local title
if vim.fn.has('nvim-0.9') == 1 then
    title = {
        { '',       'TransTitleRound' },
        { ' Trans', 'TransTitle' },
        { '',       'TransTitleRound' },
    }
end

---@class Trans
---@field conf TransConf


---@class TransConf
return {
    ---@type string the directory for database file and password file
    dir      = os.getenv('HOME') .. '/.vim/dict',
    query    = 'fallback',
    -- backend_order = {},
    ---@type 'default' | 'dracula' | 'tokyonight' global Trans theme [see lua/Trans/style/theme.lua]
    theme    = 'default', -- default | tokyonight | dracula
    strategy = {
        ---@type { frontend:string, backend:string | string[] } fallback strategy for mode
        default = {
            frontend = 'hover',
            backend = '*',
        },
    },
    ---@type table frontend options
    frontend = {
        ---@class TransFrontendOpts
        ---@field keymaps table<string, string>
        default = {
            ---@type boolean Whether to auto play the audio
            auto_play = true,
            border = 'rounded',
            title = title, -- need nvim-0.9
            ---@type {open: string | boolean, close: string | boolean, interval: integer} Hover Window Animation
            animation = {
                open = 'slid', -- 'fold', 'slid'
                close = 'slid',
                interval = 12,
            },
            timeout = 2000,
        },
        ---@class TransHoverOpts : TransFrontendOpts
        hover = {
            ---@type integer Max Width of Hover Window
            width             = 37,
            ---@type integer Max Height of Hover Window
            height            = 27,
            ---@type string -- see: /lua/Trans/style/spinner
            spinner           = 'dots',
            ---@type string -- TODO :support replace with {{special word}}
            fallback_message  = '{{notfound}} 翻译超时或没有找到相关的翻译',
            auto_resize       = true,
            -- strict = false, -- TODO :No Width limit when str is a sentence
            padding           = 10, -- padding for hover window width
            keymaps           = {
                pageup       = '[[',
                pagedown     = ']]',
                pin          = '<leader>[',
                close        = '<leader>]',
                toggle_entry = '<leader>;',
                -- play         = '_', -- Deprecated
            },
            ---@type string[] auto close events
            auto_close_events = {
                'InsertEnter',
                'CursorMoved',
                'BufLeave',
            },
            ---@type table<string, string[]> order to display translate result
            order             = {
                default = {
                    'str',
                    'translation',
                    'definition',
                },
                offline = {
                    'title',
                    'tag',
                    'pos',
                    'exchange',
                    'translation',
                    'definition',
                },
                youdao = {
                    'title',
                    'translation',
                    'definition',
                    'web',
                }
            },
            ---@type table<string, string>
            icon              = {
                -- or use emoji
                list     = '●', -- ● | ○ | ◉ | ◯ | ◇ | ◆ | ▪ | ▫ | ⬤ | ⬛ | ⬜ | ◻ | ◼ | ◾ | ◽ | ▣ | ▤ | ▥ | ▦ | ▧ | ▨ | ▩ | ▪ | ▫ | ▬ | ▭ | ▮ | ▯ | ◌ | ◍ | ◎ | ● | ◐ | ◑ | ◒ | ◓ | ◔ | ◕ | ◖ | ◗ | ◘ | ◙ | ◚ | ◛ | ◜ | ◝ | ◞ | ◟ | ◠ | ◡ | ◢ | ◣ | ◤ | ◥ | ◦ | ◧ | ◨ | ◩ | ◪ | ◫ | ◬ | ◭ | ◮ | ◯ | ◰ | ◱ | ◲ | ◳ | ◴ | ◵ | ◶ | ◷ | ◸ | ◹ | ◺ | ◻ | ◼ | ◽ | ◾ | ◿ | ☀ | ☁ | ☂ | ☃ | ☄ | ★ | ☆ | ☇ | ☈ | ☉ | ☊ | ☋ | ☌ | ☍ | ☎ | ☏ | ☐ | ☑ | ☒ | ☓ | ☔ | ☕ | ☖ | ☗ | ☘ | ☙ | ☚ | ☛ | ☜ | ☝ | ☞ | ☟ | ☠ | ☡ | ☢ | ☣ | ☤ | ☥ | ☦ | ☧ | ☨ | ☩ | ☪ | ☫ | ☬ | ☭ | ☮ | ☯ | ☰ | ☱ | ☲ | ☳ | ☴ | ☵ | ☶ | ☷ | ☸ | ☹ | ☺ | ☻ | ☼ | ☽ | ☾ | ☿ | ♀ | ♂ | ♁ | ♂ | ♃ | ♄ | ♅ | ♆ | ♇ | ♈ | ♉ | ♊ | ♋ | ♌ | ♍ | ♎ | ♏ | ♐ | ♑ | ♒ | ♓ | ♔ | ♕ |
                star     = '', -- ⭐
                notfound = ' ', -- ❔
                yes      = '✔', -- ✔️
                no       = '', -- ❌
                cell     = '■', -- ■ | □ | ▇ | ▏ ▎ ▍ ▌ ▋ ▊ ▉ █
            },
        },
    },
}


-- TODO :
-- float = {
--     width = 0.8,
--     height = 0.8,
--     border = 'rounded',
--     keymap = {
--         quit = 'q',
--     },
--     animation = {
--         open = 'fold',
--         close = 'fold',
--         interval = 10,
--     },
--     tag = {
--         wait = '#519aba',
--         fail = '#e46876',
--         success = '#10b981',
--     },
-- },

-- local title = {
--     "████████╗██████╗  █████╗ ███╗   ██╗███████╗",
--     "╚══██╔══╝██╔══██╗██╔══██╗████╗  ██║██╔════╝",
--     "   ██║   ██████╔╝███████║██╔██╗ ██║███████╗",
--     "   ██║   ██╔══██╗██╔══██║██║╚██╗██║╚════██║",
--     "   ██║   ██║  ██║██║  ██║██║ ╚████║███████║",
--     "   ╚═╝   ╚═╝  ╚═╝╚═╝  ╚═╝╚═╝  ╚═══╝╚══════╝",
--}