local libmodal = require 'libmodal'
local daputils = require 'spike.dap.utils'

local M = {}
M.layer = nil


local config = {
  mappings = {
    n =
    {
      t = { rhs = '<cmd> DapToggleBreakpoint<CR>', desc= '[dap] toggle breakpoint' },
      T = {
        rhs = function()
              require('dap').set_breakpoint(vim.fn.input('Breakpoint condition: '))
        end,
        desc = '[dap] conditional breakpoint',
      },
      X = {
        rhs = function()
            require('dap').clear_breakpoints()
        end,
        desc = '[dap] clear all breakpoints'
      },
      c = {
        rhs = function()
          require('dap').continue()
        end,
        desc = '[dap] continue'
      },
      n = {
        rhs = function()
          require('dap').step_over()
        end,
        desc = '[dap] step over'
      },
      s = {
        rhs = function()
          require('dap').step_into()
        end,
        desc = '[dap] step into'
      },
      o = {
        rhs = function()
          require('dap').step_out()
        end,
        desc = '[dap] step out'
      },
      r = {
        rhs = function()
          require('dap').run_last()
        end,
        desc = '[dap] restart'
      },
      S = {
        rhs = function()
            daputils.disconnect_dap()
        end,
        desc = '[dap] stop'
      },
      C = {
        rhs = function()
          require('dap').run_to_cursor()
        end,
        desc = '[dap] run to curosr'
      },
      W = {
        rhs = function()
            require('dapui').float_element('watches')
        end,
        desc = '[dapui] float watches'
      },
      P = {
        rhs = function()
            require('dapui').float_element('scopes')
        end,
        desc = '[dapui] float scopes'
      },B = {
        rhs = function()
            require('dapui').float_element('breakpoints')
        end,
        desc = '[dapui] float breakpoints'
      },
      O = {
        rhs = function()
            require('dapui').float_element('scopes')
        end,
        desc = '[dapui] float scopes'
      },
      ['Q'] = {
        rhs = function()
          M.layer:exit()
        end,
        desc = '[dap] exit dap mode'
      },
-- WIP: use which-key for key mappings help
      -- ["?"] = {
      --     rhs = function()
      --         local wk = require("which-key")
      --         wk.show("?", "n")
      --     end
      -- }
    }
  }
}

M.config = config

-- WIP: use which-key for key mappings help
-- local function wk_reg_keys()
--     local wk = require("which-key")
--     local wk_dapmode = {
--         name = "dap", -- section name
--     }
--     local wk_opts = {
--         mode = "n",
--         prefix = "?",
--         -- noremap = true,
--     }
--     for key, data in pairs(config.mappings.n) do
--         wk_dapmode[key] = { data.desc }
--     end
--     wk.register(wk_dapmode, wk_opts)
-- end


function M.start()
  if M.layer == nil then
    M.layer = libmodal.layer.new(config.mappings)
  end
  -- wk_reg_keys()
  M.layer:enter()
end

function M.stop()
  if M.layer ~= nil then M.layer:exit() end
end

function M.setup (opts)
  config = vim.tbl_deep_extend('force', config, opts or {})
end

function M.is_active()
  if M.layer == nil then return false end
  return M.layer:is_active()
end


-- layer:map('n', '<Esc>', function() layer:exit() end, {})
-- --
-- layer:enter()
--
M.disconnect_dap = disconnect_dap

return M