local api = vim.api

local function get(var, fallback)
    if vim.api.nvim_call_function('exists', { var }) == 1 then
        return vim.api.nvim_get_var(var)
    else
        return fallback
    end
end

local HAS_DEV_ICONS = api.nvim_call_function('exists', { "*WebDevIconsGetFileTypeSymbol" }) == 1

local show_icons = get('lua_tree_show_icons', { git = 1, folders = 1, files = 1 })

local SHOW_FILE_ICON = HAS_DEV_ICONS and show_icons.files == 1
local SHOW_FOLDER_ICON = show_icons.folders == 1
local SHOW_GIT_ICON = show_icons.git == 1

local colors = {
    red = get('terminal_color_1', 'Red'),
    green = get('terminal_color_2', 'Green'),
    yellow = get('terminal_color_3', 'Yellow'),
    blue = get('terminal_color_4', 'Blue'),
    purple = get('terminal_color_5', 'Purple'),
    cyan = get('terminal_color_6', 'Cyan'),
    orange = get('terminal_color_11', 'Orange'),
    dark_red = get('terminal_color_9', 'DarkRed'),
}

local keybindings = get('lua_tree_bindings', {});

local bindings = {
    edit = keybindings.edit or '<CR>',
    edit_vsplit = keybindings.edit_vsplit or '<C-v>',
    edit_split = keybindings.edit_split or '<C-x>',
    edit_tab = keybindings.edit_tab or '<C-t>',
    cd = keybindings.cd or '.',
    create = keybindings.create or 'a',
    remove = keybindings.remove or 'd',
    rename = keybindings.remove or 'r',
}

return {
    SHOW_FOLDER_ICON = SHOW_FOLDER_ICON,
    SHOW_FILE_ICON = SHOW_FILE_ICON,
    SHOW_GIT_ICON = SHOW_GIT_ICON,
    colors = colors,
    bindings = bindings
}