local cmp = require("cmp")

cmp.setup({
    preselect = cmp.PreselectMode.Item,
    completion = { completeopt = "menu,menuone,noinsert" },
    window = { documentation = cmp.config.window.bordered() },
    mapping = cmp.mapping.preset.insert({
        ["<CR>"] = cmp.mapping.confirm({ select = false }),
        ["<C-e>"] = cmp.mapping.abort(),
        ["<C-Space>"] = cmp.mapping.complete(),
        ["<C-n>"] = cmp.mapping.select_next_item({ behavior = cmp.SelectBehavior.Select }),
        ["<C-p>"] = cmp.mapping.select_prev_item({ behavior = cmp.SelectBehavior.Select }),
        ["<C-f>"] = cmp.mapping.scroll_docs(4),
        ["<C-u>"] = cmp.mapping.scroll_docs(-4),
        ["<Tab>"] = cmp.mapping(function(fallback)
            if cmp.visible() then cmp.select_next_item() else fallback() end
        end, { "i", "s" }),
        ["<S-Tab>"] = cmp.mapping(function()
            if cmp.visible() then cmp.select_prev_item() end
        end, { "i", "s" }),
    }),
    sources = {
        { name = "nvim_lsp" },
        { name = "path" },
        { name = "buffer", keyword_length = 3 },
    },
})