1 files changed, 151 insertions, 0 deletions
diff --git a/lua/pi/php/lsp.lua b/lua/pi/php/lsp.lua
new file mode 100644
index 0000000..37e0bc0
--- /dev/null
+++ b/lua/pi/php/lsp.lua
@@ -0,0 +1,151 @@
+local Path = require "plenary.path"
+
+local lsp = {}
+
+local open_filename = function(filename)
+  if vim.api.nvim_buf_get_name(0) ~= filename then
+    filename = Path:new(vim.fn.fnameescape(filename)):normalize(vim.loop.cwd())
+    pcall(vim.cmd, string.format("%s %s", "edit", filename))
+  end
+end
+
+---@param server_name string
+---@return table|nil, boolean
+local get_client = function(server_name)
+  local clients = vim.lsp.get_active_clients { name = server_name }
+  local client = clients[1] or nil
+  local new_instance = false
+
+  if not client then
+    local server = require("lspconfig")[server_name]
+    local config = server.make_config(vim.fn.getcwd())
+    local client_id = vim.lsp.start(config)
+    client = vim.lsp.get_client_by_id(client_id)
+    new_instance = true
+  end
+
+  return client, new_instance
+end
+
+local function go_to(client, is_new_instance, full_class, method)
+  local class_parts = vim.split(full_class, "\\")
+  local class = class_parts[#class_parts]
+
+  local resp = client.request_sync("workspace/symbol", { query = class }, nil)
+
+  local locations = vim.lsp.util.symbols_to_items(resp.result or {}, nil) or {}
+  if vim.tbl_isempty(locations) then
+    vim.api.nvim_err_writeln("Empty response looking for class: " .. full_class)
+    if is_new_instance then
+      vim.lsp.stop_client(client.id)
+    end
+    return
+  end
+
+  local class_location = nil
+  for idx, location in pairs(locations) do
+    if location.text == string.format("[Class] %s", full_class) then
+      class_location = locations[idx]
+      break
+    end
+  end
+
+  if class_location == nil then
+    vim.api.nvim_err_writeln("Could not find class for : " .. full_class)
+    if is_new_instance then
+      vim.lsp.stop_client(client.id)
+    end
+    return
+  end
+
+  open_filename(class_location.filename)
+
+  local params = vim.lsp.util.make_position_params(0)
+  if is_new_instance then
+    vim.lsp.buf_attach_client(0, client.id)
+  end
+
+  vim.lsp.buf_request(0, "textDocument/documentSymbol", params, function(method_err, method_server_result, _, _)
+    if method_err then
+      vim.api.nvim_err_writeln("Error when finding workspace symbols: " .. method_err.message)
+      if is_new_instance then
+        vim.lsp.stop_client(client.id)
+      end
+      return
+    end
+
+    local method_locations = vim.lsp.util.symbols_to_items(method_server_result or {}, 0) or {}
+    if vim.tbl_isempty(method_locations) then
+      vim.api.nvim_err_writeln(string.format("empty response looking for method: %s", method or "__invoke"))
+      if is_new_instance then
+        vim.lsp.stop_client(client.id)
+      end
+      return
+    end
+
+    local method_location = nil
+    for _, value in ipairs(method_locations) do
+      if value.text == string.format("[Method] %s", method or "__invoke") then
+        method_location = value
+        break
+      end
+    end
+
+    if method_location == nil then
+      if is_new_instance then
+        vim.lsp.stop_client(client.id)
+      end
+      return
+    end
+
+    local row = method_location.lnum
+    local col = method_location.col - 1
+
+    if row and col then
+      local ok, err_msg = pcall(vim.api.nvim_win_set_cursor, 0, { row, col })
+      if not ok then
+        vim.api.nvim_err_writeln("Erro setting row and col " .. err_msg)
+      end
+      vim.cmd "normal zt"
+    end
+    if is_new_instance then
+      vim.lsp.stop_client(client.id)
+    end
+  end)
+end
+
+---Return a buffer id for the given client
+---@param server_name string
+---@return integer|nil
+lsp.get_lsp_buffer = function(server_name)
+  local clients = vim.lsp.get_active_clients { name = server_name }
+  if #clients == 0 then
+    return nil
+  end
+
+  local buffers = vim.lsp.get_buffers_by_client_id(clients[1].id)
+
+  if #buffers == 0 then
+    return nil
+  end
+
+  return buffers[1]
+end
+
+--- @param fqn string: fully name to search Class::method
+lsp.find = function(fqn, server_name)
+  local search = vim.split(fqn, "::")
+  local fqn_class = search[1]
+  local method = search[2]
+
+  local client, is_new_instance = get_client(server_name)
+
+  if not client then
+    vim.api.nvim_err_writeln "Could not get lsp client"
+    return
+  end
+
+  go_to(client, is_new_instance, fqn_class, method)
+end
+
+return lsp