string{}
+	}
+	output := strings.ToLower(text)
+	words := strings.Fields(output)
+	return words
+}
+
+func getCommands() map[string]cliCommand{
+	return map[string]cliCommand{
+		"help": {
+			name:			"help",
+			description:	"Prints this help menu.",
+			callback:		commandHelp,
+		},
+		"exit": {
+			name:			"exit",
+			description:	"Exits the Pokedex",
+			callback:		commandExit,
+		},
+	}
+}
diff --git a/repl_test.go b/repl_test.go
new file mode 100644
index 0000000..e6a58da
--- /dev/null
+++ b/repl_test.go
@@ -0,0 +1,59 @@
+package main
+
+import (
+	"testing"
+	"fmt"
+)
+
+func TestCleanInput(t * testing.T) {
+	cases := []struct {
+		input		string
+		expected	[]string
+	}{
+		{
+			input: 		" hello world ",
+			expected: 	[]string{"hello", "world"},
+		},
+		{
+			input:		"Charmander Bulbasaur PIKACHU",
+			expected:	[]string{"charmander", "bulbasaur", "pikachu"},
+		},
+		{
+			input:		"",
+			expected:	[]string{},
+		},
+	}
+	successCount := 0
+	failCount := 0
+	passed := true
+
+	for _, c := range cases {
+		output := cleanInput(c.input)
+		for i := range output {
+			word := output[i]
+			expectedWord := c.expected[i]
+			if word != expectedWord {
+				passed = false
+				break
+			}
+		}
+		if !passed {
+			t.Errorf(`
+===================
+Input: 		%v
+Expected: 	%v
+Output:		%v
+`, c.input, c.expected, output)
+			failCount++
+		} else {
+			fmt.Printf(`
+===================
+Input: 		%v
+Expected: 	%v
+Output:		%v
+`, c.input, c.expected, output)	
+			successCount++
+		}
+	}
+	fmt.Printf("%d passed, %d failed", successCount, failCount)
+}