/**
 * @file database.cpp
 * @brief Synor Database SDK implementation for C++
 */

#include "synor/database.hpp"
#include <stdexcept>

namespace synor {
namespace database {

// Implementation class
class SynorDatabaseImpl {
public:
    explicit SynorDatabaseImpl(const Config& config) : config_(config), closed_(false) {}

    Config config_;
    bool closed_;
};

// KeyValueStore implementation
KeyValueStore::KeyValueStore(std::shared_ptr<SynorDatabaseImpl> impl) : impl_(std::move(impl)) {}

std::future<std::optional<std::string>> KeyValueStore::get(const std::string& key) {
    return std::async(std::launch::async, [key]() -> std::optional<std::string> {
        (void)key;
        throw SynorException("Not implemented");
    });
}

std::future<void> KeyValueStore::set(const std::string& key, const std::string& value,
                                     std::optional<int32_t> ttl) {
    return std::async(std::launch::async, [key, value, ttl]() {
        (void)key;
        (void)value;
        (void)ttl;
        throw SynorException("Not implemented");
    });
}

std::future<void> KeyValueStore::remove(const std::string& key) {
    return std::async(std::launch::async, [key]() {
        (void)key;
        throw SynorException("Not implemented");
    });
}

std::future<std::vector<KeyValue>> KeyValueStore::list(const std::string& prefix) {
    return std::async(std::launch::async, [prefix]() -> std::vector<KeyValue> {
        (void)prefix;
        throw SynorException("Not implemented");
    });
}

// DocumentStore implementation
DocumentStore::DocumentStore(std::shared_ptr<SynorDatabaseImpl> impl) : impl_(std::move(impl)) {}

std::future<std::string> DocumentStore::create(const std::string& collection, const std::string& document) {
    return std::async(std::launch::async, [collection, document]() -> std::string {
        (void)collection;
        (void)document;
        throw SynorException("Not implemented");
    });
}

std::future<Document> DocumentStore::get(const std::string& collection, const std::string& id) {
    return std::async(std::launch::async, [collection, id]() -> Document {
        (void)collection;
        (void)id;
        throw SynorException("Not implemented");
    });
}

std::future<void> DocumentStore::update(const std::string& collection, const std::string& id,
                                        const std::string& update) {
    return std::async(std::launch::async, [collection, id, update]() {
        (void)collection;
        (void)id;
        (void)update;
        throw SynorException("Not implemented");
    });
}

std::future<void> DocumentStore::remove(const std::string& collection, const std::string& id) {
    return std::async(std::launch::async, [collection, id]() {
        (void)collection;
        (void)id;
        throw SynorException("Not implemented");
    });
}

std::future<std::vector<Document>> DocumentStore::query(const std::string& collection, const Query& query) {
    return std::async(std::launch::async, [collection, query]() -> std::vector<Document> {
        (void)collection;
        (void)query;
        throw SynorException("Not implemented");
    });
}

// VectorStore implementation
VectorStore::VectorStore(std::shared_ptr<SynorDatabaseImpl> impl) : impl_(std::move(impl)) {}

std::future<void> VectorStore::upsert(const std::string& collection, const std::vector<VectorEntry>& vectors) {
    return std::async(std::launch::async, [collection, vectors]() {
        (void)collection;
        (void)vectors;
        throw SynorException("Not implemented");
    });
}

std::future<std::vector<SearchResult>> VectorStore::search(const std::string& collection,
                                                            const std::vector<double>& vector, int32_t k) {
    return std::async(std::launch::async, [collection, vector, k]() -> std::vector<SearchResult> {
        (void)collection;
        (void)vector;
        (void)k;
        throw SynorException("Not implemented");
    });
}

std::future<void> VectorStore::remove(const std::string& collection, const std::vector<std::string>& ids) {
    return std::async(std::launch::async, [collection, ids]() {
        (void)collection;
        (void)ids;
        throw SynorException("Not implemented");
    });
}

// TimeSeriesStore implementation
TimeSeriesStore::TimeSeriesStore(std::shared_ptr<SynorDatabaseImpl> impl) : impl_(std::move(impl)) {}

std::future<void> TimeSeriesStore::write(const std::string& series, const std::vector<DataPoint>& points) {
    return std::async(std::launch::async, [series, points]() {
        (void)series;
        (void)points;
        throw SynorException("Not implemented");
    });
}

std::future<std::vector<DataPoint>> TimeSeriesStore::query(const std::string& series, const TimeRange& range,
                                                            std::optional<Aggregation> aggregation) {
    return std::async(std::launch::async, [series, range, aggregation]() -> std::vector<DataPoint> {
        (void)series;
        (void)range;
        (void)aggregation;
        throw SynorException("Not implemented");
    });
}

// SynorDatabase implementation
SynorDatabase::SynorDatabase(const Config& config)
    : impl_(std::make_shared<SynorDatabaseImpl>(config)),
      kv_(std::make_unique<KeyValueStore>(impl_)),
      documents_(std::make_unique<DocumentStore>(impl_)),
      vectors_(std::make_unique<VectorStore>(impl_)),
      timeseries_(std::make_unique<TimeSeriesStore>(impl_)) {}

SynorDatabase::~SynorDatabase() = default;

SynorDatabase::SynorDatabase(SynorDatabase&&) noexcept = default;
SynorDatabase& SynorDatabase::operator=(SynorDatabase&&) noexcept = default;

KeyValueStore& SynorDatabase::kv() { return *kv_; }
DocumentStore& SynorDatabase::documents() { return *documents_; }
VectorStore& SynorDatabase::vectors() { return *vectors_; }
TimeSeriesStore& SynorDatabase::timeseries() { return *timeseries_; }

void SynorDatabase::close() {
    impl_->closed_ = true;
}

bool SynorDatabase::is_closed() const {
    return impl_->closed_;
}

std::future<bool> SynorDatabase::health_check() {
    return std::async(std::launch::async, []() -> bool {
        throw SynorException("Not implemented");
    });
}

}  // namespace database
}  // namespace synor
