1 files changed, 90 insertions, 0 deletions
diff --git a/lua/core/lsp/functions.lua b/lua/core/lsp/functions.lua
new file mode 100644
index 0000000..ab47ccc
--- /dev/null
+++ b/lua/core/lsp/functions.lua
@@ -0,0 +1,90 @@
+local misc = require('core.misc')
+local map = misc.map
+
+local M = {}
+
+function M.setup()
+  vim.diagnostic.config {
+    virtual_text = false,
+    virtual_lines = {
+      only_current_line = true,
+    },
+    signs = true,
+    update_in_insert = false,
+    underline = true,
+    severity_sort = true
+  }
+
+  vim.lsp.handlers['textDocument/hover'] = vim.lsp.with(
+    vim.lsp.handlers.hover, { border = 'solid' })
+
+  vim.lsp.handlers['textDocument/signatureHelp'] = vim.lsp.with(
+    vim.lsp.handlers.signature_help, { border = 'solid' })
+
+  for _, v in pairs({
+    { "DiagnosticSignError", "x" },
+    { "DiagnosticSignWarn", "!" },
+    { "DiagnosticSignInfo", "i" },
+    { "DiagnosticSignHint", "h" }
+  }) do
+    vim.fn.sign_define(v[1], { text = v[2], texthl = v[1] })
+  end
+end
+
+--- generate client capabilities for lsp servers
+---@return table capabilities
+function M.capabilities()
+  local capabilities = vim.lsp.protocol.make_client_capabilities()
+  capabilities.textDocument.completion.completionItem = {
+    snippetSupport = true,
+    preselectSupport = true,
+    insertReplaceSupport = true,
+    labelDetailsSupport = true,
+    deprecatedSupport = true,
+    commitCharactersSupport = true,
+    tagSupport = {
+      valueSet = { 1 }
+    },
+    resolveSupport = {
+      properties = {
+        "documentation",
+        "detail",
+        "additionalTextEdits"
+      }
+    }
+  }
+
+  return capabilities
+end
+
+--- setup basic options on lsp attach
+---@param client number client number
+---@param bufnr number buffer number
+function M.attach(client, bufnr)
+  local opts = { buffer = bufnr }
+  -- LSP actions
+  map('n', 'K', vim.lsp.buf.hover, opts)
+  map('n', 'gd', vim.lsp.buf.definition, opts)
+  map('n', 'gD', vim.lsp.buf.declaration)
+  map('n', 'gi', vim.lsp.buf.implementation, opts)
+  map('n', 'gy', vim.lsp.buf.type_definition, opts)
+  map('n', 'gr', vim.lsp.buf.references, opts)
+  map('n', '<S-Tab>', vim.lsp.buf.signature_help, opts)
+  map('n', '<leader>r', vim.lsp.buf.rename, opts)
+  map('n', '<F2>', vim.lsp.buf.rename, opts)
+  map('n', 'gA', vim.lsp.buf.code_action, {
+    buffer = bufnr,
+    desc = 'check code actions',
+  })
+  map('n', '<F4>', vim.lsp.buf.code_action, {
+    buffer = bufnr,
+    desc = 'check code actions'
+  })
+
+  -- Diagnostics
+  map('n', '[d', vim.diagnostic.goto_prev, opts)
+  map('n', ']d', vim.diagnostic.goto_next, opts)
+  -- map('n', 'qD', vim.diagnostic.setqflist, opts)
+end
+
+return M