{ lib, ... }:
with lib;
let
  oldPluginBasePath = [
    "plugins"
    "nvim-cmp"
  ];
  newPluginBasePath = [
    "plugins"
    "cmp"
  ];
  settingsPath = newPluginBasePath ++ [ "settings" ];

  renamedOptions = [
    {
      old = [
        "performance"
        "debounce"
      ];
    }
    {
      old = [
        "performance"
        "throttle"
      ];
    }
    {
      old = [
        "performance"
        "fetchingTimeout"
      ];
      new = [
        "performance"
        "fetching_timeout"
      ];
    }
    {
      old = [
        "performance"
        "asyncBudget"
      ];
      new = [
        "performance"
        "async_budget"
      ];
    }
    {
      old = [
        "performance"
        "maxViewEntries"
      ];
      new = [
        "performance"
        "max_view_entries"
      ];
    }
    { old = [ "mapping" ]; }
    {
      old = [
        "completion"
        "keywordLength"
      ];
      new = [
        "completion"
        "keyword_length"
      ];
    }
    {
      old = [
        "completion"
        "keywordPattern"
      ];
      new = [
        "completion"
        "keyword_pattern"
      ];
    }
    {
      old = [
        "completion"
        "autocomplete"
      ];
    }
    {
      old = [
        "completion"
        "completeopt"
      ];
    }
    {
      old = [
        "confirmation"
        "getCommitCharacters"
      ];
      new = [
        "confirmation"
        "get_commit_characters"
      ];
    }
    {
      old = [
        "formatting"
        "expandableIndicator"
      ];
      new = [
        "formatting"
        "expandable_indicator"
      ];
    }
    {
      old = [
        "formatting"
        "fields"
      ];
    }
    {
      old = [
        "formatting"
        "format"
      ];
    }
    {
      old = [
        "matching"
        "disallowFuzzyMatching"
      ];
      new = [
        "matching"
        "disallow_fuzzy_matching"
      ];
    }
    {
      old = [
        "matching"
        "disallowFullfuzzyMatching"
      ];
      new = [
        "matching"
        "disallow_fullfuzzy_matching"
      ];
    }
    {
      old = [
        "matching"
        "disallowPartialFuzzyMatching"
      ];
      new = [
        "matching"
        "disallow_partial_fuzzy_matching"
      ];
    }
    {
      old = [
        "matching"
        "disallowPartialMatching"
      ];
      new = [
        "matching"
        "disallow_partial_matching"
      ];
    }
    {
      old = [
        "matching"
        "disallowPrefixUnmatching"
      ];
      new = [
        "matching"
        "disallow_prefix_unmatching"
      ];
    }
    {
      old = [
        "sorting"
        "priorityWeight"
      ];
      new = [
        "sorting"
        "priority_weight"
      ];
    }
    {
      old = [
        "view"
        "entries"
      ];
    }
    {
      old = [
        "view"
        "docs"
        "autoOpen"
      ];
      new = [
        "view"
        "docs"
        "auto_open"
      ];
    }
    {
      old = [
        "window"
        "completion"
        "border"
      ];
    }
    {
      old = [
        "window"
        "completion"
        "winhighlight"
      ];
    }
    {
      old = [
        "window"
        "completion"
        "zindex"
      ];
    }
    {
      old = [
        "window"
        "completion"
        "scrolloff"
      ];
    }
    {
      old = [
        "window"
        "completion"
        "colOffset"
      ];
      new = [
        "window"
        "completion"
        "col_offset"
      ];
    }
    {
      old = [
        "window"
        "completion"
        "sidePadding"
      ];
      new = [
        "window"
        "completion"
        "side_padding"
      ];
    }
    {
      old = [
        "window"
        "completion"
        "scrollbar"
      ];
    }
    {
      old = [
        "window"
        "documentation"
        "border"
      ];
    }
    {
      old = [
        "window"
        "documentation"
        "winhighlight"
      ];
    }
    {
      old = [
        "window"
        "documentation"
        "zindex"
      ];
    }
    {
      old = [
        "window"
        "documentation"
        "maxWidth"
      ];
      new = [
        "window"
        "documentation"
        "max_width"
      ];
    }
    {
      old = [
        "window"
        "documentation"
        "maxHeight"
      ];
      new = [
        "window"
        "documentation"
        "max_height"
      ];
    }
    { old = [ "experimental" ]; }
  ];

  renameWarnings = map (
    rename:
    mkRenamedOptionModule (oldPluginBasePath ++ rename.old) (settingsPath ++ (rename.new or rename.old))
  ) renamedOptions;
in
{
  imports = renameWarnings ++ [
    (mkRenamedOptionModule (oldPluginBasePath ++ [ "enable" ]) (newPluginBasePath ++ [ "enable" ]))
    (mkRenamedOptionModule (oldPluginBasePath ++ [ "autoEnableSources" ]) (
      newPluginBasePath ++ [ "autoEnableSources" ]
    ))
    (mkRemovedOptionModule (oldPluginBasePath ++ [ "preselect" ]) ''
      Use `plugins.cmp.settings.preselect` option. But watch out, you now have to explicitly write `cmp.PreselectMode.<mode>`.
      See the option documentation for more details.
    '')
    (mkRemovedOptionModule (oldPluginBasePath ++ [ "mappingPresets" ])
      "If you want to have a complex mapping logic, express it in raw lua within the `plugins.cmp.settings.mapping` option."
    )
    (mkRemovedOptionModule
      (
        oldPluginBasePath
        ++ [
          "snippet"
          "expand"
        ]
      )
      ''
        Use `plugins.cmp.settings.snippet.expand` option. But watch out, you can no longer put only the name of the snippet engine.
        If you use `luasnip` for instance, set:
        ```
          plugins.cmp.settings.snippet.expand = "function(args) require('luasnip').lsp_expand(args.body) end";
        ```
      ''
    )
    (mkRemovedOptionModule
      (
        oldPluginBasePath
        ++ [
          "sorting"
          "comparators"
        ]
      )
      ''
        Use `plugins.cmp.settings.sorting.comparators` option. But watch out, you can no longer put only the name of the comparators.
        See the option documentation for more details.
      ''
    )
    (mkRemovedOptionModule (oldPluginBasePath ++ [ "sources" ]) ''
      Use `plugins.cmp.settings.sources` option. But watch out, you can no longer provide a list of lists of sources.
      For this type of use, directly write lua.
      See the option documentation for more details.
    '')
  ];
}