import nodeFs from "node:fs";
import { fileURLToPath } from "node:url";
import { dataToEsm } from "@rollup/pluginutils";
import { normalizePath } from "vite";
import { ASTRO_VITE_ENVIRONMENT_NAMES } from "../core/constants.js";
import { AstroError, AstroErrorData } from "../core/errors/index.js";
import { rootRelativePath } from "../core/viteUtils.js";
import { isAstroClientEnvironment } from "../environments.js";
import { createDefaultAstroMetadata } from "../vite-plugin-astro/metadata.js";
import {
  ASSET_IMPORTS_FILE,
  ASSET_IMPORTS_RESOLVED_STUB_ID,
  ASSET_IMPORTS_VIRTUAL_ID,
  CONTENT_MODULE_FLAG,
  CONTENT_RENDER_FLAG,
  DATA_STORE_VIRTUAL_ID,
  MODULES_IMPORTS_FILE,
  MODULES_MJS_ID,
  MODULES_MJS_VIRTUAL_ID,
  RESOLVED_DATA_STORE_VIRTUAL_ID,
  RESOLVED_VIRTUAL_MODULE_ID,
  VIRTUAL_MODULE_ID
} from "./consts.js";
import { getDataStoreFile } from "./content-layer.js";
import { getContentPaths, isDeferredModule } from "./utils.js";
function invalidateDataStore(viteServer) {
  const environment = viteServer.environments[ASTRO_VITE_ENVIRONMENT_NAMES.ssr];
  const module = environment.moduleGraph.getModuleById(RESOLVED_DATA_STORE_VIRTUAL_ID);
  if (module) {
    const timestamp = Date.now();
    environment.moduleGraph.invalidateModule(module, void 0, timestamp, true);
  }
  environment.hot.send("astro:content-changed", {});
  viteServer.environments.client.hot.send({
    type: "full-reload",
    path: "*"
  });
}
function astroContentVirtualModPlugin({
  settings,
  fs
}) {
  let dataStoreFile;
  let devServer;
  let liveConfig;
  return {
    name: "astro-content-virtual-mod-plugin",
    enforce: "pre",
    config(_, env) {
      dataStoreFile = getDataStoreFile(settings, env.command === "serve");
      const contentPaths = getContentPaths(
        settings.config,
        void 0,
        settings.config.legacy?.collectionsBackwardsCompat
      );
      if (contentPaths.liveConfig.exists) {
        liveConfig = normalizePath(fileURLToPath(contentPaths.liveConfig.url));
      }
    },
    buildStart() {
      if (devServer) {
        devServer.watcher.add(fileURLToPath(dataStoreFile));
        invalidateDataStore(devServer);
      }
    },
    resolveId: {
      filter: {
        id: new RegExp(
          `^(${VIRTUAL_MODULE_ID}|${DATA_STORE_VIRTUAL_ID}|${MODULES_MJS_ID}|${ASSET_IMPORTS_VIRTUAL_ID})$|(?:\\?|&)${CONTENT_MODULE_FLAG}(?:&|=|$)`
        )
      },
      async handler(id, importer) {
        if (id === VIRTUAL_MODULE_ID) {
          if (liveConfig && importer && liveConfig === normalizePath(importer)) {
            return this.resolve("astro/virtual-modules/live-config", importer, {
              skipSelf: true
            });
          }
          return RESOLVED_VIRTUAL_MODULE_ID;
        }
        if (id === DATA_STORE_VIRTUAL_ID) {
          return RESOLVED_DATA_STORE_VIRTUAL_ID;
        }
        if (isDeferredModule(id)) {
          const [, query] = id.split("?");
          const params = new URLSearchParams(query);
          const fileName = params.get("fileName");
          let importPath = void 0;
          if (fileName && URL.canParse(fileName, settings.config.root.toString())) {
            importPath = fileURLToPath(new URL(fileName, settings.config.root));
          }
          if (importPath) {
            return await this.resolve(`${importPath}?${CONTENT_RENDER_FLAG}`);
          }
        }
        if (id === MODULES_MJS_ID) {
          const modules = new URL(MODULES_IMPORTS_FILE, settings.dotAstroDir);
          if (fs.existsSync(modules)) {
            return fileURLToPath(modules);
          }
          return MODULES_MJS_VIRTUAL_ID;
        }
        if (id === ASSET_IMPORTS_VIRTUAL_ID) {
          const assetImportsFile = new URL(ASSET_IMPORTS_FILE, settings.dotAstroDir);
          if (fs.existsSync(assetImportsFile)) {
            return fileURLToPath(assetImportsFile);
          }
          return ASSET_IMPORTS_RESOLVED_STUB_ID;
        }
      }
    },
    load: {
      filter: {
        id: new RegExp(
          `^(${RESOLVED_VIRTUAL_MODULE_ID}|${RESOLVED_DATA_STORE_VIRTUAL_ID}|${ASSET_IMPORTS_RESOLVED_STUB_ID}|${MODULES_MJS_VIRTUAL_ID})$`
        )
      },
      async handler(id) {
        if (id === RESOLVED_VIRTUAL_MODULE_ID) {
          const isClient = isAstroClientEnvironment(this.environment);
          const code = await generateContentEntryFile({
            settings,
            fs,
            isClient
          });
          const astro = createDefaultAstroMetadata();
          astro.propagation = "in-tree";
          return {
            code,
            meta: {
              astro
            }
          };
        }
        if (id === RESOLVED_DATA_STORE_VIRTUAL_ID) {
          if (!fs.existsSync(dataStoreFile)) {
            return { code: "export default new Map()" };
          }
          const jsonData = await fs.promises.readFile(dataStoreFile, "utf-8");
          try {
            const parsed = JSON.parse(jsonData);
            return {
              code: dataToEsm(parsed, {
                compact: true
              }),
              map: { mappings: "" }
            };
          } catch (err) {
            const message = "Could not parse JSON file";
            this.error({ message, id, cause: err });
          }
        }
        if (id === ASSET_IMPORTS_RESOLVED_STUB_ID) {
          const assetImportsFile = new URL(ASSET_IMPORTS_FILE, settings.dotAstroDir);
          return {
            code: fs.existsSync(assetImportsFile) ? fs.readFileSync(assetImportsFile, "utf-8") : "export default new Map()"
          };
        }
        if (id === MODULES_MJS_VIRTUAL_ID) {
          const modules = new URL(MODULES_IMPORTS_FILE, settings.dotAstroDir);
          return {
            code: fs.existsSync(modules) ? fs.readFileSync(modules, "utf-8") : "export default new Map()"
          };
        }
      }
    },
    configureServer(server) {
      devServer = server;
      const dataStorePath = fileURLToPath(dataStoreFile);
      server.watcher.on("add", (addedPath) => {
        if (addedPath === dataStorePath) {
          invalidateDataStore(server);
        }
      });
      server.watcher.on("change", (changedPath) => {
        if (changedPath === dataStorePath) {
          invalidateDataStore(server);
        }
      });
    }
  };
}
async function generateContentEntryFile({
  settings,
  isClient
}) {
  const contentPaths = getContentPaths(
    settings.config,
    void 0,
    settings.config.legacy?.collectionsBackwardsCompat
  );
  const relContentDir = rootRelativePath(settings.config.root, contentPaths.contentDir);
  let virtualModContents;
  if (isClient) {
    throw new AstroError({
      ...AstroErrorData.ServerOnlyModule,
      message: AstroErrorData.ServerOnlyModule.message("astro:content")
    });
  } else {
    virtualModContents = nodeFs.readFileSync(contentPaths.virtualModTemplate, "utf-8").replace("@@CONTENT_DIR@@", relContentDir).replace(
      "/* @@LIVE_CONTENT_CONFIG@@ */",
      contentPaths.liveConfig.exists ? (
        // Dynamic import so it extracts the chunk and avoids a circular import
        `const liveCollections = (await import(${JSON.stringify(fileURLToPath(contentPaths.liveConfig.url))})).collections;`
      ) : "const liveCollections = {};"
    );
  }
  return virtualModContents;
}
export {
  astroContentVirtualModPlugin
};