1 files changed, 117 insertions, 0 deletions
diff --git a/server/frob/storage.ts b/server/frob/storage.ts
new file mode 100644
index 0000000..720cd4b
--- /dev/null
+++ b/server/frob/storage.ts
@@ -0,0 +1,117 @@
+class StorageParser {
+    private storage_line =
+    "^" +
+    "(?<account_id>[0-9]+),(?<storage_amount>[0-9]+)\t" +
+    "(?<items>([0-9]+,(?<nameid>[0-9]+),(?<amount>[0-9]+),(?<equip>[0-9]+),[0-9]+,[0-9]+,[0-9]+,[0-9]+,[0-9]+,[0-9]+,[0-9]+ )+)\t$";
+    private storage_items_line = "[0-9]+,(?<nameid>[0-9]+),(?<amount>[0-9]+),(?<equip>[0-9]+),[0-9]+,[0-9]+,[0-9]+,[0-9]+,[0-9]+,[0-9]+,[0-9]+ ";
+    private storage_regex: RegExp;
+    private storage_regex_items: RegExp;
+
+    constructor () {
+        this.storage_regex = new RegExp(this.storage_line);
+        this.storage_regex_items = new RegExp(this.storage_items_line, "g");
+    }
+
+    private parseLine (line: string) {
+        const match = this.storage_regex.exec(line);
+
+        if (!(match instanceof Object) || !Reflect.has(match, "groups")) {
+            console.error("line does not match the storage regex:", line);
+            throw new SyntaxError();
+        }
+
+        const groups = (match as any).groups;
+        let items = [];
+
+        if (groups.items.length > 1) {
+            let match_items = this.storage_regex_items.exec(groups.items);
+
+            while (match_items !== null) {
+                items.push((match_items as any).groups);
+                match_items = this.storage_regex_items.exec(groups.items);
+            }
+        }
+
+        groups.items = items;
+        return groups;
+    }
+
+    public async * readDB () {
+        const decoder = new TextDecoder("utf-8");
+        console.info("\nwalking through storage.txt...");
+        const file = await Deno.open("world/save/storage.txt");
+        const buf = new Uint8Array(1024);
+        let accumulator = "";
+
+        while (true) {
+            const { nread, eof } = await Deno.read(file.rid, buf);
+
+            if (eof) {
+                break;
+            }
+
+            const str = decoder.decode(buf);
+
+            if (nread < 1024) {
+                for (let c of str) {
+                    if (c === "\n") {
+                        yield this.parseLine(accumulator);
+                        break;
+                    } else {
+                        accumulator += c;
+                    }
+                }
+                break;
+            }
+
+            for (let c of str) {
+                if (c === "\n") {
+                    yield this.parseLine(accumulator);
+                    accumulator = "";
+                } else {
+                    accumulator += c;
+                }
+            }
+        }
+    }
+}
+
+class StorageWriter {
+    private file;
+    private encoder;
+
+    constructor () {
+        try {
+            Deno.removeSync("world/save/storage.txt.tmp");
+        } catch {
+            // ignore this
+        }
+        this.file = Deno.openSync("world/save/storage.txt.tmp", "a+");
+        this.encoder = new TextEncoder();
+    }
+
+    async write (storage: any) {
+        let line = `${storage.account_id},${storage.storage_amount}\t`;
+
+        for (let item of storage.items) {
+            line += `0,${item.nameid},${item.amount},${item.equip},0,0,0,0,0,0,0 `;
+        }
+
+        line += `\t`; // end of items
+        line += `\n`;
+
+        await Deno.write(this.file.rid, this.encoder.encode(line));
+    }
+
+    async finalize() {
+        this.file.close();
+        console.info("overwriting storage.txt...");
+        await Deno.rename("world/save/storage.txt", "world/save/storage.txt_pre-frob");
+        await Deno.rename("world/save/storage.txt.tmp", "world/save/storage.txt");
+    }
+}
+
+export {
+    StorageParser,
+    StorageWriter,
+}