|
| 1 | +package cli |
| 2 | + |
| 3 | +import ( |
| 4 | + "errors" |
| 5 | + "fmt" |
| 6 | + "io" |
| 7 | + "strings" |
| 8 | + |
| 9 | + "github.com/spf13/cobra" |
| 10 | + "github.com/vmrocha/bible-terminal/internal/config" |
| 11 | + "github.com/vmrocha/bible-terminal/internal/render" |
| 12 | +) |
| 13 | + |
| 14 | +// PreferenceStore persists CLI defaults. |
| 15 | +type PreferenceStore interface { |
| 16 | + Path() string |
| 17 | + Load() (config.Preferences, error) |
| 18 | + Save(config.Preferences) error |
| 19 | + Reset() error |
| 20 | +} |
| 21 | + |
| 22 | +// WithPreferenceStore enables persistent CLI preferences. |
| 23 | +func WithPreferenceStore(store PreferenceStore) Option { |
| 24 | + return func(configuration *configuration) { |
| 25 | + configuration.preferenceStore = store |
| 26 | + } |
| 27 | +} |
| 28 | + |
| 29 | +func newConfigCommand( |
| 30 | + store PreferenceStore, |
| 31 | + settings *outputSettings, |
| 32 | + isTerminal func(io.Writer) bool, |
| 33 | +) *cobra.Command { |
| 34 | + command := &cobra.Command{ |
| 35 | + Use: "config", |
| 36 | + Short: "Inspect and update persistent preferences", |
| 37 | + } |
| 38 | + command.AddCommand(newConfigPathCommand(store)) |
| 39 | + command.AddCommand(newConfigShowCommand(store, settings, isTerminal)) |
| 40 | + command.AddCommand(newConfigSetCommand(store)) |
| 41 | + command.AddCommand(newConfigResetCommand(store)) |
| 42 | + return command |
| 43 | +} |
| 44 | + |
| 45 | +func newConfigPathCommand(store PreferenceStore) *cobra.Command { |
| 46 | + return &cobra.Command{ |
| 47 | + Use: "path", |
| 48 | + Short: "Print the effective configuration path", |
| 49 | + Args: cobra.NoArgs, |
| 50 | + RunE: func(command *cobra.Command, _ []string) error { |
| 51 | + if store == nil { |
| 52 | + return errors.New("configuration is unavailable") |
| 53 | + } |
| 54 | + _, err := fmt.Fprintln(command.OutOrStdout(), store.Path()) |
| 55 | + return err |
| 56 | + }, |
| 57 | + } |
| 58 | +} |
| 59 | + |
| 60 | +func newConfigShowCommand( |
| 61 | + store PreferenceStore, |
| 62 | + settings *outputSettings, |
| 63 | + isTerminal func(io.Writer) bool, |
| 64 | +) *cobra.Command { |
| 65 | + return &cobra.Command{ |
| 66 | + Use: "show", |
| 67 | + Short: "Show the effective persistent preferences", |
| 68 | + Args: cobra.NoArgs, |
| 69 | + RunE: func(command *cobra.Command, _ []string) error { |
| 70 | + if store == nil { |
| 71 | + return errors.New("configuration is unavailable") |
| 72 | + } |
| 73 | + preferences, err := store.Load() |
| 74 | + if err != nil { |
| 75 | + return err |
| 76 | + } |
| 77 | + return render.Preferences( |
| 78 | + command.OutOrStdout(), |
| 79 | + store.Path(), |
| 80 | + preferences, |
| 81 | + renderOptions(command, settings, isTerminal), |
| 82 | + ) |
| 83 | + }, |
| 84 | + } |
| 85 | +} |
| 86 | + |
| 87 | +func newConfigSetCommand(store PreferenceStore) *cobra.Command { |
| 88 | + return &cobra.Command{ |
| 89 | + Use: "set <preference> <value>", |
| 90 | + Short: "Save a persistent preference", |
| 91 | + Args: cobra.ExactArgs(2), |
| 92 | + ValidArgs: []string{"translation", "plain", "color"}, |
| 93 | + RunE: func(command *cobra.Command, args []string) error { |
| 94 | + if store == nil { |
| 95 | + return errors.New("configuration is unavailable") |
| 96 | + } |
| 97 | + preferences, err := store.Load() |
| 98 | + if err != nil { |
| 99 | + return err |
| 100 | + } |
| 101 | + key := strings.ToLower(args[0]) |
| 102 | + value, err := updatePreference(&preferences, key, args[1]) |
| 103 | + if err != nil { |
| 104 | + return err |
| 105 | + } |
| 106 | + if err := store.Save(preferences); err != nil { |
| 107 | + return err |
| 108 | + } |
| 109 | + _, err = fmt.Fprintf(command.OutOrStdout(), "saved %s=%s\n", key, value) |
| 110 | + return err |
| 111 | + }, |
| 112 | + } |
| 113 | +} |
| 114 | + |
| 115 | +func newConfigResetCommand(store PreferenceStore) *cobra.Command { |
| 116 | + return &cobra.Command{ |
| 117 | + Use: "reset", |
| 118 | + Short: "Remove saved preferences", |
| 119 | + Args: cobra.NoArgs, |
| 120 | + RunE: func(command *cobra.Command, _ []string) error { |
| 121 | + if store == nil { |
| 122 | + return errors.New("configuration is unavailable") |
| 123 | + } |
| 124 | + if err := store.Reset(); err != nil { |
| 125 | + return err |
| 126 | + } |
| 127 | + _, err := fmt.Fprintln(command.OutOrStdout(), "configuration reset") |
| 128 | + return err |
| 129 | + }, |
| 130 | + } |
| 131 | +} |
| 132 | + |
| 133 | +func updatePreference(preferences *config.Preferences, key, rawValue string) (string, error) { |
| 134 | + switch key { |
| 135 | + case "translation": |
| 136 | + value := strings.ToLower(rawValue) |
| 137 | + if value == "webp" { |
| 138 | + value = "engwebp" |
| 139 | + } |
| 140 | + if value != "engwebp" { |
| 141 | + return "", fmt.Errorf("translation is not available: %s", rawValue) |
| 142 | + } |
| 143 | + preferences.Translation = value |
| 144 | + return value, nil |
| 145 | + case "plain": |
| 146 | + value, err := strictBoolean(rawValue) |
| 147 | + if err != nil { |
| 148 | + return "", fmt.Errorf("plain: %w", err) |
| 149 | + } |
| 150 | + preferences.Plain = value |
| 151 | + return fmt.Sprint(value), nil |
| 152 | + case "color": |
| 153 | + value, err := strictBoolean(rawValue) |
| 154 | + if err != nil { |
| 155 | + return "", fmt.Errorf("color: %w", err) |
| 156 | + } |
| 157 | + preferences.Color = value |
| 158 | + return fmt.Sprint(value), nil |
| 159 | + default: |
| 160 | + return "", fmt.Errorf("unknown preference %q; expected translation, plain, or color", key) |
| 161 | + } |
| 162 | +} |
| 163 | + |
| 164 | +func strictBoolean(value string) (bool, error) { |
| 165 | + switch strings.ToLower(value) { |
| 166 | + case "true": |
| 167 | + return true, nil |
| 168 | + case "false": |
| 169 | + return false, nil |
| 170 | + default: |
| 171 | + return false, fmt.Errorf("expected true or false, got %q", value) |
| 172 | + } |
| 173 | +} |
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