# 2023 October 02
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements that the sessions module interacts well with
# the ALTER TABLE ADD COLUMN command.
#

if {![info exists testdir]} {
  set testdir [file join [file dirname [info script]] .. .. test]
} 
source [file join [file dirname [info script]] session_common.tcl]
source $testdir/tester.tcl

ifcapable !session {finish_test; return}
set testprefix sessionalter


forcedelete test.db2
sqlite3 db2 test.db2

do_execsql_test 1.0 {
  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
}

do_execsql_test -db db2 1.1 {
  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c DEFAULT 1234);
}

do_then_apply_sql {
  INSERT INTO t1 VALUES(1, 'one');
  INSERT INTO t1 VALUES(2, 'two');
}

do_execsql_test -db db2 1.2 {
  SELECT * FROM t1
} {
  1 one 1234
  2 two 1234
}

do_then_apply_sql {
  UPDATE t1 SET b='four' WHERE a=2;
}

do_execsql_test -db db2 1.3 {
  SELECT * FROM t1
} {
  1 one 1234
  2 four 1234
}

do_then_apply_sql {
  DELETE FROM t1 WHERE a=1;
}

do_execsql_test -db db2 1.4 {
  SELECT * FROM t1
} {
  2 four 1234
}

db2 close

#--------------------------------------------------------------------------
reset_db

do_execsql_test 2.0 {
  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
}

do_test 2.1 {
  sqlite3session S db main
  S attach t1
  set {} {}
} {} 
do_execsql_test 2.2 {
  INSERT INTO t1 VALUES(1, 2);
  ALTER TABLE t1 ADD COLUMN c DEFAULT 'abcd';
  INSERT INTO t1 VALUES(2, 3, 4);
}
do_changeset_test 2.3 S {
  {INSERT t1 0 X.. {} {i 1 i 2 t abcd}} 
  {INSERT t1 0 X.. {} {i 2 i 3 i 4}}
}

do_iterator_test 2.4 {} {
  DELETE FROM t1 WHERE a=2;
  ALTER TABLE t1 ADD COLUMN d DEFAULT 'abcd';
  ALTER TABLE t1 ADD COLUMN e DEFAULT 5;
  ALTER TABLE t1 ADD COLUMN f DEFAULT 7.2;
  -- INSERT INTO t1 VALUES(9, 9, 9, 9);
} {
  {DELETE t1 0 X..... {i 2 i 3 i 4 t abcd i 5 f 7.2} {}}
}

#-------------------------------------------------------------------------
# Tests of the sqlite3changegroup_xxx() APIs.
#
reset_db
do_execsql_test 3.0 {
  CREATE TABLE t1(x INTEGER PRIMARY KEY, y);
  CREATE TABLE t2(x PRIMARY KEY, y);
  CREATE TABLE t3(x, y);
  CREATE TABLE t4(y PRIMARY KEY, x) WITHOUT ROWID;

  INSERT INTO t1 VALUES(1, 2), (3, 4), (5, 6);
  INSERT INTO t2 VALUES('one', 'two'), ('three', 'four'), ('five', 'six');
  INSERT INTO t3 VALUES(1, 2), (3, 4), (5, 6);

  INSERT INTO t4(x, y) VALUES(1, 2), (3, 4), (5, 6);
}

db_save_and_close
foreach {tn sql1 at sql2} {
  1 {
    INSERT INTO t1(x, y) VALUES(7, 8);
  } {
    ALTER TABLE t1 ADD COLUMN z DEFAULT 10;
  } {
    UPDATE t1 SET y=11 WHERE x=7;
  }

  2 {
    UPDATE t2 SET y='two.two' WHERE x='one';
    DELETE FROM t2 WHERE x='five';
    INSERT INTO t2(x, y) VALUES('seven', 'eight');
  } {
    ALTER TABLE t2 ADD COLUMN z;
    ALTER TABLE t2 ADD COLUMN zz;
  } {
  }

  3 {
    DELETE FROM t2 WHERE x='five';
  } {
    ALTER TABLE t2 ADD COLUMN z DEFAULT 'xyz';
  } {
  }

  4 {
    UPDATE t2 SET y='two.two' WHERE x='three';
  } {
    ALTER TABLE t2 ADD COLUMN z;
  } {
    UPDATE t2 SET z='abc' WHERE x='one';
  }

  5* {
    UPDATE t2 SET y='two.two' WHERE x='three';
  } {
    ALTER TABLE t2 ADD COLUMN z DEFAULT 'defu1';
  } {
  }

  6* {
    INSERT INTO t2(x, y) VALUES('nine', 'ten');
  } {
    ALTER TABLE t2 ADD COLUMN z;
    ALTER TABLE t2 ADD COLUMN a DEFAULT 'eelve';
    ALTER TABLE t2 ADD COLUMN b DEFAULT x'1234abcd';
    ALTER TABLE t2 ADD COLUMN c DEFAULT 4.2;
    ALTER TABLE t2 ADD COLUMN d DEFAULT NULL;
  } {
  }

  7 {
    INSERT INTO t3(x, y) VALUES(7, 8);
    UPDATE t3 SET y='fourteen' WHERE x=1;
    DELETE FROM t3 WHERE x=3;
  } {
    ALTER TABLE t3 ADD COLUMN c;
  } {
    INSERT INTO t3(x, y, c) VALUES(9, 10, 11);
  }

  8 {
    INSERT INTO t4(x, y) VALUES(7, 8);
    UPDATE t4 SET y='fourteen' WHERE x=1;
    DELETE FROM t4 WHERE x=3;
  } {
    ALTER TABLE t4 ADD COLUMN c;
  } {
    INSERT INTO t4(x, y, c) VALUES(9, 10, 11);
  }
} {
  foreach {tn2 cmd} {
    1 changeset_from_sql
    2 patchset_from_sql
  } {
    db_restore_and_reopen
  
    set C1 [$cmd $sql1]
    execsql $at
    set C2 [$cmd $sql2]
  
    sqlite3changegroup grp
    grp schema db main
    grp add $C1
    grp add $C2
    set T1 [grp output]
    grp delete
  
    db_restore_and_reopen
    execsql $at
    set T2 [$cmd "$sql1 ; $sql2"]
  
    if {[string range $tn end end]!="*"} {
      do_test 3.1.$tn.$tn2.1 { changeset_to_list $T1 } [changeset_to_list $T2]
      set testname "$tn.$tn2"
    } else {
      set testname "[string range $tn 0 end-1].$tn2"
    }
  
    db_restore_and_reopen
    proc xConflict {args} { return "REPLACE" }
    sqlite3changeset_apply_v2 db $T1 xConflict
    set S1 [scksum db main]
  
    db_restore_and_reopen
    sqlite3changeset_apply_v2 db $T2 xConflict
    set S2 [scksum db main]
  
    # if { $tn==7 } { puts [changeset_to_list $T1] }
  
    do_test 3.1.$tn.2 { set S1 } $S2
  }
}


finish_test