From 357158683f27fbce2f9c54e19ef9519c3c04e2be Mon Sep 17 00:00:00 2001
From: p4ken <commit@p4ken.skr.jp>
Date: Wed, 3 Jul 2024 09:23:12 +0900
Subject: [PATCH] neo

---
 src/neo10.rs | 81 +++++++++++++++++++++++++++++++++++++++++++---------
 src/neo4.rs  |  2 ++
 2 files changed, 70 insertions(+), 13 deletions(-)

diff --git a/src/neo10.rs b/src/neo10.rs
index ce46fd3..862123a 100644
--- a/src/neo10.rs
+++ b/src/neo10.rs
@@ -1,26 +1,81 @@
 #![allow(unused)]
 
-struct Tokyo {}
-impl Tokyo {
-    fn new(degrees: LatLon) -> Self {
-        todo!()
+pub mod jgd {
+    use std::ops::{Div, Mul};
+
+    pub struct Tokyo {}
+    impl Tokyo {
+        pub fn new(degrees: LatLon) -> Self {
+            todo!()
+        }
+        pub fn to_jgd2000(&self) -> Self {
+            todo!()
+        }
+        pub fn to_jgd2011(&self) -> Self {
+            todo!()
+        }
+        pub fn degrees(&self) -> LatLon {
+            todo!()
+        }
+    }
+
+    pub mod degree {
+        /// 1度あたりの秒。
+        pub const SECOND: f64 = 3_600.;
+
+        /// 1度あたりのミリ秒。
+        pub const MILLI_SECOND: f64 = 3_600_000.;
+    }
+
+    /// 緯度と経度のペア。
+    pub struct LatLon<T = f64>(pub T, pub T);
+    impl LatLon {
+        pub fn new<T: Into<f64>>(lat: T, lon: T) -> Self {
+            todo!()
+        }
+        // pub fn from_secs<T>(lat: T, lon: T) -> Self {
+        //     todo!()
+        // }
+        // pub fn to_secs(self) -> LatLon {
+        //     todo!()
+        // }
     }
-    fn to_jgd2000(&self) -> Self {
-        todo!()
+    impl<T: Into<f64>> LatLon<T> {
+        // pub fn round(self) -> LatLon<i32> {
+        //     todo!()
+        // }
+        pub fn map<U: Into<f64>>(self, f: impl Fn(T) -> U) -> LatLon<U> {
+            todo!()
+        }
     }
-    fn to_jgd2011(&self) -> Self {
-        todo!()
+    impl Mul<f64> for LatLon {
+        type Output = LatLon;
+        fn mul(self, rhs: f64) -> Self::Output {
+            todo!()
+        }
     }
-    fn into_inner(&self) -> LatLon {
-        todo!()
+    impl Div<f64> for LatLon {
+        type Output = LatLon;
+        fn div(self, rhs: f64) -> Self::Output {
+            todo!()
+        }
     }
 }
 
-struct LatLon(f64, f64);
-
+#[cfg(test)]
 fn usage() {
+    use std::ops::Mul;
+
+    use jgd::{degree::MILLI_SECOND, LatLon, Tokyo};
+
     let LatLon(lat, lon) = Tokyo::new(LatLon(0., 0.))
         .to_jgd2000()
         .to_jgd2011()
-        .into_inner(); // 微妙〜
+        .degrees();
+
+    let LatLon(lat, lon) = Tokyo::new(LatLon::new(0, 0) / MILLI_SECOND)
+        .to_jgd2000()
+        .to_jgd2011()
+        .degrees()
+        .map(|x| (x * MILLI_SECOND).round() as i32);
 }
diff --git a/src/neo4.rs b/src/neo4.rs
index ed8f7e4..89a052e 100644
--- a/src/neo4.rs
+++ b/src/neo4.rs
@@ -30,4 +30,6 @@ pub fn usage() {
         .to_jgd2000()
         .to_jgd2011()
         .degrees();
+
+    TOKYO.ToJgd2000().ToJgd2011().transform(LatLon(0., 0.));
 }