Dotfiles_nvim/lua/editor/dashboard.lua

return {
    'goolord/alpha-nvim',
    dependencies = {
        'nvim-tree/nvim-web-devicons',
    },
    config = function()
        -- Setup --
        local alpha = require('alpha')
        local dashboard = require('alpha.themes.startify')

        -- Header --
        local function getCharLen(s, pos)
            local byte = string.byte(s, pos)
            if not byte then
                return nil
            end
            return (byte < 0x80 and 1)
                or (byte < 0xE0 and 2)
                or (byte < 0xF0 and 3)
                or (byte < 0xF8 and 4)
                or 1
        end

        local function applyColors(logo, colors, logoColors)
            dashboard.section.header.val = logo

            for key, color in pairs(colors) do
                local name = 'Alpha' .. key
                vim.api.nvim_set_hl(0, name, color)
                colors[key] = name
            end

            dashboard.section.header.opts.hl = {}
            for i, line in ipairs(logoColors) do
                local highlights = {}
                local pos = 0

                for j = 1, #line do
                    local opos = pos
                    pos = pos + getCharLen(logo[i], opos + 1)

                    local color_name = colors[line:sub(j, j)]
                    if color_name then
                        table.insert(highlights, { color_name, opos, pos })
                    end
                end

                table.insert(dashboard.section.header.opts.hl, highlights)
            end
            return dashboard.opts
        end

        alpha.setup(applyColors({
            [[  ███       ███  ]],
            [[  ████      ████ ]],
            [[  ████     █████ ]],
            [[ █ ████    █████ ]],
            [[ ██ ████   █████ ]],
            [[ ███ ████  █████ ]],
            [[ ████ ████ ████ ]],
            [[ █████  ████████ ]],
            [[ █████   ███████ ]],
            [[ █████    ██████ ]],
            [[ █████     █████ ]],
            [[ ████      ████ ]],
            [[  ███       ███  ]],
            [[                    ]],
            [[  N  E  O  V  I  M  ]],
        }, {
            ['b'] = { fg = '#3399ff', ctermfg = 33 },
            ['a'] = { fg = '#53C670', ctermfg = 35 },
            ['g'] = { fg = '#39ac56', ctermfg = 29 },
            ['h'] = { fg = '#33994d', ctermfg = 23 },
            ['i'] = {
                fg = '#33994d',
                bg = '#39ac56',
                ctermfg = 23,
                ctermbg = 29,
            },
            ['j'] = {
                fg = '#53C670',
                bg = '#33994d',
                ctermfg = 35,
                ctermbg = 23,
            },
            ['k'] = { fg = '#30A572', ctermfg = 36 },
        }, {
            [[  kkkka       gggg  ]],
            [[  kkkkaa      ggggg ]],
            [[ b kkkaaa     ggggg ]],
            [[ bb kkaaaa    ggggg ]],
            [[ bbb kaaaaa   ggggg ]],
            [[ bbbb aaaaaa  ggggg ]],
            [[ bbbbb aaaaaa igggg ]],
            [[ bbbbb  aaaaaahiggg ]],
            [[ bbbbb   aaaaajhigg ]],
            [[ bbbbb    aaaaajhig ]],
            [[ bbbbb     aaaaajhi ]],
            [[ bbbbb      aaaaajh ]],
            [[  bbbb       aaaaa  ]],
            [[                    ]],
            [[  a  a  a  b  b  b  ]],
        }))
    end,
}