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esiur-dart/lib/src/Proxy/TemplateGenerator.dart
2022-08-13 04:01:29 +03:00

575 lines
19 KiB
Dart

import 'dart:io';
import '../Data/RepresentationType.dart';
import '../Net/IIP/DistributedConnection.dart';
import '../Resource/Template/TemplateType.dart';
import '../Resource/Warehouse.dart';
import '../Resource/Template/TypeTemplate.dart';
class TemplateGenerator {
// static RegExp urlRegex = RegExp("^(?:([\S]*)://([^/]*)/?)");
static final _urlRegex = RegExp(r'^(?:([^\s|:]*):\/\/([^\/]*)\/?(.*))');
static String toLiteral(String? input) {
if (input == null) return "null";
String literal = "";
literal += "\"";
input.runes.forEach((int code) {
var c = String.fromCharCode(code);
switch (c) {
case '\"':
literal += "\\\"";
break;
case '\\':
literal += "\\\\";
break;
case '\0':
literal += "\\0";
break;
case '\a':
literal += "\\a";
break;
case '\b':
literal += "\\b";
break;
case '\f':
literal += "\\f";
break;
case '\n':
literal += "\\n";
break;
case '\r':
literal += "\\r";
break;
case '\t':
literal += "\\t";
break;
case '\v':
literal += "\\v";
break;
default:
literal += c;
break;
}
});
literal += "\"";
return literal;
}
static String generateRecord(
TypeTemplate template, List<TypeTemplate> templates) {
var className = template.className.split('.').last;
var rt = StringBuffer();
String? parentName;
if (template.parentId != null) {
parentName = _translateClassName(templates
.singleWhere((x) =>
(x.classId == template.parentId) &&
(x.type == TemplateType.Record))
.className);
rt.writeln("class ${className} extends ${parentName} {");
} else {
rt.writeln("class ${className} extends IRecord {");
}
template.properties.forEach((p) {
if (p.inherited) return;
var ptTypeName = getTypeName(template, p.valueType, templates);
rt.writeln("${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}'] = ${p.name};");
});
rt.writeln("return rt;");
rt.writeln("}");
// add template
var descProps = template.properties //.where((p) => !p.inherited)
.map((p) {
var ptTypeName = getTypeName(template, p.valueType, templates);
return "Prop('${p.name}', getTypeOf<${ptTypeName}>(), ${_escape(p.readAnnotation)}, ${_escape(p.writeAnnotation)})";
}).join(', ');
if (parentName != null)
rt.writeln("""@override
TemplateDescriber get template => TemplateDescriber('${template.className}', parent: ${parentName}, properties: [${descProps}], annotation: ${toLiteral(template.annotation)});""");
else
rt.writeln("""@override
TemplateDescriber get template => TemplateDescriber('${template.className}', properties: [${descProps}], annotation: ${toLiteral(template.annotation)});""");
rt.writeln("\r\n}");
return rt.toString();
}
static String _translateClassName(String className) {
var cls = className.split('.');
var nameSpace = cls.take(cls.length - 1).join('_').toLowerCase();
return "$nameSpace.${cls.last}";
}
static String getTypeName(TypeTemplate forTemplate,
RepresentationType representationType, List<TypeTemplate> templates) {
String name;
if (representationType.identifier ==
RepresentationTypeIdentifier.TypedResource) {
if (representationType.guid == forTemplate.classId)
name = forTemplate.className.split('.').last;
else
name = _translateClassName(templates
.singleWhere((x) =>
x.classId == representationType.guid &&
(x.type == TemplateType.Resource ||
x.type == TemplateType.Wrapper))
.className);
} else if (representationType.identifier ==
RepresentationTypeIdentifier.TypedRecord) {
if (representationType.guid == forTemplate.classId)
name = forTemplate.className.split('.').last;
else
name = _translateClassName(templates
.singleWhere((x) =>
x.classId == representationType.guid &&
x.type == TemplateType.Record)
.className);
} else if (representationType.identifier ==
RepresentationTypeIdentifier
.Enum) if (representationType.guid == forTemplate.classId)
name = forTemplate.className.split('.').last;
else
name = _translateClassName(templates
.singleWhere((x) =>
x.classId == representationType.guid &&
x.type == TemplateType.Enum)
.className);
else if (representationType.identifier ==
RepresentationTypeIdentifier.TypedList)
name = "List<" +
getTypeName(forTemplate, representationType.subTypes![0], templates) +
">";
else if (representationType.identifier ==
RepresentationTypeIdentifier.TypedMap)
name = "Map<" +
getTypeName(forTemplate, representationType.subTypes![0], templates) +
"," +
getTypeName(forTemplate, representationType.subTypes![1], templates) +
">";
else if (representationType.identifier ==
RepresentationTypeIdentifier.Tuple2 ||
representationType.identifier == RepresentationTypeIdentifier.Tuple3 ||
representationType.identifier == RepresentationTypeIdentifier.Tuple4 ||
representationType.identifier == RepresentationTypeIdentifier.Tuple5 ||
representationType.identifier == RepresentationTypeIdentifier.Tuple6 ||
representationType.identifier == RepresentationTypeIdentifier.Tuple7)
name = "Tuple";
//name = "(" + String.Join(",", representationType.SubTypes.Select(x=> GetTypeName(x, templates)))
// + ")";
else {
switch (representationType.identifier) {
case RepresentationTypeIdentifier.Dynamic:
name = "dynamic";
break;
case RepresentationTypeIdentifier.Bool:
name = "bool";
break;
case RepresentationTypeIdentifier.Char:
name = "String";
break;
case RepresentationTypeIdentifier.DateTime:
name = "DateTime";
break;
case RepresentationTypeIdentifier.Decimal:
name = "double";
break;
case RepresentationTypeIdentifier.Float32:
name = "double";
break;
case RepresentationTypeIdentifier.Float64:
name = "double";
break;
case RepresentationTypeIdentifier.Int16:
name = "int";
break;
case RepresentationTypeIdentifier.Int32:
name = "int";
break;
case RepresentationTypeIdentifier.Int64:
name = "int";
break;
case RepresentationTypeIdentifier.Int8:
name = "int";
break;
case RepresentationTypeIdentifier.String:
name = "String";
break;
case RepresentationTypeIdentifier.Map:
name = "Map";
break;
case RepresentationTypeIdentifier.UInt16:
name = "int";
break;
case RepresentationTypeIdentifier.UInt32:
name = "int";
break;
case RepresentationTypeIdentifier.UInt64:
name = "int";
break;
case RepresentationTypeIdentifier.UInt8:
name = "int";
break;
case RepresentationTypeIdentifier.List:
name = "List";
break;
case RepresentationTypeIdentifier.Resource:
name = "IResource";
break;
case RepresentationTypeIdentifier.Record:
name = "IRecord";
break;
default:
name = "dynamic";
}
}
return (representationType.nullable) ? name + "?" : name;
}
static bool 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),
username != null
? {"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);
} else if (tmp.type == TemplateType.Enum) {
source = makeImports(tmp) + generateEnum(tmp, templates);
}
f.writeAsStringSync(source);
});
// generate info class
// Warehouse.defineType<test.MyService>(
// () => test.MyService(),
// RepresentationType(RepresentationTypeIdentifier.TypedResource, false,
// Guid(DC.fromList([1, 2, 3]))));
var defineCreators = templates.map((tmp) {
// creator
var className = _translateClassName(tmp.className);
if (tmp.type == TemplateType.Resource ||
tmp.type == TemplateType.Wrapper) {
return "Warehouse.defineType<${className}>(() => ${className}(), RepresentationType(RepresentationTypeIdentifier.TypedResource, false, Guid.parse('${tmp.classId.toString()}')));\r\n";
} else if (tmp.type == TemplateType.Record) {
return "Warehouse.defineType<${className}>(() => ${className}(), RepresentationType(RepresentationTypeIdentifier.TypedRecord, false, Guid.parse('${tmp.classId.toString()}')));\r\n";
} else if (tmp.type == TemplateType.Enum) {
return "Warehouse.defineType<${className}>(() => ${className}(), RepresentationType(RepresentationTypeIdentifier.Enum, false, Guid.parse('${tmp.classId.toString()}')));\r\n";
}
}).join("\r\n");
var putTemplates = templates.map((tmp) {
var className = _translateClassName(tmp.className);
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 generateEnum(
TypeTemplate template, List<TypeTemplate> templates) {
var className = template.className.split('.').last;
var rt = StringBuffer();
rt.writeln("class ${className} extends IEnum {");
template.constants.forEach((c) {
rt.writeln(
"static ${className} ${c.name} = ${className}(${c.index}, ${c.value}, '${c.name}');");
rt.writeln();
});
rt.writeln();
rt.writeln(
"${className}([int index = 0, value, String name = '']) : super(index, value, name);");
// add template
var descConsts = template.constants.map((p) {
var ctTypeName = getTypeName(template, p.valueType, templates);
return "Const('${p.name}', getTypeOf<${ctTypeName}>(), ${p.value}, ${_escape(p.annotation)})";
}).join(', ');
rt.writeln("""@override
TemplateDescriber get template => TemplateDescriber('${template.className}', constants: [${descConsts}], annotation: ${toLiteral(template.annotation)});""");
rt.writeln("\r\n}");
return rt.toString();
}
static String generateClass(
TypeTemplate template,
List<TypeTemplate> templates, {
bool getx = false,
bool namedArgs = false,
}) {
var className = template.className.split('.').last;
String? parentName;
var rt = StringBuffer();
if (template.parentId != null) {
parentName = _translateClassName(templates
.singleWhere((x) =>
(x.classId == template.parentId) &&
(x.type == TemplateType.Resource ||
x.type == TemplateType.Wrapper))
.className);
rt.writeln("class ${className} extends ${parentName} {");
} else {
rt.writeln("class ${className} extends DistributedResource {");
}
rt.writeln("$className() {");
template.events.where((e) => !e.inherited).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<$className> ob;");
rt.writeln("late final StreamSubscription? _sub;\n");
rt.writeln("""@override
void destroy() {
_sub?.cancel();
super.destroy();
}""");
}
template.functions.where((f) => !f.inherited).forEach((f) {
var rtTypeName = getTypeName(template, f.returnType, templates);
var positionalArgs = f.arguments.where((x) => !x.optional);
var optionalArgs = f.arguments.where((x) => x.optional);
if (f.isStatic) {
rt.write(
"static AsyncReply<$rtTypeName> ${f.name}(DistributedConnection connection");
if (positionalArgs.length > 0)
rt.write(
", ${positionalArgs.map((a) => getTypeName(template, a.type, templates) + " " + a.name).join(',')}");
if (optionalArgs.length > 0) {
rt.write(
", [${optionalArgs.map((a) => getTypeName(template, a.type.toNullable(), templates) + " " + a.name).join(',')}]");
}
} else {
rt.write("AsyncReply<$rtTypeName> ${f.name}(");
if (positionalArgs.length > 0)
rt.write(
"${positionalArgs.map((a) => getTypeName(template, a.type, templates) + " " + a.name).join(',')}");
if (optionalArgs.length > 0) {
if (positionalArgs.length > 0) rt.write(",");
rt.write(
"[${optionalArgs.map((a) => getTypeName(template, a.type.toNullable(), templates) + " " + a.name).join(',')}]");
}
}
rt.writeln(") {");
rt.writeln(
"var args = <UInt8, dynamic>{${positionalArgs.map((e) => "UInt8(" + e.index.toString() + ') :' + e.name).join(',')}};");
optionalArgs.forEach((a) {
rt.writeln(
"if (${a.name} != null) args[UInt8(${a.index})] = ${a.name};");
});
rt.writeln("var rt = AsyncReply<$rtTypeName>();");
if (f.isStatic) {
rt.writeln(
"connection.staticCall(Guid.parse('${template.classId.toString()}'), ${f.index}, args)");
} else {
rt.writeln("internal_invoke(${f.index}, args)");
}
rt.writeln("..then((x) => rt.trigger(x))");
rt.writeln("..error((x) => rt.triggerError(x))");
rt.writeln("..chunk((x) => rt.triggerChunk(x));");
rt.writeln("return rt; }");
});
template.properties.where((p) => !p.inherited).forEach((p) {
var ptTypeName = getTypeName(template, p.valueType, templates);
rt.writeln("${ptTypeName} get ${p.name} { return get(${p.index}); }");
rt.writeln(
"set ${p.name}(${ptTypeName} value) { set(${p.index}, value); }");
});
template.events.where((e) => !e.inherited).forEach((e) {
var etTypeName = getTypeName(template, e.argumentType, templates);
rt.writeln(
"final _${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 //.where((p) => !p.inherited)
.map((p) {
var ptTypeName = getTypeName(template, p.valueType, templates);
return "Prop('${p.name}', getTypeOf<${ptTypeName}>(), ${_escape(p.readAnnotation)}, ${_escape(p.writeAnnotation)})";
}).join(', ');
var descFuncs = template.functions //.where((f) => !f.inherited)
.map((f) {
var ftTypeName = getTypeName(template, f.returnType, templates);
var args = f.arguments.map((a) {
var atTypeName = getTypeName(template, a.type, templates);
return "Arg('${a.name}', getTypeOf<${atTypeName}>(), ${a.optional})";
}).join(', ');
return "Func('${f.name}', getTypeOf<${ftTypeName}>(), [${args}], ${_escape(f.annotation)})";
}).join(', ');
var descEvents = template.events
//.where((e) => !e.inherited)
.map((e) {
var etTypeName = getTypeName(template, e.argumentType, templates);
return "Evt('${e.name}', getTypeOf<${etTypeName}>(), ${e.listenable}, ${_escape(e.annotation)})";
}).join(', ');
if (parentName != null)
rt.writeln(
"TemplateDescriber get template => TemplateDescriber('${template.className}', parent: ${parentName}, properties: [${descProps}], functions: [${descFuncs}], events: [$descEvents], annotation: ${toLiteral(template.annotation)});");
else
rt.writeln(
"TemplateDescriber get template => TemplateDescriber('${template.className}', properties: [${descProps}], functions: [${descFuncs}], events: [$descEvents], annotation: ${toLiteral(template.annotation)});");
rt.writeln("\r\n}");
return rt.toString();
}
}