feat: list exercises

1 files changed, 45 insertions, 0 deletions

diff --git a/src/exercises/list.go b/src/exercises/list.go
new file mode 100644
index 0000000..3719527
--- /dev/null
+++ b/src/exercises/list.go
@@ -0,0 +1,45 @@
+package exercises
+
+import (
+	"os"
+
+	"github.com/pelletier/go-toml/v2"
+)
+
+type State int
+
+const (
+	Pending State = iota + 1
+	Done
+)
+
+func (s State) String() string {
+	return [...]string{"Pending", "Done"}[s-1]
+}
+
+type Exercise struct {
+	Name  string
+	Path  string
+	Mode  string
+	Hint  string
+	State State
+}
+
+type Info struct {
+	Exercises []Exercise
+}
+
+func List() ([]Exercise, error) {
+	var info Info
+
+	data, err := os.ReadFile("info.toml")
+	if err != nil {
+		return info.Exercises, err
+	}
+
+	if err := toml.Unmarshal(data, &info); err != nil {
+		return info.Exercises, err
+	}
+
+	return info.Exercises, nil
+}