#!/usr/bin/env tclsh

set testdir [file dirname $argv0]
source $testdir/tester.tcl

do_execsql_test_on_specific_db ":memory:" pragma-cache-size-default {
  PRAGMA cache_size
} {-2000}

do_execsql_test pragma-set-cache-size {
  PRAGMA cache_size = 100;
  PRAGMA cache_size
} {100}

# Even though the cache size was set to 100 in previous test, a new connection defaults back to -2000.
do_execsql_test pragma-cache-size {
  PRAGMA cache_size
} {-2000}

do_execsql_test pragma-function-cache-size {
  SELECT * FROM pragma_cache_size()
} {-2000}

do_execsql_test pragma-update-journal-mode-wal {
  PRAGMA journal_mode=WAL
} {wal}

do_execsql_test pragma-function-update-journal-mode {
  SELECT * FROM pragma_journal_mode()
} {wal}

do_execsql_test pragma-table-info-equal-syntax {
  PRAGMA table_info=sqlite_schema
} {0|type|TEXT|0||0
1|name|TEXT|0||0
2|tbl_name|TEXT|0||0
3|rootpage|INT|0||0
4|sql|TEXT|0||0
}

do_execsql_test pragma-table-info-call-syntax {
  PRAGMA table_info(sqlite_schema)
} {0|type|TEXT|0||0
1|name|TEXT|0||0
2|tbl_name|TEXT|0||0
3|rootpage|INT|0||0
4|sql|TEXT|0||0
}

do_execsql_test pragma-table-info-alt-name-equal-syntax {
  PRAGMA table_info=sqlite_master
} {0|type|TEXT|0||0
1|name|TEXT|0||0
2|tbl_name|TEXT|0||0
3|rootpage|INT|0||0
4|sql|TEXT|0||0
}

do_execsql_test pragma-table-info-alt-name-call-syntax {
  PRAGMA table_info(sqlite_master)
} {0|type|TEXT|0||0
1|name|TEXT|0||0
2|tbl_name|TEXT|0||0
3|rootpage|INT|0||0
4|sql|TEXT|0||0
}

do_execsql_test pragma-function-table-info-alt-name {
  SELECT * FROM pragma_table_info('sqlite_master')
} {0|type|TEXT|0||0
1|name|TEXT|0||0
2|tbl_name|TEXT|0||0
3|rootpage|INT|0||0
4|sql|TEXT|0||0
}

do_execsql_test pragma-function-table-info {
  SELECT * FROM pragma_table_info('sqlite_schema')
} {0|type|TEXT|0||0
1|name|TEXT|0||0
2|tbl_name|TEXT|0||0
3|rootpage|INT|0||0
4|sql|TEXT|0||0
}

do_execsql_test pragma-table-info-invalid-table {
  PRAGMA table_info=pekka
} {}

do_execsql_test pragma-function-table-info-invalid-table {
  SELECT * FROM pragma_table_info('pekka')
} {}

# temporarily skip this test case. The issue is detailed in #1407
#do_execsql_test_on_specific_db ":memory:" pragma-page-count-empty {
#  PRAGMA page_count
#} {0}

do_execsql_test_on_specific_db ":memory:" pragma-page-count-table {
  CREATE TABLE foo(bar);
  PRAGMA page_count
} {2}

do_execsql_test_on_specific_db "testing/testing_user_version_10.db" pragma-user-version-user-set {
  PRAGMA user_version
} {10}

do_execsql_test_on_specific_db ":memory:" pragma-user-version-default {
  PRAGMA user_version
} {0}

do_execsql_test_on_specific_db ":memory:" pragma-user-version-update {
  PRAGMA user_version = 42;
  PRAGMA user_version;
} {42}

do_execsql_test_on_specific_db ":memory:" pragma-user-version-negative-value {
  PRAGMA user_version = -10;
  PRAGMA user_version;
} {-10}

do_execsql_test_on_specific_db ":memory:" pragma-user-version-float-value {
  PRAGMA user_version = 10.9;
  PRAGMA user_version;
} {10}

do_execsql_test pragma-legacy-file-format {
  PRAGMA legacy_file_format
} {}

do_execsql_test_error_content pragma-function-legacy-file-format {
  SELECT * FROM pragma_legacy_file_format()
} {"No such table"}

do_execsql_test_error_content pragma-function-too-many-arguments {
  SELECT * FROM pragma_table_info('sqlite_schema', 'main', 'arg3')
} {"Too many arguments"}

do_execsql_test_error_content pragma-function-update {
  SELECT * FROM pragma_wal_checkpoint()
} {"No such table"}

do_execsql_test pragma-function-nontext-argument {
  SELECT * FROM pragma_table_info('sqlite_schema', NULL);
} {0|type|TEXT|0||0
1|name|TEXT|0||0
2|tbl_name|TEXT|0||0
3|rootpage|INT|0||0
4|sql|TEXT|0||0
}

do_execsql_test pragma-function-no-arguments {
  SELECT * FROM pragma_table_info();
} {}

do_execsql_test_on_specific_db ":memory:" pragma-function-argument-with-space {
  CREATE TABLE "foo bar"(c0);
  SELECT * FROM pragma_table_info('foo bar')
} {0|c0||0||0}

# If the argument passed to the first function call were simply concatenated with the underlying PRAGMA statement,
# we would end up with: PRAGMA table_info='sqlite_schema';CREATE TABLE foo(c0);SELECT 'bar'. Depending on how many
# statements are executed at once, at least one of the following would run:
# - PRAGMA table_info='sqlite_schema';
# - CREATE TABLE foo(c0);
# - SELECT 'bar';
# No output means that none of them were executed.
do_execsql_test pragma-function-sql-injection {
  SELECT * FROM pragma_table_info('sqlite_schema'';CREATE TABLE foo(c0);SELECT ''bar');
  SELECT * FROM pragma_table_info('foo');
} {}