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esiur-dart/lib/src/Proxy/TemplateGenerator.dart
2022-01-21 22:48:36 +03:00

439 lines
14 KiB
Dart

import 'dart:io';
import '../Data/DataType.dart';
import '../Net/IIP/DistributedConnection.dart';
import '../Resource/Template/TemplateType.dart';
import '../Resource/Warehouse.dart';
import '../Resource/Template/TemplateDataType.dart';
import '../Resource/Template/TypeTemplate.dart';
class TemplateGenerator {
// static RegExp urlRegex = RegExp("^(?:([\S]*)://([^/]*)/?)");
static final _urlRegex = RegExp(r'^(?:([^\s|:]*):\/\/([^\/]*)\/?(.*))');
static String generateRecord(
TypeTemplate template, List<TypeTemplate> templates) {
var className = template.className.split('.').last;
var rt = StringBuffer();
rt.writeln("class ${className} extends IRecord {");
template.properties.forEach((p) {
var ptTypeName = getTypeName(template, p.valueType, templates, false);
rt.writeln("${ptTypeName}? ${p.name};");
rt.writeln();
});
rt.writeln();
rt.writeln("@override");
rt.writeln("void deserialize(Map<String, dynamic> value) {");
template.properties.forEach((p) {
rt.writeln("${p.name} = value['${p.name}'];");
});
rt.writeln("}");
rt.writeln();
rt.writeln("@override");
rt.writeln("Map<String, dynamic> serialize() {");
rt.writeln("var rt = Map<String, dynamic>();");
template.properties.forEach((p) {
rt.writeln("rt['${p.name}'] = ${p.name};");
});
rt.writeln("return rt;");
rt.writeln("}");
// add template
var descProps = template.properties.map((p) {
var isArray = p.valueType.type & 0x80 == 0x80;
var ptType = p.valueType.type & 0x7F;
var ptTypeName = getTypeName(template,
TemplateDataType(ptType, p.valueType.typeGuid), templates, false);
// return "Prop(\"${p.name}\", ${ptTypeName}, ${isArray})";
return "Prop('${p.name}', ${ptTypeName}, ${isArray}, ${_escape(p.readExpansion)}, ${_escape(p.writeExpansion)})";
}).join(', ');
rt.writeln("""@override
TemplateDescriber get template => TemplateDescriber('${template.className}', properties: [${descProps}]);""");
rt.writeln("\r\n}");
return rt.toString();
}
static String _translateClassName(String className, bool nullable) {
var cls = className.split('.');
var nameSpace = cls.take(cls.length - 1).join('_').toLowerCase();
return "$nameSpace.${cls.last}${nullable ? '?' : ''}";
}
static String getTypeName(
TypeTemplate forTemplate,
TemplateDataType templateDataType,
List<TypeTemplate> templates,
bool nullable) {
if (templateDataType.type == DataType.Resource) {
if (templateDataType.typeGuid == forTemplate.classId)
return forTemplate.className.split('.').last + (nullable ? "?" : "");
else {
var tmp = templates.firstWhere((x) =>
x.classId == templateDataType.typeGuid &&
(x.type == TemplateType.Resource ||
x.type == TemplateType.Wrapper));
if (tmp == null) return "dynamic"; // something went wrong
return _translateClassName(tmp.className, nullable);
}
} else if (templateDataType.type == DataType.ResourceArray) {
if (templateDataType.typeGuid == forTemplate.classId)
return "List<${forTemplate.className.split('.').last + (nullable ? '?' : '')}>";
else {
var tmp = templates.firstWhere((x) =>
x.classId == templateDataType.typeGuid &&
(x.type == TemplateType.Resource ||
x.type == TemplateType.Wrapper));
if (tmp == null) return "dynamic"; // something went wrong
return "List<${_translateClassName(tmp.className, nullable)}>";
}
} else if (templateDataType.type == DataType.Record) {
if (templateDataType.typeGuid == forTemplate.classId)
return forTemplate.className.split('.').last + (nullable ? '?' : '');
else {
var tmp = templates.firstWhere((x) =>
x.classId == templateDataType.typeGuid &&
x.type == TemplateType.Record);
if (tmp == null) return "dynamic"; // something went wrong
return _translateClassName(tmp.className, nullable);
}
} else if (templateDataType.type == DataType.RecordArray) {
if (templateDataType.typeGuid == forTemplate.classId)
return "List<${forTemplate.className.split('.').last + (nullable ? '?' : '')}?>";
else {
var tmp = templates.firstWhere((x) =>
x.classId == templateDataType.typeGuid &&
x.type == TemplateType.Record);
if (tmp == null) return "dynamic"; // something went wrong
return "List<${_translateClassName(tmp.className, nullable)}>";
}
}
var name = ((x) {
switch (x) {
case DataType.Bool:
return "bool";
case DataType.BoolArray:
return "List<bool>";
case DataType.Char:
return "String" + (nullable ? "?" : "");
case DataType.CharArray:
return "List<String${nullable ? '?' : ''}>";
case DataType.DateTime:
return "DateTime";
case DataType.DateTimeArray:
return "List<DateTime${nullable ? '?' : ''}>";
case DataType.Decimal:
return "double";
case DataType.DecimalArray:
return "List<double>";
case DataType.Float32:
return "double";
case DataType.Float32Array:
return "List<double>";
case DataType.Float64:
return "double";
case DataType.Float64Array:
return "List<double>";
case DataType.Int16:
return "int";
case DataType.Int16Array:
return "List<int>";
case DataType.Int32:
return "int";
case DataType.Int32Array:
return "List<int>";
case DataType.Int64:
return "int";
case DataType.Int64Array:
return "List<int>";
case DataType.Int8:
return "int";
case DataType.Int8Array:
return "List<int>";
case DataType.String:
return "String";
case DataType.StringArray:
return "List<String${nullable ? '?' : ''}>";
case DataType.Structure:
return "Structure" + (nullable ? "?" : "");
case DataType.StructureArray:
return "List<Structure${(nullable ? '?' : '')}>";
case DataType.UInt16:
return "int";
case DataType.UInt16Array:
return "List<int>";
case DataType.UInt32:
return "int";
case DataType.UInt32Array:
return "List<int>";
case DataType.UInt64:
return "int";
case DataType.UInt64Array:
return "List<int>";
case DataType.UInt8:
return "int";
case DataType.UInt8Array:
return "List<int>";
case DataType.VarArray:
return "List<dynamic>";
case DataType.Void:
return "dynamic";
default:
return "dynamic";
}
})(templateDataType.type);
return name;
}
static isNullOrEmpty(v) {
return v == null || v == "";
}
static Future<String> getTemplate(
String url, {
String? dir,
String? username,
String? password,
bool getx = false,
bool namedArgs = false,
}) async {
try {
if (!_urlRegex.hasMatch(url)) throw Exception("Invalid IIP URL");
var path = _urlRegex.allMatches(url).first;
var con = await Warehouse.get<DistributedConnection>(
(path[1] as String) + "://" + (path[2] as String),
!isNullOrEmpty(username) && !isNullOrEmpty(password)
? {"username": username, "password": password}
: null);
if (con == null) throw Exception("Can't connect to server");
if (isNullOrEmpty(dir)) dir = (path[2] as String).replaceAll(":", "_");
var templates = await con.getLinkTemplates(path[3] as String);
// no longer needed
Warehouse.remove(con);
var dstDir = Directory("lib/$dir");
if (!dstDir.existsSync()) dstDir.createSync(recursive: true);
//Map<String, String> namesMap = Map<String, String>();
var makeImports = (TypeTemplate? skipTemplate) {
var imports = StringBuffer();
imports.writeln("import 'dart:async';");
imports.writeln("import 'package:esiur/esiur.dart';");
if (getx) {
imports.writeln("import 'package:get/get.dart';");
}
// make import names
templates.forEach((tmp) {
if (tmp != skipTemplate) {
var cls = tmp.className.split('.');
var nameSpace = cls.take(cls.length - 1).join('_').toLowerCase();
imports.writeln("import '${tmp.className}.g.dart' as $nameSpace;");
}
});
imports.writeln();
return imports.toString();
};
// make sources
templates.forEach((tmp) {
print("Generating `${tmp.className}`.");
final filePath = "${dstDir.path}/${tmp.className}.g.dart";
final f = File(filePath);
var source = "";
if (tmp.type == TemplateType.Resource) {
source = makeImports(tmp) +
generateClass(tmp, templates, getx: getx, namedArgs: namedArgs);
} else if (tmp.type == TemplateType.Record) {
source = makeImports(tmp) + generateRecord(tmp, templates);
}
f.writeAsStringSync(source);
});
// generate info class
var defineCreators = templates.map((tmp) {
// creator
var className = _translateClassName(tmp.className, false);
return "Warehouse.defineCreator(${className}, () => ${className}(), () => <${className}?>[]);";
}).join("\r\n");
var putTemplates = templates.map((tmp) {
var className = _translateClassName(tmp.className, false);
return "Warehouse.putTemplate(TypeTemplate.fromType(${className}));";
}).join("\r\n");
var typesFile = makeImports(null) +
"\r\n void init_${dir}(){ ${defineCreators} \r\n ${putTemplates}}";
var f = File("${dstDir.path}/init.g.dart");
f.writeAsStringSync(typesFile);
Process.run("dart", ["format", dstDir.path]);
return dstDir.path;
} catch (ex) {
throw ex;
}
}
static String _escape(String? str) {
if (str == null)
return "null";
else
return "r'$str'";
}
static String generateClass(
TypeTemplate template,
List<TypeTemplate> templates, {
bool getx = false,
bool namedArgs = false,
}) {
var className = template.className.split('.').last;
var rt = StringBuffer();
rt.writeln("class $className extends DistributedResource {");
rt.writeln(
// "$className(DistributedConnection connection, int instanceId, int age, String link) : super(connection, instanceId, age, link) {");
"$className() {");
template.events.forEach((e) {
rt.writeln("on('${e.name}', (x) => _${e.name}Controller.add(x));");
});
if (getx) {
rt.writeln("ob = obs;");
rt.writeln("_sub = properyModified.listen((_) => ob.trigger(this));");
}
rt.writeln("}");
if (getx) {
rt.writeln("\nlate final Rx<$className> ob;");
rt.writeln("late final StreamSubscription? _sub;\n");
rt.writeln("""@override
void destroy() {
_sub?.cancel();
super.destroy();
}""");
}
template.functions.forEach((f) {
var rtTypeName = getTypeName(template, f.returnType, templates, true);
rt.write("AsyncReply<$rtTypeName> ${f.name}(");
if (f.arguments.isNotEmpty && namedArgs) {
rt.write("{");
}
final typeSuffix = namedArgs ? "?" : "";
rt.write(f.arguments
.map((x) =>
getTypeName(template, x.type, templates, true) +
typeSuffix +
" " +
x.name)
.join(","));
if (f.arguments.isNotEmpty && namedArgs) {
rt.write("}");
}
rt.writeln(") {");
rt.writeln("var rt = AsyncReply<$rtTypeName>();");
rt.writeln(
"internal_invokeByArrayArguments(${f.index}, [${f.arguments.map((x) => x.name).join(',')}])");
rt.writeln(".then<dynamic>((x) => rt.trigger(x))");
rt.writeln(".error((x) => rt.triggerError(x))");
rt.writeln(".chunk((x) => rt.triggerChunk(x));");
rt.writeln("return rt; }");
});
template.properties.forEach((p) {
var ptTypeName = getTypeName(template, p.valueType, templates, true);
rt.writeln("${ptTypeName} get ${p.name} { return get(${p.index}); }");
rt.writeln(
"set ${p.name}(${ptTypeName} value) { set(${p.index}, value); }");
});
template.events.forEach((e) {
var etTypeName = getTypeName(template, e.argumentType, templates, true);
rt.writeln(
"final _${e.name}Controller = StreamController<$etTypeName>();");
rt.writeln("Stream<$etTypeName> get ${e.name} { ");
rt.writeln("return _${e.name}Controller.stream;");
rt.writeln("}");
});
// add template
var descProps = template.properties.map((p) {
var isArray = p.valueType.type & 0x80 == 0x80;
var ptType = p.valueType.type & 0x7F;
var ptTypeName = getTypeName(template,
TemplateDataType(ptType, p.valueType.typeGuid), templates, false);
return "Prop('${p.name}', ${ptTypeName}, ${isArray}, ${_escape(p.readExpansion)}, ${_escape(p.writeExpansion)})";
}).join(', ');
var descFuncs = template.functions.map((f) {
var isArray = f.returnType.type & 0x80 == 0x80;
var ftType = f.returnType.type & 0x7F;
var ftTypeName = getTypeName(template,
TemplateDataType(ftType, f.returnType.typeGuid), templates, false);
var args = f.arguments.map((a) {
var isArray = a.type.type & 0x80 == 0x80;
var atType = a.type.type & 0x7F;
var atTypeName = getTypeName(template,
TemplateDataType(atType, a.type.typeGuid), templates, false);
return "Arg('${a.name}', ${atTypeName}, ${isArray})";
}).join(', ');
return "Func('${f.name}', ${ftTypeName}, ${isArray}, [${args}], ${_escape(f.expansion)})";
}).join(', ');
var descEvents = template.events.map((e) {
var isArray = e.argumentType.type & 0x80 == 0x80;
var etType = e.argumentType.type & 0x7F;
var etTypeName = getTypeName(template,
TemplateDataType(etType, e.argumentType.typeGuid), templates, false);
return "Evt('${e.name}', ${etTypeName}, ${isArray}, ${e.listenable}, ${_escape(e.expansion)})";
}).join(', ');
rt.writeln(
"TemplateDescriber get template => TemplateDescriber('${template.className}', properties: [${descProps}], functions: [${descFuncs}], events: [$descEvents]);");
rt.writeln("\r\n}");
return rt.toString();
}
}