model_info.lua

local app = require("laravel").app

local function model_info(bufnr)
  local namespace = vim.api.nvim_create_namespace("laravel.model")
  app("class"):get(bufnr, function(class)
    app("api"):tinker(
      string.format(
        [[
    $r = new ReflectionClass("%s");
    $isModel = $r->isSubclassOf("Illuminate\Database\Eloquent\Model");
    echo json_encode([
      'is_model' => $isModel,
      'class_start' => $r->getStartLine(),
    ]);
  ]],
        class.fqn
      ),
      function(res)
        if res:successful() and res:json().is_model then
          app("api"):async(
            "artisan",
            { "model:show", "--json", string.format("\\%s", class.fqn) },
            function(result)
              if result:successful() then
                local info = result:json()

                local virt_lines = {
                  { { "[", "comment" } },
                  { { " Database: ", "comment" },  { info.database, "@enum" } },
                  { { " Table: ", "comment" },     { info.table, "@enum" } },
                  { { " Attributes: ", "comment" } },
                }

                for _, attribute in ipairs(info.attributes) do
                  table.insert(virt_lines, {
                    { "   " .. attribute.name, "@enum" },
                    { " " .. attribute.type,   "comment" },
                    attribute.cast and { " -> " .. attribute.cast, "@enum" } or nil,
                  })
                end

                table.insert(virt_lines, { { "]", "comment" } })

                vim.api.nvim_buf_clear_namespace(bufnr, namespace, 0, -1)
                vim.api.nvim_buf_set_extmark(bufnr, namespace, res:json().class_start - 1, 0, {
                  virt_lines = virt_lines,
                  virt_lines_above = true,
                })
              else
                vim.api.nvim_buf_clear_namespace(bufnr, namespace, 0, -1)
              end
            end,
            { wrap = true }
          )
        else
          vim.api.nvim_buf_clear_namespace(bufnr, namespace, 0, -1)
        end
      end
    )
  end, function()
    vim.api.nvim_buf_clear_namespace(bufnr, namespace, 0, -1)
  end)
end

local group = vim.api.nvim_create_augroup("laravel.model_info", {})
vim.api.nvim_create_autocmd({ "BufEnter", "BufWritePost" }, {
  pattern = "*.php",
  group = group,
  callback = function(ev)
    model_info(ev.buf)
  end,
})