Travel3: Simple image and video display site

Reads the images and videos from filesystem and builds a site in
memroy.

1 files changed, 137 insertions, 0 deletions

diff --git a/src/travel.hh b/src/travel.hh
new file mode 100644
index 0000000..c9cc891
--- /dev/null
+++ b/src/travel.hh
@@ -0,0 +1,137 @@
+#ifndef TRAVEL_HH
+#define TRAVEL_HH
+
+#include "date.hh"
+#include "location.hh"
+#include "rotation.hh"
+
+#include <filesystem>
+#include <functional>
+#include <memory>
+#include <string_view>
+
+class Config;
+class Logger;
+class TaskRunner;
+
+class Travel {
+public:
+  class Thumbnail {
+  public:
+    enum class ThumbType {
+      FILE,
+      EXIF,
+    };
+
+    virtual ~Thumbnail() = default;
+
+    virtual std::filesystem::path const& path() const = 0;
+
+    virtual ThumbType thumb_type() const = 0;
+
+    virtual std::string_view mime_type() const = 0;
+
+    virtual uint64_t size() const = 0;
+
+  protected:
+    Thumbnail() = default;
+  };
+
+  class Media {
+  public:
+    enum class Type {
+      IMAGE,
+      VIDEO,
+    };
+
+    virtual ~Media() = default;
+
+    virtual std::string_view id() const = 0;
+
+    virtual std::filesystem::path const& path() const = 0;
+
+    virtual Type type() const = 0;
+
+    virtual uint64_t width() const = 0;
+    virtual uint64_t height() const = 0;
+
+    virtual Location location() const = 0;
+
+    virtual Date date() const = 0;
+
+    // Only ever > 0.0 for videos
+    virtual double length() const = 0;
+
+    // Only ever != UNKNOWN for images
+    virtual Rotation rotation() const = 0;
+
+    // Returns nullptr if no thumbnail
+    virtual Thumbnail const* thumbnail() const = 0;
+
+  protected:
+    Media() = default;
+  };
+
+  class Day {
+  public:
+    virtual ~Day() = default;
+
+    // Returns 00:00:00 of the day in question.
+    virtual Date date() const = 0;
+
+    // Index in media array for first media for this day.
+    virtual size_t first() const = 0;
+
+    // Index in media array for the last media for this day.
+    // Days can't be empty, if there is just one media of the day then
+    // first() == last().
+    virtual size_t last() const = 0;
+
+  protected:
+    Day() = default;
+  };
+
+  class Trip {
+  public:
+    virtual ~Trip() = default;
+
+    virtual std::string_view id() const = 0;
+    virtual std::string_view title() const = 0;
+    virtual uint16_t year() const = 0;
+    virtual Location location() const = 0;
+    virtual uint64_t images() const = 0;
+    virtual uint64_t videos() const = 0;
+
+    virtual size_t media_count() const = 0;
+    virtual Media const& media(size_t i) const = 0;
+
+    virtual size_t day_count() const = 0;
+    virtual Day const& day(size_t i) const = 0;
+
+  protected:
+    Trip() = default;
+  };
+
+  virtual ~Travel() = default;
+
+  static std::unique_ptr<Travel> create(std::shared_ptr<Logger> logger,
+                                        std::shared_ptr<TaskRunner> runner);
+
+  virtual bool setup(Logger* logger, Config* config) = 0;
+
+  virtual void start() = 0;
+
+  virtual void reload() = 0;
+
+  virtual void call_when_loaded(std::function<void()> callback) = 0;
+
+  virtual size_t trips() const = 0;
+  virtual Trip const& trip(size_t i) const = 0;
+
+protected:
+  Travel() = default;
+  Travel(Travel const&) = delete;
+  Travel& operator=(Travel const&) = delete;
+};
+
+#endif  // TRAVEL_HH