utils = require("utils")

-- TODO: Determine if I want to keep this or remove it in favor of dark-notify
_G.update_colors = function()
    local function maybe_set(scope, name, val)
        if vim[scope][name] ~= val then
            vim[scope][name] = val
            return true
        end
        return false
    end

    -- Set colorscheme based on env
    local default_color = "solarized"
    local env_color = utils.env_default("VIM_COLOR", default_color)
    env_color = utils.env_default("NVIM_COLOR", env_color)

    -- Read dark mode
    local mode = vim.env.IS_DARKMODE
    if vim.g.is_mac == 1 then
        local cmd = "defaults read -g AppleInterfaceStyle 2>/dev/null || echo Light"
        mode = vim.fn.system(cmd):gsub("\n", ""):lower()
    end

    -- Update background and theme
    local change = false
    if mode == "dark" then
        env_color = utils.env_default("VIM_COLOR_DARK", env_color)
        env_color = utils.env_default("NVIM_COLOR_DARK", env_color)
        change = maybe_set("o", "background", "dark")
        change = maybe_set("g", "colors_name", env_color) or change
    elseif mode == "light" then
        env_color = utils.env_default("VIM_COLOR_LIGHT", env_color)
        env_color = utils.env_default("NVIM_COLOR_LIGHT", env_color)
        change = maybe_set("o", "background", "light")
        change = maybe_set("g", "colors_name", env_color) or change
    end

    -- Update status line theme
    if change and vim.fn.exists(":AirlineRefresh") == 1 then
        vim.cmd(":AirlineRefresh")
    elseif change and _G["packer_plugins"] ~= nil and packer_plugins["lualine"] and packer_plugins["lualine"].loaded then
        local lualine_theme = vim.g.colors_name
        if lualine_theme == "solarized" then
            lualine_theme = lualine_theme .. "_" .. mode
        end
        require("plugins.lualine").config_lualine(lualine_theme)
    end

    return changed and "Changed color to " .. env_color .. " with mode " .. mode or "No change"
end
-- utils.autocmd("auto_colors", "FocusGained * call v:lua.update_colors()")

-- Initial set of colors
-- TODO: if update_colors() is removed, use the env color fetching and set the colorscheme here
update_colors()