rspack_binding_api 0.101.2

use std::{path::PathBuf, sync::Arc};

use napi::bindgen_prelude::{Either, Either3};
use napi_derive::napi;
use regex::Regex;
use rspack_resolver::AliasValue;
use rustc_hash::FxHashMap;

/// Module Resolution Options
///
/// Options are directly ported from [enhanced-resolve](https://github.com/webpack/enhanced-resolve#resolver-options).
///
/// See [rspack resolve](https://rspack.rs/config/resolve) for information and examples
#[derive(Debug, Clone)]
#[napi(object)]
pub struct NapiResolveOptions {
  /// Path to TypeScript configuration file.
  ///
  /// Default `None`
  pub tsconfig: Option<TsconfigOptions>,

  /// Alias for [ResolveOptions::alias] and [ResolveOptions::fallback].
  ///
  /// For the second value of the tuple, `None -> AliasValue::Ignore`, Some(String) ->
  /// AliasValue::Path(String)`
  /// Create aliases to import or require certain modules more easily.
  /// A trailing $ can also be added to the given object's keys to signify an exact match.
  #[napi(ts_type = "Record<string, string | false | string[]>")]
  pub alias: Option<FxHashMap<String, AliasRawValueType>>,

  /// A list of alias fields in description files.
  /// Specify a field, such as `browser`, to be parsed according to [this specification](https://github.com/defunctzombie/package-browser-field-spec).
  /// Can be a path to json object such as `["path", "to", "exports"]`.
  ///
  /// Default `[]`
  #[napi(ts_type = "(string | string[])[]")]
  pub alias_fields: Option<Vec<StrOrStrListType>>,

  /// Condition names for exports field which defines entry points of a package.
  /// The key order in the exports field is significant. During condition matching, earlier entries have higher priority and take precedence over later entries.
  ///
  /// Default `[]`
  pub condition_names: Option<Vec<String>>,

  /// The JSON files to use for descriptions. (There was once a `bower.json`.)
  ///
  /// Default `["package.json"]`
  pub description_files: Option<Vec<String>>,

  /// If true, it will not allow extension-less files.
  /// So by default `require('./foo')` works if `./foo` has a `.js` extension,
  /// but with this enabled only `require('./foo.js')` will work.
  ///
  /// Default to `true` when [ResolveOptions::extensions] contains an empty string.
  /// Use `Some(false)` to disable the behavior.
  /// See <https://github.com/webpack/enhanced-resolve/pull/285>
  ///
  /// Default None, which is the same as `Some(false)` when the above empty rule is not applied.
  pub enforce_extension: Option<EnforceExtension>,

  /// A list of exports fields in description files.
  /// Can be a path to json object such as `["path", "to", "exports"]`.
  ///
  /// Default `[["exports"]]`.
  #[napi(ts_type = "(string | string[])[]")]
  pub exports_fields: Option<Vec<StrOrStrListType>>,

  /// Fields from `package.json` which are used to provide the internal requests of a package
  /// (requests starting with # are considered internal).
  ///
  /// Can be a path to a JSON object such as `["path", "to", "imports"]`.
  ///
  /// Default `[["imports"]]`.
  #[napi(ts_type = "(string | string[])[]")]
  pub imports_fields: Option<Vec<StrOrStrListType>>,

  /// An object which maps extension to extension aliases.
  ///
  /// Default `{}`
  #[napi(ts_type = "Record<string, Array<string>>")]
  pub extension_alias: Option<FxHashMap<String, Vec<String>>>,

  /// Attempt to resolve these extensions in order.
  /// If multiple files share the same name but have different extensions,
  /// will resolve the one with the extension listed first in the array and skip the rest.
  ///
  /// Default `[".js", ".json", ".node"]`
  pub extensions: Option<Vec<String>>,

  /// Redirect module requests when normal resolving fails.
  ///
  /// Default `[]`
  #[napi(ts_type = "Record<string, Array<string | undefined | null>>")]
  pub fallback: Option<FxHashMap<String, Vec<Option<String>>>>,

  /// Request passed to resolve is already fully specified and extensions or main files are not resolved for it (they are still resolved for internal requests).
  ///
  /// See also rspack configuration [resolve.fullySpecified](https://rspack.rs/config/resolve#resolvefullyspecified)
  ///
  /// Default `false`
  pub fully_specified: Option<bool>,

  /// A list of main fields in description files
  ///
  /// Default `["main"]`.
  #[napi(ts_type = "string | string[]")]
  pub main_fields: Option<StrOrStrListType>,

  /// The filename to be used while resolving directories.
  ///
  /// Default `["index"]`
  pub main_files: Option<Vec<String>>,

  /// A list of directories to resolve modules from, can be absolute path or folder name.
  ///
  /// Default `["node_modules"]`
  #[napi(ts_type = "string | string[]")]
  pub modules: Option<StrOrStrListType>,

  /// Resolve to a context instead of a file.
  ///
  /// Default `false`
  pub resolve_to_context: Option<bool>,

  /// Prefer to resolve module requests as relative requests instead of using modules from node_modules directories.
  ///
  /// Default `false`
  pub prefer_relative: Option<bool>,

  /// Prefer to resolve server-relative urls as absolute paths before falling back to resolve in ResolveOptions::roots.
  ///
  /// Default `false`
  pub prefer_absolute: Option<bool>,

  /// A list of resolve restrictions to restrict the paths that a request can be resolved on.
  ///
  /// Default `[]`
  pub restrictions: Option<Vec<Restriction>>,

  /// A list of directories where requests of server-relative URLs (starting with '/') are resolved.
  /// On non-Windows systems these requests are resolved as an absolute path first.
  ///
  /// Default `[]`
  pub roots: Option<Vec<String>>,

  /// Whether to resolve symlinks to their symlinked location.
  /// When enabled, symlinked resources are resolved to their real path, not their symlinked location.
  /// Note that this may cause module resolution to fail when using tools that symlink packages (like npm link).
  ///
  /// Default `true`
  pub symlinks: Option<bool>,

  /// Whether to parse [module.builtinModules](https://nodejs.org/api/module.html#modulebuiltinmodules) or not.
  /// For example, "zlib" will throw [crate::ResolveError::Builtin] when set to true.
  ///
  /// Default `false`
  pub builtin_modules: Option<bool>,

  /// Whether to enable yarn Plug'n'Play
  ///
  /// Default `false`
  pub enable_pnp: Option<bool>,
}

#[napi]
#[derive(Debug, PartialEq, Eq, Clone, Copy)]
pub enum EnforceExtension {
  Auto,
  Enabled,
  Disabled,
}

impl EnforceExtension {
  pub fn is_auto(&self) -> bool {
    *self == Self::Auto
  }

  pub fn is_enabled(&self) -> bool {
    *self == Self::Enabled
  }

  pub fn is_disabled(&self) -> bool {
    *self == Self::Disabled
  }
}

/// Alias Value for [ResolveOptions::alias] and [ResolveOptions::fallback].
/// Use struct because napi don't support structured union now
#[napi(object)]
#[derive(Debug, Clone)]
pub struct Restriction {
  pub path: Option<String>,
  pub regex: Option<String>,
}

/// Tsconfig Options
///
/// Derived from [tsconfig-paths-webpack-plugin](https://github.com/dividab/tsconfig-paths-webpack-plugin#options)
#[napi(object)]
#[derive(Debug, Clone)]
pub struct TsconfigOptions {
  /// Allows you to specify where to find the TypeScript configuration file.
  /// You may provide
  /// * a relative path to the configuration file. It will be resolved relative to cwd.
  /// * an absolute path to the configuration file.
  pub config_file: String,

  /// Support for TypeScript Project References.
  ///
  /// * `'auto'`: use the `references` field from tsconfig of `config_file`.
  /// * `string[]`: manually provided relative or absolute path.
  #[napi(ts_type = "'auto' | string[]")]
  pub references: Option<Either<String, Vec<String>>>,
}

impl From<Restriction> for rspack_resolver::Restriction {
  fn from(r: Restriction) -> Self {
    match (r.path, r.regex) {
      (None, None) => {
        panic!("Should specify path or regex")
      }
      (None, Some(regex)) => {
        let re = Regex::new(&regex).unwrap_or_else(|_| panic!("Invalid regex pattern: {regex}"));
        Self::Fn(Arc::new(move |path| {
          re.is_match(path.to_str().unwrap_or_default())
        }))
      }
      (Some(path), None) => Self::Path(PathBuf::from(path)),
      (Some(_), Some(_)) => {
        panic!("Restriction can't be path and regex at the same time")
      }
    }
  }
}

impl From<EnforceExtension> for rspack_resolver::EnforceExtension {
  fn from(extension: EnforceExtension) -> Self {
    match extension {
      EnforceExtension::Auto => Self::Auto,
      EnforceExtension::Enabled => Self::Enabled,
      EnforceExtension::Disabled => Self::Disabled,
    }
  }
}

impl From<TsconfigOptions> for rspack_resolver::TsconfigOptions {
  fn from(options: TsconfigOptions) -> Self {
    Self {
      config_file: PathBuf::from(options.config_file),
      references: match options.references {
        Some(Either::A(string)) if string.as_str() == "auto" => {
          rspack_resolver::TsconfigReferences::Auto
        }
        Some(Either::A(opt)) => {
          panic!("`{opt}` is not a valid option for tsconfig references")
        }
        Some(Either::B(paths)) => rspack_resolver::TsconfigReferences::Paths(
          paths.into_iter().map(PathBuf::from).collect::<Vec<_>>(),
        ),
        None => rspack_resolver::TsconfigReferences::Disabled,
      },
    }
  }
}

type StrOrStrListType = Either<String, Vec<String>>;
pub struct StrOrStrList(pub StrOrStrListType);

impl From<StrOrStrList> for Vec<String> {
  fn from(value: StrOrStrList) -> Self {
    match value {
      StrOrStrList(Either::A(s)) => Vec::from([s]),
      StrOrStrList(Either::B(a)) => a,
    }
  }
}

pub type AliasRawValueType = Either3<Option<String>, bool, Vec<Option<String>>>;
pub(crate) struct AliasRawValue(pub AliasRawValueType);

impl From<AliasRawValue> for Vec<AliasValue> {
  fn from(value: AliasRawValue) -> Self {
    match value.0 {
      Either3::A(opt) => match opt {
        Some(s) => vec![AliasValue::Path(s)],
        None => vec![AliasValue::Ignore],
      },
      Either3::B(_) => {
        vec![AliasValue::Ignore]
      }
      Either3::C(vec) => vec
        .into_iter()
        .map(|opt| match opt {
          Some(s) => AliasValue::Path(s),
          None => AliasValue::Ignore,
        })
        .collect(),
    }
  }
}