move src file to seperate direcotry

src/service/config_file.go

@@ -0,0 +1,189 @@
+package service
+
+import (
+	"encoding/json"
+	"errors"
+	"os"
+	"os/user"
+	"path/filepath"
+	"slices"
+)
+
+type fileConfig struct {
+	path        string
+	User        string       `json:"user"`
+	UserAliases []*Alias     `json:"aliases"`
+	Serve       ServerConfig `json:"serve"`
+	Remote      ServerConfig `json:"remote"`
+	OIDC        OIDCConfig   `json:"oidc"`
+}
+
+var defaultAliases = []*Alias{
+	{Name: "mine", Command: "list --assignee $me --type issue --status open", Description: "Show open issues assigned to you"},
+	{Name: "due", Command: "list --type issue --status open", Description: "Show open issues"},
+	{Name: "inbox", Command: "list --mention $me", Description: "Show your inbox"},
+}
+
+func LoadConfigFile() (Config, error) {
+	path, err := findConfigPath()
+	if err != nil {
+		return nil, err
+	}
+	return loadConfig(path)
+}
+
+func loadConfig(path string) (*fileConfig, error) {
+	fc := &fileConfig{path: path, UserAliases: []*Alias{}}
+	data, err := os.ReadFile(path)
+	if err != nil {
+		if !os.IsNotExist(err) {
+			return nil, err
+		}
+	} else {
+		if err := json.Unmarshal(data, fc); err != nil {
+			return nil, err
+		}
+	}
+	return fc, nil
+}
+
+func findConfigPath() (string, error) {
+	dir, err := filepath.Abs(".")
+	if err != nil {
+		return "", err
+	}
+	for {
+		p := filepath.Join(dir, ".axconfig")
+		if _, err := os.Stat(p); err == nil {
+			return p, nil
+		}
+		if parent := filepath.Dir(dir); parent == dir {
+			break
+		} else {
+			dir = parent
+		}
+	}
+	home, err := os.UserHomeDir()
+	if err != nil {
+		return "", err
+	}
+	return filepath.Join(home, ".config", "ax", "config.json"), nil
+}
+
+func (c *fileConfig) GetUser() string {
+	if c.User != "" {
+		return c.User
+	}
+	if u := os.Getenv("AX_USER"); u != "" {
+		return u
+	}
+	if u, err := user.Current(); err == nil {
+		return u.Username
+	}
+	return "unknown"
+}
+
+func (c *fileConfig) SetUser(username string) error {
+	c.User = username
+	return c.Save()
+}
+
+func (c *fileConfig) GetAlias(name string) (*Alias, error) {
+	for _, a := range c.UserAliases {
+		if a.Name == name {
+			return a, nil
+		}
+	}
+	for _, a := range defaultAliases {
+		if a.Name == name {
+			return a, nil
+		}
+	}
+	return nil, errors.New("alias not found")
+}
+
+func (c *fileConfig) SetAlias(alias *Alias) error {
+	for i, a := range c.UserAliases {
+		if a.Name == alias.Name {
+			c.UserAliases[i] = alias
+			return c.Save()
+		}
+	}
+	c.UserAliases = append(c.UserAliases, alias)
+	return c.Save()
+}
+
+func (c *fileConfig) DeleteAlias(name string) error {
+	for i, a := range c.UserAliases {
+		if a.Name == name {
+			c.UserAliases = slices.Delete(c.UserAliases, i, i+1)
+			return c.Save()
+		}
+	}
+	for _, a := range defaultAliases {
+		if a.Name == name {
+			return errors.New("cannot delete default alias")
+		}
+	}
+	return errors.New("alias not found")
+}
+
+func (c *fileConfig) ListAliases() ([]*Alias, error) {
+	seen := make(map[string]bool)
+	var result []*Alias
+	for _, a := range c.UserAliases {
+		result = append(result, a)
+		seen[a.Name] = true
+	}
+	for _, a := range defaultAliases {
+		if !seen[a.Name] {
+			result = append(result, a)
+		}
+	}
+	return result, nil
+}
+
+func (c *fileConfig) GetOIDCConfig() (OIDCConfig, bool) {
+	if c.OIDC.Issuer == "" {
+		return OIDCConfig{}, false
+	}
+	cfg := c.OIDC
+	if cfg.UserClaim == "" {
+		cfg.UserClaim = "preferred_username"
+	}
+	return cfg, true
+}
+
+func (c *fileConfig) GetRemoteConfig() (ServerConfig, bool) {
+	if c.Remote.Host == "" {
+		return ServerConfig{}, false
+	}
+	port := c.Remote.Port
+	if port == 0 {
+		port = 7000
+	}
+	return ServerConfig{Host: c.Remote.Host, Port: port}, true
+}
+
+func (c *fileConfig) GetServerConfig() ServerConfig {
+	host := c.Serve.Host
+	if host == "" {
+		host = "localhost"
+	}
+	port := c.Serve.Port
+	if port == 0 {
+		port = 7000
+	}
+	return ServerConfig{Host: host, Port: port}
+}
+
+func (c *fileConfig) Save() error {
+	if err := os.MkdirAll(filepath.Dir(c.path), 0755); err != nil {
+		return err
+	}
+	data, err := json.MarshalIndent(c, "", "  ")
+	if err != nil {
+		return err
+	}
+	return os.WriteFile(c.path, data, 0644)
+}