%%
%% Test suite for esqlite.
%%

-module(esqlite_test).

-include_lib("eunit/include/eunit.hrl").

open_single_database_test() ->
    {ok, _C1} = esqlite:open("test.db"),
    ok.

open_multiple_same_databases_test() ->
    {ok, _C1} = esqlite:open("test.db"),
    {ok, _C2} = esqlite:open("test.db"),
    ok.

open_multiple_different_databases_test() ->
    {ok, _C1} = esqlite:open("test1.db"),
    {ok, _C2} = esqlite:open("test2.db"),
    ok.

simple_query_test() ->
    {ok, Db} = esqlite:open(":memory:"),
    ok = esqlite:exec(Db, "begin;"),
    ok = esqlite:exec(Db, "create table test_table(one varchar(10), two int);"),
    ok = esqlite:exec(Db, ["insert into test_table values(", "\"hello1\"", ",", "10" ");"]),
    ok = esqlite:exec(Db, ["insert into test_table values(", "\"hello2\"", ",", "11" ");"]),
    ok = esqlite:exec(Db, ["insert into test_table values(", "\"hello3\"", ",", "12" ");"]),
    ok = esqlite:exec(Db, ["insert into test_table values(", "\"hello4\"", ",", "13" ");"]),
    ok = esqlite:exec(Db, "commit;"),
    ok = esqlite:exec(Db, "select * from test_table;"),
    ok.

prepare_test() ->
    {ok, Db} = esqlite:open(":memory:"),
    esqlite:exec(Db, "begin;"),
    esqlite:exec(Db, "create table test_table(one varchar(10), two int);"),
    {ok, Statement} = esqlite:prepare(Db, "insert into test_table values(\"one\", 2)"),
    
    '$done' = esqlite:step(Statement),
 
    {ok, St2} = esqlite:prepare(Db, "select * from test_table"),

    [ok] = exec(St2),
    ok.

exec(Statement) ->
    exec(Statement, [], 0).

exec(_Statement, _Acc, Tries) when Tries > 5 ->
    throw(too_many_tries);
exec(Statement, Acc, Tries) ->
    case esqlite:step(Statement) of
	'$done' ->
	    lists:reverse(Acc);
	'$busy' ->
	    timer:sleep(100),
	    exec(Statement, Acc, Tries + 1);
	V ->
	    exec(Statement, [V | Acc], 0)
    end.

%%    esqlite:bind(Statement, ":one", "hello"),
%%     esqlite:bind(Statement, ":two", 11),

%%     %% of
%%     esqlite:bind(Statement, ["hello", 11]),

%%     {ok, []} = esqlite:execute(Statement),

%%     esqlite:exec(Db, "commit;"),