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#include "common.hh"
#include "db.hh"
#include "event.hh"
namespace stuff {
namespace {
const std::string kEventTable = "events";
const std::string kEventGoingTable = "events_going";
class EventImpl : public Event {
public:
~EventImpl() override {
}
int64_t id() const override {
return id_;
}
const std::string& name() const override {
return name_;
}
void set_name(const std::string& name) override {
if (name_ == name) return;
edit();
editor_->set("name", name);
name_ = name;
}
const std::string& text() const override {
return text_;
}
void set_text(const std::string& text) override {
if (text_ == text) return;
edit();
editor_->set("text", text);
text_ = text;
}
time_t start() const override {
return start_;
}
void set_start(time_t start) override {
if (start_ == start) return;
edit();
editor_->set("start", static_cast<int64_t>(start));
start_ = start;
}
void going(std::vector<Going>* going) const override {
going->assign(going_.begin(), going_.end());
}
bool is_going(const std::string& name) const override {
for (const auto& going : going_) {
if (going.name == name) {
return going.is_going;
}
}
return false;
}
void update_going(const std::string& name, bool is_going,
const std::string& note) override {
for (auto it = going_.begin(); it != going_.end(); ++it) {
if (it->name == name) {
if (it->is_going == is_going && it->note == note) {
return;
}
going_.erase(it);
break;
}
}
std::vector<Going>::iterator it;
if (is_going) {
for (it = going_.begin(); it != going_.end(); ++it) {
if (!it->is_going) {
break;
}
}
} else {
it = going_.end();
}
going_.emplace(it, name, is_going, note, time(NULL));
going_uptodate_ = false;
}
bool store() override {
if (editor_) {
DB::Transaction transaction(db_);
if (!editor_->commit()) return false;
if (new_) {
id_ = editor_->last_insert_rowid();
}
if (store_going() && transaction.commit()) {
new_ = false;
editor_.reset();
return true;
} else {
if (new_) id_ = 0;
return false;
}
} else {
if (new_) return false;
return store_going();
}
}
bool remove() override {
if (new_) return true;
DB::Transaction transaction(db_);
if (db_->remove(kEventTable,
DB::Condition("id", DB::Condition::EQUAL, id_)) < 0 ||
db_->remove(kEventGoingTable,
DB::Condition("event", DB::Condition::EQUAL, id_)) < 0)
return false;
if (transaction.commit()) {
new_ = true;
id_ = 0;
return true;
}
return false;
}
bool load(DB::Snapshot* snapshot) {
editor_.reset();
new_ = false;
if (snapshot->bad()) return false;
if (!snapshot->get(0, &id_)) return false;
if (!snapshot->get(1, &name_)) return false;
int64_t tmp;
if (!snapshot->get(2, &tmp)) return false;
start_ = tmp;
if (!snapshot->get(3, &text_)) {
text_ = "";
}
return load_going();
}
EventImpl(std::shared_ptr<DB> db)
: db_(db), id_(0), new_(true), going_uptodate_(true) {
}
private:
void edit() {
if (editor_) return;
if (new_) {
editor_ = db_->insert(kEventTable);
} else {
editor_ = db_->update(kEventTable,
DB::Condition("id",
DB::Condition::EQUAL,
DB::Value(id_)));
}
}
bool store_going() {
if (going_uptodate_) return true;
DB::Transaction transaction(db_);
if (db_->remove(kEventGoingTable,
DB::Condition("event", DB::Condition::EQUAL, id_)) < 0)
return false;
for (const auto& going : going_) {
auto editor = db_->insert(kEventGoingTable);
editor->set("event", id_);
editor->set("name", going.name);
editor->set("is_going", going.is_going);
editor->set("note", going.note);
editor->set("added", static_cast<int64_t>(going.added));
if (!editor->commit()) {
return false;
}
}
if (transaction.commit()) {
going_uptodate_ = true;
return true;
}
return false;
}
bool load_going() {
going_.clear();
going_uptodate_ = true;
std::vector<DB::OrderBy> order_by;
order_by.push_back(DB::OrderBy("is_going", false));
order_by.push_back(DB::OrderBy("added"));
order_by.push_back(DB::OrderBy("name"));
auto snapshot = db_->select(kEventGoingTable,
DB::Condition("event",
DB::Condition::EQUAL,
id_),
order_by);
if (!snapshot) return true;
do {
std::string name;
bool is_going;
std::string note;
int64_t added;
if (!snapshot->get(0, &name) || !snapshot->get(1, &is_going) ||
!snapshot->get(3, &added))
return false;
if (!snapshot->get(2, ¬e))
note = "";
going_.emplace_back(name, is_going, note,
static_cast<time_t>(added));
} while (snapshot->next());
return !snapshot->bad();
}
std::shared_ptr<DB> db_;
std::shared_ptr<DB::Editor> editor_;
int64_t id_;
std::string name_;
std::string text_;
time_t start_;
bool new_;
bool going_uptodate_;
std::vector<Going> going_;
};
std::shared_ptr<DB::Snapshot> open(std::shared_ptr<DB> db) {
std::vector<DB::OrderBy> order_by;
order_by.push_back(DB::OrderBy("start"));
order_by.push_back(DB::OrderBy("name"));
return db->select(kEventTable, DB::Condition(), order_by);
}
} // namespace
// static
bool Event::setup(DB* db) {
DB::Declaration decl;
decl.push_back(std::make_pair("id", DB::PrimaryKey(DB::Type::INT64)));
decl.push_back(std::make_pair("name", DB::NotNull(DB::Type::STRING)));
decl.push_back(std::make_pair("start", DB::NotNull(DB::Type::INT64)));
decl.push_back(std::make_pair("text", DB::Type::STRING));
if (!db->insert_table(kEventTable, decl)) return false;
decl.clear();
decl.push_back(std::make_pair("event", DB::NotNull(DB::Type::INT64)));
decl.push_back(std::make_pair("name", DB::NotNull(DB::Type::STRING)));
decl.push_back(std::make_pair("is_going", DB::NotNull(DB::Type::BOOL)));
decl.push_back(std::make_pair("note", DB::Type::STRING));
decl.push_back(std::make_pair("added", DB::NotNull(DB::Type::INT64)));
return db->insert_table(kEventGoingTable, decl);
}
// static
std::unique_ptr<Event> Event::next(std::shared_ptr<DB> db) {
auto snapshot = open(db);
if (snapshot) {
do {
auto ev = new EventImpl(db);
if (ev->load(snapshot.get())) {
return std::unique_ptr<Event>(ev);
}
delete ev;
} while (snapshot->next());
}
return nullptr;
}
// static
std::vector<std::unique_ptr<Event>> Event::all(std::shared_ptr<DB> db) {
auto snapshot = open(db);
std::vector<std::unique_ptr<Event>> ret;
if (snapshot) {
do {
auto ev = new EventImpl(db);
if (ev->load(snapshot.get())) {
ret.emplace_back(ev);
} else {
delete ev;
}
} while (snapshot->next());
}
return ret;
}
// static
std::unique_ptr<Event> Event::create(std::shared_ptr<DB> db,
const std::string& name, time_t start) {
std::unique_ptr<Event> ev(new EventImpl(db));
ev->set_name(name);
ev->set_start(start);
return ev;
}
} // namespace stuff
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