return {
  condition = require("heirline.conditions").has_diagnostics,

  static = {
    error_icon = vim.fn.sign_getdefined("DiagnosticSignError")[1].text,
    warn_icon = vim.fn.sign_getdefined("DiagnosticSignWarn")[1].text,
    info_icon = vim.fn.sign_getdefined("DiagnosticSignInfo")[1].text,
    hint_icon = vim.fn.sign_getdefined("DiagnosticSignHint")[1].text,
  },

  init = function(self)
    self.errors = #vim.diagnostic.get(0, { severity = vim.diagnostic.severity.ERROR })
    self.warnings = #vim.diagnostic.get(0, { severity = vim.diagnostic.severity.WARN })
    self.hints = #vim.diagnostic.get(0, { severity = vim.diagnostic.severity.HINT })
    self.info = #vim.diagnostic.get(0, { severity = vim.diagnostic.severity.INFO })
  end,

  update = { "DiagnosticChanged", "BufEnter" },

  {
    provider = "![",
  },
  {
    condition = function(self) return self.errors > 0 end,
    provider = function(self) return self.error_icon .. self.errors end,
    hl = { fg = "diag_error" },
  },
  {
    condition = function(self) return self.errors > 0 and (self.warnings > 0 or self.info > 0 or self.hints > 0) end,
    provider = " ",
  },
  {
    condition = function(self) return self.warnings > 0 end,
    provider = function(self) return self.warn_icon .. self.warnings end,
    hl = { fg = "diag_warn" },
  },
  {
    condition = function(self) return self.warnings > 0 and (self.info > 0 or self.hints > 0) end,
    provider = " ",
  },
  {
    condition = function(self) return self.info > 0 end,
    provider = function(self) return self.info_icon .. self.info end,
    hl = { fg = "diag_info" },
  },
  {
    condition = function(self) return self.info > 0 and self.hints > 0 end,
    provider = " ",
  },
  {
    condition = function(self) return self.hints > 0 end,
    provider = function(self) return self.hint_icon .. self.hints end,
    hl = { fg = "diag_hint" },
  },
  {
    provider = "]",
  },
}