1 files changed, 104 insertions, 0 deletions
diff --git a/server/frob/accreg.ts b/server/frob/accreg.ts
new file mode 100644
index 0000000..d951d77
--- /dev/null
+++ b/server/frob/accreg.ts
@@ -0,0 +1,104 @@
+class AccregParser {
+    private reg_line =
+    "^" +
+    "(?<account_id>[0-9]+)\t" +
+    "(?<variables>((?<var_name>[^,]+),(?<value>[-0-9]+) )*)" + // some chars have negative variables (overflows)
+    "$";
+    private vars_line = "(?<var_name>[^,]+),(?<value>[-0-9]+) ";
+    private reg_regex: RegExp;
+    private reg_regex_vars: RegExp;
+    private encoder;
+
+    constructor () {
+        this.reg_regex = new RegExp(this.reg_line);
+        this.reg_regex_vars = new RegExp(this.vars_line, "g");
+        this.encoder = new TextEncoder();
+    }
+
+    private parseLine (line: string) {
+        const match = this.reg_regex.exec(line);
+
+        if (!(match instanceof Object) || !Reflect.has(match, "groups")) {
+            console.error("\nline does not match the reg regex:", line);
+            throw new SyntaxError();
+        }
+
+        const groups = (match as any).groups;
+        let variables = [];
+
+        if (groups.variables.length > 1) {
+            let match_vars = this.reg_regex_vars.exec(groups.variables);
+
+            while (match_vars !== null) {
+                variables.push((match_vars as any).groups);
+                match_vars = this.reg_regex_vars.exec(groups.variables);
+            }
+        }
+
+        groups.variables = variables;
+
+        Deno.write(Deno.stdout.rid, this.encoder.encode(`\r⌛ processing variables of account ${groups.account_id}...`));
+        return groups;
+    }
+
+    public async * readDB () {
+        const decoder = new TextDecoder("utf-8");
+        console.info("\r                                                          \nwalking through accreg.txt...");
+        const file = await Deno.open("world/save/accreg.txt");
+        const buf = new Uint8Array(1024);
+        let accumulator = "";
+
+        while (true) {
+            const nread = await Deno.read(file.rid, buf);
+
+            if (nread === Deno.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 AccregSQL {
+    private sql;
+
+    constructor (sql) {
+        this.sql = sql;
+    }
+
+    async write (acc: any) {
+        for (const variable of acc.variables) {
+            await this.sql.do("INSERT INTO `acc_reg` ?? values?", [
+                ["account_id", "name", "value"],
+                [acc.account_id, variable.var_name, variable.value]
+            ]);
+        }
+    }
+}
+
+export {
+    AccregParser,
+    AccregSQL,
+}