--=============================================================================
-- loader.lua
-- Copyright 2025 Eric Wong
-- Author: Eric Wong < wsdjeg@outlook.com >
-- License: GPLv3
--=============================================================================

local M = {}

local config = require('plug.config')

--- @class PluginSpec
--- @field rtp string
--- @field events table<string>
--- @field cmds table<string>
--- @field config function
--- @field name string
--- @field branch string
--- @field tag string
--- @field url string
--- @field path string
--- @field build string|table<string>
--- @field is_local boolean true for local plugin
--- @field when boolean|string|function
--- @field frozen boolean

local function is_local_plugin(plugSpec)
  if plugSpec.is_local or vim.fn.isdirectory(plugSpec[1]) == 1 then
    plugSpec.is_local = true
    return true
  end
end

local function unique_name(plugSpec)
  local s = vim.split(plugSpec[1], '/')
  return s[#s]
end

function M.parser(plugSpec)
  if type(plugSpec.enabled) == "nil" then
    plugSpec.enabled = true
  elseif type(plugSpec.enabled) == "function" then
    plugSpec.enabled = plugSpec.enabled()
  elseif type(plugSpec.enabled) ~= "boolean" or plugSpec.enabled == false then
    plugSpec.enabled = false
    return plugSpec
  end
  plugSpec.name = unique_name(plugSpec)
  if is_local_plugin(plugSpec) then
    plugSpec.rtp = plugSpec[1]
    plugSpec.path = plugSpec[1]
    plugSpec.url = nil
  elseif not plugSpec.type or plugSpec.type == 'none' then
    plugSpec.rtp = config.bundle_dir .. '/' .. plugSpec[1]
    plugSpec.path = config.bundle_dir .. '/' .. plugSpec[1]
    plugSpec.url = config.base_url .. '/' .. plugSpec[1]
  elseif plugSpec.type == 'color' then
    plugSpec.rtp = config.bundle_dir .. '/' .. plugSpec[1]
    plugSpec.path = config.bundle_dir .. '/' .. plugSpec[1] .. '/color'
    plugSpec.repo = config.base_url .. '/' .. plugSpec[1]
  elseif plugSpec.type == 'plugin' then
    plugSpec.rtp = config.bundle_dir .. '/' .. plugSpec[1]
    plugSpec.path = config.bundle_dir .. '/' .. plugSpec[1] .. '/plugin'
    plugSpec.url = config.base_url .. '/' .. plugSpec[1]
  end

  return plugSpec
end

-- {'loadconf': 1,
-- 'type': 'none',
-- 'overwrite': 1,
-- 'lazy': 0,
-- 'name': 'defx-git',
-- 'rtp': 'C:/Users/wsdjeg/.SpaceVim/bundle/defx-git',
-- 'normalized_name': 'defx-git',
-- 'local': 1,
-- 'sourced': 1,
-- 'orig_opts': {'repo': 'C:/Users/wsdjeg/.SpaceVim/bundle/defx-git',
-- 'loadconf': 1,
-- 'type': 'none',
-- 'merged': 0,
-- 'hook_source': 'call SpaceVim#util#loadConfig(''plugins/defx-git.vim'')',
-- 'overwrite': 1},
-- 'repo': 'C:/Users/wsdjeg/.SpaceVim/bundle/defx-git',
-- 'hook_source': 'call SpaceVim#util#loadConfig(''plugins/defx-git.vim'')',
-- 'called': {'''call SpaceVim#util#loadConfig(''''plugins/defx-git.vim'''')''': v:true},
-- 'merged': 0,
-- 'path': 'C:/Users/wsdjeg/.SpaceVim/bundle/defx-git'}
function M.load(plugSpec)
  if vim.fn.isdirectory(plugSpec.rtp) == 1 then
    vim.opt.runtimepath:append(plugSpec.rtp)
    if vim.fn.has('vim_starting') ~= 1 then
			local plugin_directory_files = vim.fn.globpath(plugSpec.rtp, "plugin/*.{lua,vim}", 0, 1)
      for _, f in ipairs(plugin_directory_files) do
        vim.cmd.source(f)
      end
    end
  end
end

return M