local present, cmp = pcall(require, "cmp")

if not present then
    return
end

-- require("ui").load_highlight "cmp"

vim.o.completeopt = "menu,menuone,noselect"

local function border(hl_name)
    return {
        { "╭", hl_name },
        { "─", hl_name },
        { "╮", hl_name },
        { "│", hl_name },
        { "╯", hl_name },
        { "─", hl_name },
        { "╰", hl_name },
        { "│", hl_name },
    }
end

local options = {
    window = {
        completion = {
            border = border "CmpBorder",
            winhighlight = "Normal:CmpPmenu,CursorLine:PmenuSel,Search:None",
            scrollbar = false,
        },
        documentation = {
            border = border "CmpDocBorder",
        },
    },
    snippet = {
        expand = function(args)
            require("luasnip").lsp_expand(args.body)
        end,
    },

    formatting = {
        format = function(_, vim_item)
            local icons = {
                Namespace = "",
                Text = " ",
                Method = " ",
                Function = " ",
                Constructor = " ",
                Field = "ﰠ ",
                Variable = " ",
                Class = "ﴯ ",
                Interface = " ",
                Module = " ",
                Property = "ﰠ ",
                Unit = "塞 ",
                Value = " ",
                Enum = " ",
                Keyword = " ",
                Snippet = " ",
                Color = " ",
                File = " ",
                Reference = " ",
                Folder = " ",
                EnumMember = " ",
                Constant = " ",
                Struct = "פּ ",
                Event = " ",
                Operator = " ",
                TypeParameter = " ",
                Table = "",
                Object = " ",
                Tag = "",
                Array = "[]",
                Boolean = " ",
                Number = " ",
                Null = "ﳠ",
                String = " ",
                Calendar = "",
                Watch = " ",
                Package = "",
            }
            vim_item.kind = string.format("%s %s", icons[vim_item.kind], vim_item.kind)
            return vim_item
        end,
    },

    mapping = {
        ["<C-p>"] = cmp.mapping.select_prev_item(),
        ["<C-n>"] = cmp.mapping.select_next_item(),
        ["<C-d>"] = cmp.mapping.scroll_docs(-4),
        ["<C-f>"] = cmp.mapping.scroll_docs(4),
        ["<C-Space>"] = cmp.mapping.complete(),
        ["<C-e>"] = cmp.mapping.close(),
        ["<CR>"] = cmp.mapping.confirm {
            behavior = cmp.ConfirmBehavior.Replace,
            select = false,
        },
        ["<Tab>"] = cmp.mapping(function(fallback)
            if cmp.visible() then
                cmp.select_next_item()
            elseif require("luasnip").expand_or_jumpable() then
                vim.fn.feedkeys(vim.api.nvim_replace_termcodes("<Plug>luasnip-expand-or-jump", true, true, true), "")
            else
                fallback()
            end
        end, {
            "i",
            "s",
        }),
        ["<S-Tab>"] = cmp.mapping(function(fallback)
            if cmp.visible() then
                cmp.select_prev_item()
            elseif require("luasnip").jumpable(-1) then
                vim.fn.feedkeys(vim.api.nvim_replace_termcodes("<Plug>luasnip-jump-prev", true, true, true), "")
            else
                fallback()
            end
        end, {
            "i",
            "s",
        }),
    },
    sources = {
        { name = "luasnip" },
        { name = "nvim_lsp" },
        { name = "buffer" },
        { name = "nvim_lua" },
        { name = "path" },
        { name = "crates" },
    },
}

cmp.setup(options)