nvim-config/lua/plugins/lsp.lua

return {
  {
    "williamboman/mason.nvim",
    lazy = false,
    config = function()
      require("mason").setup()
    end,
  },
  {
    "williamboman/mason-lspconfig.nvim",
    lazy = false,
    opts = {
      automatic_enable = false,
      auto_install = true,
    },
  },
  {
    "linux-cultist/venv-selector.nvim",
    dependencies = {
      "neovim/nvim-lspconfig",
      "mfussenegger/nvim-dap",
      "mfussenegger/nvim-dap-python",
      { "nvim-telescope/telescope.nvim", branch = "0.1.x", dependencies = { "nvim-lua/plenary.nvim" } },
    },
    ft = "python",
    keys = {
      { "<leader>v", "<cmd>VenvSelect<cr>" },
    },
    opts = {
      search = {},
      options = {},
    },
  },
  {
    "b0o/SchemaStore.nvim",
  },
  {
    "neovim/nvim-lspconfig",
    dependencies = { "hoffs/omnisharp-extended-lsp.nvim" },
    lazy = false,
    config = function()
      local capabilities = require("cmp_nvim_lsp").default_capabilities()

      vim.lsp.handlers["window/showMessage"] = function(_, result, ctx)
        local client = vim.lsp.get_client_by_id(ctx.client_id)

        local lvl = ({
          ERROR = vim.log.levels.ERROR,
          WARNING = vim.log.levels.WARN,
          INFO = vim.log.levels.INFO,
          LOG = vim.log.levels.DEBUG,
        })[result.type]

        vim.notify(result.message, lvl, {
          title = string.format("LSP[%s]", client and client.name or "Unknown"),
        })
      end

      vim.lsp.handlers["$/progress"] = function(_, result, ctx)
        local client = vim.lsp.get_client_by_id(ctx.client_id)

        if result.value.kind == "begin" then
          vim.notify(
            string.format("LSP[%s] %s", client and client.name or "Unknown", result.value.title),
            vim.log.levels.INFO
          )
        end
      end

      local base_on_attach = vim.lsp.config.eslint.on_attach

      vim.lsp.config("eslint", {
        on_attach = function(client, bufnr)
          if not base_on_attach then
            return
          end

          base_on_attach(client, bufnr)
          vim.api.nvim_create_autocmd("BufWritePre", {
            buffer = bufnr,
            command = "LspEslintFixAll",
          })
        end,
      })

      vim.lsp.enable("eslint")

      vim.lsp.config("omnisharp", {
        handlers = {
          ["textDocument/definition"] = require("omnisharp_extended").handler,
        },
        capabilities = capabilities,
      })

      vim.lsp.enable("omnisharp")

      vim.lsp.config("fsautocomplete", {
        capabilities = capabilities,
      })

      vim.lsp.enable("fsautocomplete")

      vim.lsp.config("lua_ls", {
        capabilities = capabilities,
      })

      vim.lsp.enable("lua_ls")

      local vue_language_server_path = vim.fn.stdpath("data")
          .. "/mason/packages/vue-language-server/node_modules/@vue/language-server"

      local tsserver_filetypes = { "typescript", "javascript", "javascriptreact", "typescriptreact", "vue" }

      local vue_plugin = {
        name = "@vue/typescript-plugin",
        location = vue_language_server_path,
        languages = { "vue" },
        configNamespace = "typescript",
      }

      local ts_ls_config = {
        init_options = {
          plugins = {
            vue_plugin,
          },
        },
        filetypes = tsserver_filetypes,
      }

      local vue_ls_config = {}

      vim.lsp.config("vue_ls", vue_ls_config)
      vim.lsp.config("ts_ls", ts_ls_config)

      vim.lsp.enable("vue_ls")
      vim.lsp.enable("ts_ls")

      vim.lsp.config("jsonls", {
        capabilities = capabilities,
        settings = {
          json = {
            schemas = require("schemastore").json.schemas(),
            validate = { enable = true },
            format = { enable = true },
          },
        },
      })

      vim.lsp.enable("jsonls")

      vim.lsp.config("html", {
        filetypes = { "html", "ejs", "gohtml" },
        capabilities = capabilities,
      })

      vim.lsp.enable("html")

      vim.lsp.config("emmet_language_server", {
        filetypes = { "html", "css", "javascriptreact", "typescriptreact", "vue", "gohtml" },
        capabilities = capabilities,
      })

      vim.lsp.enable("emmet_language_server")

      vim.lsp.config("cssls", {
        filetypes = { "css", "scss", "less" },
        capabilities = capabilities,
      })

      vim.lsp.enable("cssls")

      vim.lsp.config("tailwindcss", {
        capabilities = capabilities,
      })

      vim.lsp.enable("tailwindcss")

      vim.lsp.config("pyright", {
        capabilities = capabilities,
      })

      vim.lsp.enable("pyright")

      vim.lsp.config("lemminx", {
        capabilities = capabilities,
      })

      vim.lsp.enable("lemminx")

      vim.lsp.config("gopls", {
        capabilities = capabilities,
        filetypes = { "go", "gomod", "gowork", "gotmpl", "gohtml" },
        settings = {
          gopls = {
            buildFlags = { "-tags=integration" }
          }
        }
      })

      vim.lsp.enable("gopls")

      vim.lsp.config("rust_analyzer", {
        settings = {
          ["rust-analyzer"] = {
            files = {
              watcher = "server",
            },
            check = {
              command = "clippy",
            },
            diagnostics = {
              enable = false,
            },
          },
        },
        capabilities = capabilities,
      })

      vim.lsp.enable("rust_analyzer")

      vim.lsp.config("gh_actions_ls", {
        capabilities = capabilities,
        filetypes = { "yaml" },
        settings = {
          yaml = {
            schemas = {
              ["https://json.schemastore.org/github-workflow.json"] = "/*/.github/workflows/*",
            },
          },
        },
      })

      vim.lsp.enable("gh_actions_ls")

      vim.lsp.config("sqlls", {
        capabilities = capabilities,
        filetypes = { "sql" },
      })

      vim.lsp.enable("sqlls")

      vim.api.nvim_create_autocmd("LspAttach", {
        group = vim.api.nvim_create_augroup("UserLspConfig", {}),
        callback = function(ev)
          local client = vim.lsp.get_client_by_id(ev.data.client_id)

          if not client then
            vim.notify("LSP client not found", vim.log.levels.ERROR)
            return
          end

          if not client.server_capabilities then
            vim.notify("LSP server not ready yet", vim.log.levels.WARN)
            return
          end

          client.on_error = function(err)
            vim.notify(string.format("LSP server error: %s", err.message), vim.log.levels.ERROR)
          end

          client.on_status = function(status)
            if status == "stopped" then
              vim.notify("LSP server stopped", vim.log.levels.WARN)
            elseif status == "running" then
              vim.notify("LSP server running", vim.log.levels.INFO)
            end
          end

          local omnisharp = require("omnisharp_extended")

          if client.name == "omnisharp" then
            vim.keymap.set(
              "n",
              "gd",
              omnisharp.telescope_lsp_definition,
              { desc = "Go to definition", buffer = ev.buf }
            )

            vim.keymap.set(
              "n",
              "gi",
              omnisharp.telescope_lsp_implementation,
              { desc = "Go to implementation", buffer = ev.buf }
            )

            vim.keymap.set(
              "n",
              "gr",
              omnisharp.telescope_lsp_references,
              { desc = "Go to references", buffer = ev.buf }
            )

            vim.keymap.set(
              "n",
              "<leader>D",
              omnisharp.telescope_lsp_type_definition,
              { desc = "Go to type definition", buffer = ev.buf }
            )
          else
            vim.keymap.set(
              "n",
              "gd",
              vim.lsp.buf.definition,
              { desc = "Go to definition", buffer = ev.buf }
            )

            vim.keymap.set(
              "n",
              "gD",
              vim.lsp.buf.declaration,
              { desc = "Go to declaration", buffer = ev.buf }
            )

            vim.keymap.set(
              "n",
              "gi",
              vim.lsp.buf.implementation,
              { desc = "Go to implementation", buffer = ev.buf }
            )

            vim.keymap.set(
              "n",
              "gr",
              vim.lsp.buf.references,
              { desc = "Go to references", buffer = ev.buf }
            )
          end

          vim.api.nvim_create_autocmd({ "FileType" }, {
            callback = function()
              local parsers = require("nvim-treesitter.parsers")

              if parsers then
                vim.opt.foldmethod = "expr"
                vim.opt.foldexpr = "nvim_treesitter#foldexpr()"
              else
                vim.opt.foldmethod = "syntax"
              end
            end,
          })

          vim.api.nvim_create_autocmd("BufWritePre", {
            pattern = "*.go",
            callback = function()
              local params = vim.lsp.util.make_range_params()
              params.context = { only = { "source.organizeImports" } }
              local result = vim.lsp.buf_request_sync(0, "textDocument/codeAction", params)
              for cid, res in pairs(result or {}) do
                for _, r in pairs(res.result or {}) do
                  if r.edit then
                    local enc = (vim.lsp.get_client_by_id(cid) or {}).offset_encoding or "utf-16"
                    vim.lsp.util.apply_workspace_edit(r.edit, enc)
                  end
                end
              end
              vim.lsp.buf.format({ async = false })
            end,
          })

          vim.keymap.set(
            "n",
            "<leader>ca",
            vim.lsp.buf.code_action,
            { desc = "Code actions", buffer = ev.buf }
          )

          vim.keymap.set("n", "<leader>rn", vim.lsp.buf.rename, { desc = "Rename", buffer = ev.buf })

          vim.keymap.set(
            "n",
            "<leader>e",
            vim.diagnostic.open_float,
            { desc = "Display error for current line", buffer = ev.buf }
          )

          vim.keymap.set(
            "n",
            "<leader>ea",
            ":Telescope diagnostics bufnr=0<CR>",
            { desc = "Display errors for current buffer", buffer = ev.buf }
          )

          vim.keymap.set("n", "K", vim.lsp.buf.hover, { desc = "Display symbol info", buffer = ev.buf })
        end,
      })
    end,
  },
}