#!/user/bin/env fish

source "$DOT/script/utils.fish"

# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

function brew_prefix
    set -f path (brew --prefix 2>/dev/null)

    if [ -n $path ]
        printf '%s' "$path"
        return 0
    else
        print_error "Homebrew (get prefix)"
        return 1
    end
end

function brew_tap -a tap
    brew tap "$tap" &>/dev/null
end

function brew_update
    execute "brew update" "Homebrew (update)"
end

function brew_upgrade
    execute "brew upgrade" "Homebrew (upgrade)"
end

# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

function brew_install -a formula_readable_name formula arguments tap_value service
    # Check that Homebrew is installed
    if ! cmd_exists brew
        print_error "$formula_readable_name ('Homebrew' is not installed)"
    end

    # If 'brew tap' needs to be executed, check if it executed correctly.
    if [ -n "$tap_value" ]
        if ! brew_tap "$tap_value"
            print_error "$formula_readable_name ('brew tap $tap_value' failed)"
            return 1
        end
    end

    # Determine if a service needs to be started & restarted on login.
    if set -q service
        set -f service_cmd "&& brew services start $formula"
    end

    # Install the formula.
    if brew list "$formula" &>/dev/null
        print_success "$formula_readable_name"
    else
        execute "brew install $formula $arguments $service_cmd" \
            "$formula_readable_name"
    end
end