<?php

/**
 * Tests for requesting revisioninfo of a revision of a page with getRevisionInfo()
 *
 * This class uses the files:
 * - data/pages/mailinglist.txt
 * - data/meta/mailinglist.changes
 */
class changelog_getrelativerevision_test extends DokuWikiTest {

    private $logline = "1362525899	127.0.0.1	E	mailinglist	pubcie	[Data entry] 	\n";
    private $pageid = 'mailinglist';

    function setup() {
        parent::setup();
        global $cache_revinfo;
        $cache =& $cache_revinfo;
        if(isset($cache['nonexist'])) {
            unset($cache['nonexist']);
        }
        if(isset($cache['mailinglist'])) {
            unset($cache['mailinglist']);
        }
    }

    /**
     * no nonexist.changes meta file available
     */
    function test_changemetadatanotexists() {
        $rev          = 1362525899;
        $dir          = 1;
        $id           = 'nonexist';
        $revsexpected = false;

        $pagelog = new PageRevisionLog($id, $chunk_size = 8192);
        $revs = $pagelog->getRelativeRevision($rev, $dir, $media = false);
        $this->assertEquals($revsexpected, $revs);
    }

    /**
     * no nonexist.changes meta file available
     */
    function test_nodirection() {
        $rev          = 1362525899;
        $dir          = 0;
        $revsexpected = false;

        $pagelog = new PageRevisionLog($this->pageid, $chunk_size = 8192);
        $revs = $pagelog->getRelativeRevision($rev, $dir, $media = false);
        $this->assertEquals($revsexpected, $revs);
    }

    /**
     * start at exact current revision of mailinglist page
     *
     */
    function test_startatexactcurrentrev() {
        $rev          = 1374261194;
        $dir          = 1;
        $revsexpected = false;

//        global $INFO;
//        $INFO = pageinfo();
//        var_dump($INFO);
//        var_dump($INFO['meta']);
//        var_dump($INFO['meta']['last_change']);
//        var_dump($INFO['meta']['last_change']['date']);

        $pagelog = new PageRevisionLog($this->pageid, $chunk_size = 8192);
        $revs = $pagelog->getRelativeRevision($rev, $dir, $media = false);
        $this->assertEquals($revsexpected, $revs);
    }

    /**
     * request existing rev
     */
    function test_requestrev() {
        $rev          = 1362525359;
        $dir          = 1;
        $revexpected  = 1362525899;
        $infoexpected = parseChangelogLine($this->logline);

        $pagelog = new PageRevisionLog($this->pageid, $chunk_size = 8192);
        $revfound = $pagelog->getRelativeRevision($rev, $dir, $media = false);
        $this->assertEquals($revexpected, $revfound);
        //checked info returned from cache
        $info = $pagelog->getRevisionInfo($revfound, $media = false);
        $this->assertEquals($infoexpected, $info);
    }

    /**
     * request existing rev with chucked reading
     */
    function test_requestnextrev_chuncked() {
        $rev         = 1362525899;
        $dir         = 1;
        $revexpected = 1362525926;

        $pagelog = new PageRevisionLog($this->pageid, $chunk_size = 512);
        $revfound = $pagelog->getRelativeRevision($rev, $dir, $media = false);
        $this->assertEquals($revexpected, $revfound);
    }

    /**
     * request existing rev
     */
    function test_requestnextfifthrev() {
        $rev          = 1362525899;
        $dir          = 5;
        $revexpected  = 1362526767;

        $pagelog = new PageRevisionLog($this->pageid, $chunk_size = 8192);
        $revfound = $pagelog->getRelativeRevision($rev, $dir, $media = false);
        $this->assertEquals($revexpected, $revfound);
    }

    /**
     * request existing rev with chucked reading
     */
    function test_requestnextfifthrev_chuncked() {
        $rev         = 1362525899;
        $dir         = 5;
        $revexpected = 1362526767;

        $pagelog = new PageRevisionLog($this->pageid, $chunk_size = 512);
        $revfound = $pagelog->getRelativeRevision($rev, $dir, $media = false);
        $this->assertEquals($revexpected, $revfound);
    }

    /**
     * request existing rev
     */
    function test_requestprevrev() {
        $rev          = 1362525899;
        $dir1          = -1;
        $dir5          = -5;
        $revexpected1  = 1362525359;
        $revexpected5  = 1360110636;

        $pagelog = new PageRevisionLog($this->pageid, $chunk_size = 8192);
        $revfound1 = $pagelog->getRelativeRevision($rev, $dir1, $media = false);
        $this->assertEquals($revexpected1, $revfound1);

        $revfound5 = $pagelog->getRelativeRevision($rev, $dir5, $media = false);
        $this->assertEquals($revexpected5, $revfound5);
    }

    /**
     * request existing rev with chucked reading
     */
    function test_requestprevrev_chuncked() {
        $rev          = 1362525899;
        $dir1          = -1;
        $dir5          = -5;
        $revexpected1  = 1362525359;
        $revexpected5  = 1360110636;

        $pagelog = new PageRevisionLog($this->pageid, $chunk_size = 512);
        $revfound1 = $pagelog->getRelativeRevision($rev, $dir1, $media = false);
        $this->assertEquals($revexpected1, $revfound1);

        $revfound5 = $pagelog->getRelativeRevision($rev, $dir5, $media = false);
        $this->assertEquals($revexpected5, $revfound5);
    }

    /**
     * request after recentest version in changelog
     */
    function test_requestrecentestlogline_next() {
        $rev          = 1374261194;
        $dir          = 1;
        $revexpected  = false;

        $pagelog = new PageRevisionLog($this->pageid, $chunk_size = 8192);
        $revfound = $pagelog->getRelativeRevision($rev, $dir, $media = false);
        $this->assertEquals($revexpected, $revfound);
    }

    /**
     * request after recentest version in changelog, with chuncked reading
     */
    function test_requestrecentestlogline_next_chuncked() {
        $rev          = 1374261194;
        $dir          = 1;
        $revexpected  = false;

        $pagelog = new PageRevisionLog($this->pageid, $chunk_size = 512);
        $revfound = $pagelog->getRelativeRevision($rev, $dir, $media = false);
        $this->assertEquals($revexpected, $revfound);
    }


    /**
     * request before current version
     */
    function test_requestrecentestlogline_prev() {
        $rev          = 1374261194;
        $dir          = -1;
        $revexpected  = 1371579614;

        $pagelog = new PageRevisionLog($this->pageid, $chunk_size = 8192);
        $revfound = $pagelog->getRelativeRevision($rev, $dir, $media = false);
        $this->assertEquals($revexpected, $revfound);
    }

    /**
     * request before current version, with chuncked reading
     */
    function test_requestrecentestlogline_prev_chuncked() {
        $rev          = 1374261194;
        $dir          = -1;
        $revexpected  = 1371579614;

        $pagelog = new PageRevisionLog($this->pageid, $chunk_size = 512);
        $revfound = $pagelog->getRelativeRevision($rev, $dir, $media = false);
        $this->assertEquals($revexpected, $revfound);
    }

    /**
     * Request negative revision
     * looks in positive direction, so it catches the oldest revision
     */
    function test_negativerev_posdir() {
        $rev = -10;
        $dir = 1;
        $revexpected = 1360110636;

        $pagelog = new PageRevisionLog($this->pageid, $chunk_size = 8192);
        $revfound = $pagelog->getRelativeRevision($rev, $dir, $media = false);
        $this->assertEquals($revexpected, $revfound);
    }

    /**
     * Request negative revision
     * looks in negative direction, but there is nothing
     */
    function test_negativerev_negdir() {
        $rev = -10;
        $dir = -1;
        $revexpected = false;

        $pagelog = new PageRevisionLog($this->pageid, $chunk_size = 8192);
        $revfound = $pagelog->getRelativeRevision($rev, $dir, $media = false);
        $this->assertEquals($revexpected, $revfound);
    }

    /**
     * Start at non existing revision somewhere between existing revisions
     */
    function test_startatnotexistingrev_next() {
        $rev = 1362525890;
        $dir = 1;
        $revexpected = 1362525899;

        $pagelog = new PageRevisionLog($this->pageid, $chunk_size = 8192);
        $revfound = $pagelog->getRelativeRevision($rev, $dir, $media = false);
        $this->assertEquals($revexpected, $revfound);
    }

    /**
     * Start at non existing revision somewhere between existing revisions
     */
    function test_startatnotexistingrev_prev() {
        $rev = 1362525890;
        $dir = -1;
        $revexpected = 1362525359;

        $pagelog = new PageRevisionLog($this->pageid, $chunk_size = 8192);
        $revfound = $pagelog->getRelativeRevision($rev, $dir, $media = false);
        $this->assertEquals($revexpected, $revfound);
    }
}