package tools.haxelib;
import tools.haxelib.Datas;
import tools.haxelib.SiteDb;

class SiteApi {

	var db : neko.db.Connection;

	public function new( db ) {
		this.db = db;
	}

	public function search( word : String ) : List<{ id : Int, name : String }> {
		return Project.manager.containing(word);
	}

	public function infos( project : String ) : ProjectInfos {
		var p = Project.manager.search({ name : project }).first();
		if( p == null )
			throw "No such Project : "+project;
		var vl = Version.manager.search({ project : p.id });
		var versions = new Array();
		for( v in vl )
			versions.push({ name : v.name, comments : v.comments, date : v.date });
		return {
			name : p.name,
			curversion : if( p.version == null ) null else p.version.name,
			desc : p.description,
			versions : versions,
			owner : p.owner.name,
			website : p.website,
			license : p.license,
			tags : Tag.manager.search({ project : p.id }).map(function(t) return t.tag),
		};
	}

	public function user( name : String ) : UserInfos {
		var u = User.manager.search({ name : name }).first();
		if( u == null )
			throw "No such user : "+name;
		var pl = Project.manager.search({ owner : u.id });
		var projects = new Array();
		for( p in pl )
			projects.push(p.name);
		return {
			name : u.name,
			fullname : u.fullname,
			email : u.email,
			projects : projects,
		};
	}

	public function register( name : String, pass : String, mail : String, fullname : String ) : Bool {
		if( !Datas.alphanum.match(name) )
			throw "Invalid user name, please use alphanumeric characters";
		if( name.length < 3 )
			throw "User name must be at least 3 characters";
		var u = new User();
		u.name = name;
		u.pass = pass;
		u.email = mail;
		u.fullname = fullname;
		u.insert();
		return null;
	}

	public function isNewUser( name : String ) : Bool {
		return User.manager.search({ name : name }).first() == null;
	}

	public function checkDeveloper( prj : String, user : String ) : Void {
		var p = Project.manager.search({ name : prj }).first();
		if( p == null )
			return;
		for( d in Developer.manager.search({ project : p.id }) )
			if( d.user.name == user )
				return;
		throw "User '"+user+"' is not a developer of project '"+prj+"'";
	}

	public function checkPassword( user : String, pass : String ) : Bool {
		var u = User.manager.search({ name : user }).first();
		return u != null && u.pass == pass;
	}

	public function getSubmitId() : String {
		return Std.string(Std.random(100000000));
	}

	public function processSubmit( id : String, user : String, pass : String ) : String {
		var path = Site.TMP_DIR+"/"+Std.parseInt(id)+".tmp";

		var file = try neko.io.File.read(path,true) catch( e : Dynamic ) throw "Invalid file id #"+id;
		var zip = try neko.zip.Reader.readZip(file) catch( e : Dynamic ) { file.close(); neko.Lib.rethrow(e); };
		file.close();

		var infos = Datas.readInfos(zip,true);
		var u = User.manager.search({ name : user }).first();
		if( u == null || u.pass != pass )
			throw "Invalid username or password";

		var devs = infos.developers.map(function(user) {
			var u = User.manager.search({ name : user }).first();
			if( u == null )
				throw "Unknown user '"+user+"'";
			return u;
		});

		var tags = Lambda.array(infos.tags);
		tags.sort(Reflect.compare);

		var p = Project.manager.search({ name : infos.project }).first();

		// create project if needed
		if( p == null ) {
			p = new Project();
			p.name = infos.project;
			p.description = infos.desc;
			p.website = infos.website;
			p.license = infos.license;
			p.owner = u;
			p.insert();
			for( u in devs ) {
				var d = new Developer();
				d.user = u;
				d.project = p;
				d.insert();
			}
			for( tag in tags ) {
				var t = new Tag();
				t.tag = tag;
				t.project = p;
				t.insert();
			}
		}

		// check submit rights
		var pdevs = Developer.manager.search({ project : p.id });
		var isdev = false;
		for( d in pdevs )
			if( d.user.id == u.id ) {
				isdev = true;
				break;
			}
		if( !isdev )
			throw "You are not a developer of this project";

		var otags = Tag.manager.search({ project : p.id });
		var curtags = otags.map(function(t) return t.tag).join(":");

		// update public infos
		if( infos.desc != p.description || p.website != infos.website || p.license != infos.license || pdevs.length != devs.length || tags.join(":") != curtags ) {
			if( u.id != p.owner.id )
				throw "Only project owner can modify project infos";
			p.description = infos.desc;
			p.website = infos.website;
			p.license = infos.license;
			p.update();
			if( pdevs.length != devs.length ) {
				for( d in pdevs )
					d.delete();
				for( u in devs ) {
					var d = new Developer();
					d.user = u;
					d.project = p;
					d.insert();
				}
			}
			if( tags.join(":") != curtags ) {
				for( t in otags )
					t.delete();
				for( tag in tags ) {
					var t = new Tag();
					t.tag = tag;
					t.project = p;
					t.insert();
				}
			}
		}

		// look for current version
		var current = null;
		for( v in Version.manager.search({ project : p.id }) )
			if( v.name == infos.version ) {
				current = v;
				break;
			}

		// update documentation
		var doc = null;
		var docXML = Datas.readDoc(zip);
		if( docXML != null ) {
			var p = new haxe.rtti.XmlParser();
			p.process(Xml.parse(docXML).firstElement(),null);
			p.sort();
			var roots = new Array();
			for( x in p.root )
				switch( x ) {
				case TPackage(name,_,_):
					switch( name ) {
					case "flash","flash9","haxe","js","neko","cpp","php","tools": // don't include haXe core types
					default: roots.push(x);
					}
				default:
					// don't include haXe root types
				}
			var s = new haxe.Serializer();
			s.useEnumIndex = true;
			s.useCache = true;
			s.serialize(roots);
			doc = s.toString();
		}

		// update file
		var target = Site.REP_DIR+"/"+Datas.fileName(p.name,infos.version);
		if( current != null ) neko.FileSystem.deleteFile(target);
		neko.FileSystem.rename(path,target);

		// update existing version
		if( current != null ) {
			current.documentation = doc;
			current.comments = infos.versionComments;
			current.update();
			return "Version "+current.name+" (id#"+current.id+") updated";
		}

		// add new version
		var v = new Version();
		v.project = p;
		v.name = infos.version;
		v.comments = infos.versionComments;
		v.downloads = 0;
		v.date = Date.now().toString();
		v.documentation = doc;
		v.insert();

		p.version = v;
		p.update();
		return "Version "+v.name+" (id#"+v.id+") added";
	}

	public function postInstall( project : String, version : String ) {
		var p = Project.manager.search({ name : project }).first();
		if( p == null )
			throw "No such Project : "+project;
		var v = Version.manager.search({ project : p.id, name : version }).first();
		if( v == null )
			throw "No such Version : "+version;
		v.downloads++;
		v.update();
		p.downloads++;
		p.update();
	}

}