feat: Add fish shell integration

5 files changed, 72 insertions, 2 deletions

diff --git a/README.md b/README.md
index 631134e..6d92f9f 100644
--- a/README.md
+++ b/README.md
@@ -29,3 +29,24 @@ sudo mv timr /usr/local/bin/
 *   `timr status`: Shows the current status of the timer (running or stopped) and the total elapsed time.
 *   `timr reset`: Resets the timer. This will set the elapsed time to zero.
 *   `timr live`: Shows a live, full-screen timer with keyboard controls (q: quit, s: start/stop, r: reset).
+
+## Fish Shell Integration
+
+`timr` can be integrated with the fish shell to display the current timer status in your prompt.
+
+### Installation
+
+1.  Copy the `integrations/fish-shell` directory to your fish plugins directory:
+
+    ```bash
+    cp -r integrations/fish-shell ~/.config/fish/plugins/timr
+    ```
+
+2.  Update your `fish_prompt` or `fish_right_prompt` function to include the `timr_prompt` function. For example, you can add the following to your `~/.config/fish/functions/fish_prompt.fish` file:
+
+    ```fish
+    function fish_prompt
+        # ... your existing prompt ...
+        printf ' %s' (timr_prompt)
+    end
+    ```
diff --git a/cmd/timr/main.go b/cmd/timr/main.go
index 534275b..0625070 100644
--- a/cmd/timr/main.go
+++ b/cmd/timr/main.go
@@ -27,6 +27,8 @@ func main() {
 		output, err = timer.GetStatus()
 	case "reset":
 		output, err = timer.ResetTimer()
+	case "prompt":
+		output, err = timer.GetPromptStatus()
 	case "live":
 		p := tea.NewProgram(live.NewModel())
 		if err := p.Start(); err != nil {
@@ -47,5 +49,5 @@ func main() {
 }
 
 func printUsage() {
-	fmt.Println("Usage: timr <start|stop|pause|status|reset|live>")
+	fmt.Println("Usage: timr <start|stop|pause|status|reset|live|prompt>")
 }
diff --git a/integrations/fish-shell/completions/timr.fish b/integrations/fish-shell/completions/timr.fish
new file mode 100644
index 0000000..b71ad60
--- /dev/null
+++ b/integrations/fish-shell/completions/timr.fish
@@ -0,0 +1,7 @@
+complete -c timr -n "__fish_use_subcommand" -a start -d "Start the timer"
+complete -c timr -n "__fish_use_subcommand" -a stop -d "Stop the timer"
+complete -c timr -n "__fish_use_subcommand" -a pause -d "Pause the timer"
+complete -c timr -n "__fish_use_subcommand" -a status -d "Show the timer status"
+complete -c timr -n "__fish_use_subcommand" -a reset -d "Reset the timer"
+complete -c timr -n "__fish_use_subcommand" -a live -d "Show the live timer"
+complete -c timr -n "__fish_use_subcommand" -a prompt -d "Show the prompt status"
diff --git a/integrations/fish-shell/functions/timr_prompt.fish b/integrations/fish-shell/functions/timr_prompt.fish
new file mode 100644
index 0000000..fe17bf1
--- /dev/null
+++ b/integrations/fish-shell/functions/timr_prompt.fish
@@ -0,0 +1,17 @@
+function timr_prompt -d "Display timr status in the prompt"
+    if command -v timr >/dev/null
+        set -l status (timr prompt)
+        if test -n "$status"
+            set -l icon (string sub -l 1 -- "$status")
+            set -l time (string sub -s 2 -- "$status")
+            if test "$icon" = "▶"
+                set_color green
+            else
+                set_color yellow
+            end
+            printf '%s' "$icon"
+            set_color normal
+            printf ' %s' "$time"
+        end
+    end
+end
diff --git a/internal/timer/operations.go b/internal/timer/operations.go
index 3035b58..71cf684 100644
--- a/internal/timer/operations.go
+++ b/internal/timer/operations.go
@@ -72,4 +72,27 @@ func ResetTimer() (string, error) {
 		return "", fmt.Errorf("error saving state: %w", err)
 	}
 	return "Timer reset.", nil
-}
\ No newline at end of file
+}
+
+func GetPromptStatus() (string, error) {
+	state, err := LoadState()
+	if err != nil {
+		return "", fmt.Errorf("error loading state: %w", err)
+	}
+
+	elapsed := state.ElapsedTime
+	if state.Running {
+		elapsed += time.Since(state.StartTime)
+	}
+
+	if elapsed == 0 {
+		return "", nil
+	}
+
+	icon := "⏸"
+	if state.Running {
+		icon = "▶"
+	}
+
+	return fmt.Sprintf("%s %s", icon, elapsed.Round(time.Second)), nil
+}