From 6232d13f5321b87ddf12a1aa36b4545da45f173d Mon Sep 17 00:00:00 2001
From: Joel Klinghed <the_jk@spawned.biz>
Date: Wed, 17 Nov 2021 22:34:57 +0100
Subject: Travel3: Simple image and video display site

Reads the images and videos from filesystem and builds a site in
memroy.
---
 src/timezone.cc | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 src/timezone.cc

(limited to 'src/timezone.cc')

diff --git a/src/timezone.cc b/src/timezone.cc
new file mode 100644
index 0000000..ca0f501
--- /dev/null
+++ b/src/timezone.cc
@@ -0,0 +1,38 @@
+#include "common.hh"
+
+#include "geo_json.hh"
+#include "timezone.hh"
+#include "tz_info.hh"
+
+namespace {
+
+class TimezoneImpl : public Timezone {
+public:
+  TimezoneImpl(std::shared_ptr<Logger> logger,
+               std::filesystem::path geojsondb,
+               std::filesystem::path tzinfo_dir)
+    : geojson_(GeoJson::create(logger, std::move(geojsondb))),
+      tzinfo_(TzInfo::create(logger, std::move(tzinfo_dir))) {
+  }
+
+  std::optional<time_t> get_local_time(double lat, double lng,
+                                       time_t utc_time) const override {
+    auto tzid = geojson_->get_data(lat, lng, "tzid");
+    if (tzid.has_value())
+      return tzinfo_->get_local_time(tzid.value(), utc_time);
+    return std::nullopt;
+  }
+
+private:
+  std::unique_ptr<GeoJson> geojson_;
+  std::unique_ptr<TzInfo> tzinfo_;
+};
+
+}  // namespace
+
+std::unique_ptr<Timezone> Timezone::create(std::shared_ptr<Logger> logger,
+                                           std::filesystem::path geojsondb,
+                                           std::filesystem::path tzinfo_dir) {
+  return std::make_unique<TimezoneImpl>(std::move(logger), std::move(geojsondb),
+                                        std::move(tzinfo_dir));
+}
-- 
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