#!/bin/bash

# omarchy:summary=Install a theme from a git repository
# omarchy:args=[git-repo-url]
# omarchy:examples=omarchy theme install https://github.com/example/omarchy-example-theme.git
# omarchy:examples=omarchy theme install git@github.com:example/omarchy-example-theme.git

if [[ -z $1 ]]; then
  echo -e "\e[32mSee https://omarchy.org/themes/\n\e[0m"
  REPO_URL=$(gum input --placeholder="Git repo URL (https or git@host:org/repo.git)" --header="")
else
  REPO_URL="$1"
fi

if [[ -z $REPO_URL ]]; then
  exit 1
fi

# git reads a leading dash as an option, and `<helper>::<address>` as a remote
# helper to run. The helper name is a bare word at the very start, which is what
# this matches; an scp-style IPv6 host such as git@[2001:db8::1]:org/repo.git
# carries `::` too and must still clone.
if [[ $REPO_URL == -* || $REPO_URL =~ ^[A-Za-z0-9][A-Za-z0-9+.-]*:: ]]; then
  echo "Error: '$REPO_URL' names a git option or transport helper, not a repository."
  exit 1
fi

THEMES_DIR="$HOME/.config/omarchy/themes"

# Strip user@host: prefix from scp-style SSH URLs so basename sees just the path
REPO_PATH="$REPO_URL"
[[ $REPO_PATH != *"://"* && $REPO_PATH == *:*/* ]] && REPO_PATH="${REPO_PATH#*:}"
THEME_NAME=$(basename -- "$REPO_PATH" .git | sed -E 's/^omarchy-//; s/-theme$//' | tr '[:upper:]' '[:lower:]')
THEME_PATH="$THEMES_DIR/$THEME_NAME"

# The name comes from the URL and is joined into a path that is about to be
# removed, so a repo called `..` would take ~/.config/omarchy with it. A leading
# dot is refused with it: `host:-s/foo.git` leaves basename with `.git`.
if [[ -z $THEME_NAME || $THEME_NAME == .* || $THEME_NAME == */* ]]; then
  echo "Error: '$REPO_URL' does not give a usable theme name."
  exit 1
fi

# Remove existing theme if present
if [[ -d $THEME_PATH ]]; then
  rm -rf "$THEME_PATH"
fi

# Clone the repo directly to ~/.config/omarchy/themes
if ! git clone -- "$REPO_URL" "$THEME_PATH"; then
  echo "Error: Failed to clone theme repo."
  exit 1
fi

# Apply the new theme with omarchy-theme-set, which stages only the files an
# extra theme is allowed to contribute and names anything it dropped.
omarchy-theme-set "$THEME_NAME"