init

Signed-off-by: Hadi <112569860+anotherhadi@users.noreply.github.com>

ilovetui.go

@@ -0,0 +1,116 @@
+// Package ilovetui provides a shared Base16 color theme for bubbletea/lipgloss
+// applications. The theme is loaded automatically on import from
+// ~/.config/ilovetui/config.yaml (falling back to the embedded
+// default config). Access colors and styles via the package-level variable S.
+//
+//	import "github.com/anotherhadi/ilovetui"
+//
+//	style := lipgloss.NewStyle().Foreground(ilovetui.S.Primary)
+//	box   := ilovetui.RenderWithTitle(ilovetui.S.PanelFocused, "Title", content, w, h)
+package ilovetui
+
+import (
+	_ "embed"
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"gopkg.in/yaml.v3"
+)
+
+//go:embed default.yaml
+var DefaultConfig []byte
+
+// S is the active theme. It is populated automatically at import time and can
+// be reloaded at any point by calling Init, InitFrom, or InitFromBytes.
+var S Styles
+
+func init() {
+	path := DefaultConfigPath()
+	if data, err := os.ReadFile(path); err == nil {
+		if s, err := stylesFromBytes(data); err == nil {
+			S = s
+			return
+		}
+	}
+	// Silent fallback: embedded default always works.
+	s, _ := stylesFromBytes(DefaultConfig)
+	S = s
+}
+
+// Init reloads S from the user config file, falling back to the embedded
+// default if the file is missing. Returns an error only on parse failures.
+func Init() error {
+	path := DefaultConfigPath()
+	data, err := os.ReadFile(path)
+	if err != nil {
+		s, e := stylesFromBytes(DefaultConfig)
+		if e != nil {
+			return e
+		}
+		S = s
+		return nil
+	}
+	return InitFromBytes(data)
+}
+
+// InitFrom reloads S from an explicit file path.
+func InitFrom(path string) error {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return fmt.Errorf("ilovetui: read config: %w", err)
+	}
+	return InitFromBytes(data)
+}
+
+// InitFromBytes reloads S from raw YAML. Accepts hex strings with or without
+// the leading '#'.
+func InitFromBytes(data []byte) error {
+	s, err := stylesFromBytes(data)
+	if err != nil {
+		return err
+	}
+	S = s
+	return nil
+}
+
+// WriteDefaultConfig writes the embedded default config to path, creating
+// parent directories as needed. No-op if the file already exists.
+func WriteDefaultConfig(path string) error {
+	if _, err := os.Stat(path); err == nil {
+		return nil
+	}
+	if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
+		return fmt.Errorf("ilovetui: create config dir: %w", err)
+	}
+	if err := os.WriteFile(path, DefaultConfig, 0o600); err != nil {
+		return fmt.Errorf("ilovetui: write config: %w", err)
+	}
+	return nil
+}
+
+// DefaultConfigPath returns the canonical user config path,
+// respecting $XDG_CONFIG_HOME.
+func DefaultConfigPath() string {
+	return filepath.Join(configDir(), "ilovetui", "config.yaml")
+}
+
+func stylesFromBytes(data []byte) (Styles, error) {
+	var base configYAML
+	if err := yaml.Unmarshal(DefaultConfig, &base); err != nil {
+		return Styles{}, fmt.Errorf("ilovetui: parse default config: %w", err)
+	}
+	var user configYAML
+	if err := yaml.Unmarshal(data, &user); err != nil {
+		return Styles{}, fmt.Errorf("ilovetui: parse config: %w", err)
+	}
+	return newStyles(mergeColors(base.Colors, user.Colors)), nil
+}
+
+func configDir() string {
+	if dir := os.Getenv("XDG_CONFIG_HOME"); dir != "" {
+		return dir
+	}
+	home, _ := os.UserHomeDir()
+	return filepath.Join(home, ".config")
+}