wt

#!/bin/bash
# wt creates a new git worktree and opens a terminal window in it.
#
# Uses gum for interactive input and nw to open the new terminal.
#
# Usage:
#   wt  # Interactive worktree creation
#
# Requires: git, gum, fzf, nw

set -e

# Exit if not in a git repo
if ! git rev-parse --is-inside-work-tree >/dev/null 2>&1; then
    echo "Error: not in a git repository"
    exit 1
fi

# Get the branch name from user
BRANCH_NAME=$(gum input --placeholder "Branch name (e.g., user/feature-name)")
if [[ -z "$BRANCH_NAME" ]]; then
    echo "Error: branch name is required"
    exit 1
fi

# Determine main branch name
MAIN_BRANCH=$(mainbranch)

# Get the starting point from user
GIT_REF=$(printf '%s\norigin/%s\nHEAD' "$MAIN_BRANCH" "$MAIN_BRANCH" | fzf \
    --preview 'git show --name-only {}' \
    --header "Select starting point for new branch")

if [[ -z "$GIT_REF" ]]; then
    echo "Error: starting point is required"
    exit 1
fi

# Get git root directory
GIT_ROOT=$(git rev-parse --show-toplevel)
PARENT_DIR=$(dirname "$GIT_ROOT")

# Extract directory name from branch (part after last /)
DIR_NAME="${BRANCH_NAME##*/}"

# Create worktree path as sibling to git root
WORKTREE_PATH="$PARENT_DIR/$DIR_NAME"

# Create the worktree with new branch
git worktree add -b "$BRANCH_NAME" "$WORKTREE_PATH" "$GIT_REF"

# Get absolute path (resolve any symlinks or relative components)
ABS_WORKTREE_PATH=$(cd "$WORKTREE_PATH" && pwd -P)

# Log the result
RELATIVE_PATH=$(python3 -c "import os; print(os.path.relpath('$WORKTREE_PATH'))")
gum log --level info "Branch: $BRANCH_NAME"
gum log --level info "Worktree: $RELATIVE_PATH"

# Open new terminal window in the worktree
nw --working-directory "$ABS_WORKTREE_PATH"