#!/usr/bin/env bash
set -e

help-table() {
    local cmd_width=20
    local opt_width=10
    local desc_width=42
    local column="| %-${cmd_width}s | %-${opt_width}s | %-${desc_width}s |\n"

    printf "$column" 'Command' 'Option' 'Description'
    echo "|$(printf '%*s' $((cmd_width + 2)) '' | tr ' ' '-')|$(printf '%*s' $((opt_width + 2)) '' | tr ' ' '-')|$(printf '%*s' $((desc_width + 2)) '' | tr ' ' '-')|"
    printf "$column" 'all' '' 'Run all tasks.'
    printf "$column" 'build-11ty' '' 'Build the 11ty website.'
    printf "$column" 'build-image' '[output]' 'Build Docker image with buildx.'
    printf "$column" 'commit-with-llm' '' 'Commit with llm generated commit message.'
    printf "$column" 'dev-11ty' '' 'Run 11ty server.'
    printf "$column" 'help' '[grep]' 'Show help for commands.'
    printf "$column" 'install' '' 'Install node packages.'
    printf "$column" 'lint' '' 'Lint code with prettier.'
    printf "$column" 'run' '' 'Run Docker image.'
    printf "$column" 'run-tests' '' 'Test with shellcheck.'
    printf "$column" 'serve-11ty' '' 'Serve the 11ty output folder.'
    printf "$column" 'version' '' 'Show version of required tools.'
}

help() {
    echo
    if [[ -n "$1" ]]; then
        help-table | grep -i "$1" | column -t -s'|'
    else
        echo "task <command> [options]"
        echo
        echo "commands:"
        echo
        help-table
    fi
    echo
}

clone-taskfile(){
    if [[ ! -d "$HOME/taskfile.build" ]]; then
        echo -e '\033[38;5;214mGit\033[0m: Clone taskfile repo'
        git clone https://git.taskfile.build "$HOME/taskfile.build"
    else
        echo -e '\033[38;5;214mGit\033[0m: Pull taskfile repo'
        git -C "$HOME/taskfile.build" pull
    fi
}

if [[ -d "$HOME/taskfile.build/bin" ]]; then
    for file in "$HOME/taskfile.build/bin/"*; do
        if [[ -f "$file" ]]; then
            source "$file"
        fi
    done
fi

# Static vars

BUILDX_PLATFORM="linux/amd64"
CONTAINER_REGISTRY="janikvonrotz"
CONTAINER_TAG="taskfile.build:latest"
DOCKERFILE="image/Dockerfile"

# Project commands

run() {
    echo "Open http://localhost:8080 in your browser"
    docker run -p 8080:80 \
        -e GIT_URL="https://git.taskfile.build" \
        -e TASK_COMMANDS="install,build-11ty" \
        -e CADDY_ROOT="_site" \
        janikvonrotz/taskfile.build:latest
}

install() {
    pnpm install
}

dev-11ty() {
    open-with-os 'http://localhost:8080/' & pnpm dlx @11ty/eleventy --serve
}

lint() {
    pnpm exec prettier . --write
}

run-tests() {
    echo "Test with shellcheck."
    shellcheck task
}

build-11ty() {
    pnpm dlx @11ty/eleventy
}

serve-11ty() {
    pnpx serve ./_site
}

version() {
    echo "eleventy: $(pnpm dlx @11ty/eleventy --version)"
}

if [[ "$1" == *","* ]]; then
    # Split comma-separated commands
    IFS=',' read -ra COMMANDS <<< "$1"
    for cmd in "${COMMANDS[@]}"; do
        # Trim whitespace
        cmd=$(echo "$cmd" | xargs)
        if declare -f "$cmd" > /dev/null; then
            "$cmd"
        else
            echo "Unknown command: $cmd"
            help
            exit 1
        fi
    done
elif declare -f "$1" > /dev/null; then
    "$1" "${@:2}"
else
    case "$1" in
        all)
            install
            build-11ty
            ;;
        *)
            echo "Unknown command: $1"
            help
            exit 1
            ;;
    esac
fi