--
-- Start config for builtin Neovim language server protocol client
--
-- Source: https://github.com/RRethy/vim-illuminate
-- ..............................................
--
-- Author: Sven Vogel
-- Created: 08.11.2024
-- Edited: 08.11.2024
--
-- ==============================================

ui = require 'config.ui'

return {
    {
        'neovim/nvim-lspconfig',
        dependencies = {
            "williamboman/mason.nvim",
            {
                "williamboman/mason-lspconfig.nvim",
                config = function()
                end
            },
        },
        opts = {
            inlay_hints = {
                enabled = true,
            },
            diagnostics = {
                virtual_text = true,
                signs = true,
                update_in_insert = false,
                underline = true,
                severity_sort = false,
                float = {
                    border = ui.border,
                    source = 'always',
                },
            }
        },
        config = function(opts)
            require("mason").setup()

            local handlers = {
                -- The first entry (without a key) will be the default handler
                -- and will be called for each installed server that doesn't have
                -- a dedicated handler.
                function(server_name) -- default handler (optional)
                    require("lspconfig")[server_name].setup({
                        on_attach = function(client, bufnr)
                        end
                    })
                end,
            }

            require("mason-lspconfig").setup({ handlers = handlers })

            -- Setup diagnostic user interface
            --
            -- Source: https://vonheikemen.github.io/devlog/tools/setup-nvim-lspconfig-plus-nvim-cmp
            -- ..............................................

            vim.lsp.handlers['textDocument/hover'] = vim.lsp.with(
                vim.lsp.handlers.hover,
                {
                    border = ui.border
                })

            vim.lsp.handlers['textDocument/signatureHelp'] = vim.lsp.with(
                vim.lsp.handlers.signature_help,
                {
                    border = ui.border
                })
            
            vim.diagnostic.config(vim.deepcopy(opts.diagnostics))
        end
    }
}