feat: located group from RawCode

src/core/group/group.h

@@ -196,7 +196,10 @@ public:
     [[nodiscard]] constexpr GroupPro to_vertical_mirror() const;
     [[nodiscard]] constexpr GroupPro to_horizontal_mirror() const;
 
-    RangesUnion cases() const;
+    [[nodiscard]] RangesUnion cases() const;
+
+    static GroupPro from_raw_code(codec::RawCode raw_code);
+    static GroupPro from_common_code(codec::CommonCode common_code);
 
 private:
     uint32_t type_id_;

src/core/group/internal/group_pro.cc

@@ -2,13 +2,14 @@
 
 #include "group/group.h"
 
-using klotski::cases::GroupPro;
-
+using klotski::codec::RawCode;
 using klotski::codec::CommonCode;
 
+using klotski::cases::GroupPro;
 using klotski::cases::RangesUnion;
 
 using klotski::cases::GROUP_PRO_SEED;
+using klotski::cases::GROUP_SEED_MAP;
 
 RangesUnion GroupPro::cases() const {
     auto seed = CommonCode::unsafe_create(GROUP_PRO_SEED[flat_id()]);
@@ -36,3 +37,30 @@ RangesUnion GroupPro::cases() const {
     }
     return data;
 }
+
+static std::unordered_map<uint64_t, GroupPro> build_map_data() {
+    // NOTE: using CommonCode as map key
+    std::unordered_map<uint64_t, GroupPro> data;
+    data.reserve(GROUP_SEED_MAP.size());
+    for (auto raw : GROUP_SEED_MAP) {
+        uint32_t type_id = (raw >> 48) & 0b11111111;
+        uint32_t pattern_id = (raw >> 38) & 0b1111111111;
+        uint32_t toward = (raw >> 36) & 0b11;
+        auto seed = CommonCode::unsafe_create(raw & (uint64_t)0xFFFFFFFFF).unwrap();
+        auto group = GroupPro::unsafe_create(type_id, pattern_id, toward);
+        data.emplace(seed, group);
+    }
+    return data;
+}
+
+GroupPro GroupPro::from_raw_code(codec::RawCode raw_code) {
+    static auto map_data = build_map_data();
+
+    auto raw_codes = Group::extend(raw_code);
+    auto common_codes = raw_codes | std::views::transform([](const RawCode r) {
+        return r.to_common_code();
+    }) | std::ranges::to<std::vector>(); // TODO: search min_element directly
+    auto seed = std::min_element(common_codes.begin(), common_codes.end());
+
+    return map_data.at(seed->unwrap());
+}

src/core/group/internal/group_pro.inl

@@ -12,6 +12,10 @@ constexpr uint32_t GroupPro::size() const {
     return GROUP_PRO_SIZE[flat_id()];
 }
 
+inline GroupPro GroupPro::from_common_code(codec::CommonCode common_code) {
+    return from_raw_code(common_code.to_raw_code());
+}
+
 constexpr GroupPro::MirrorType GroupPro::mirror_type() const {
     switch (GROUP_PRO_TYPE[flat_id()]) {
         case 0:

src/core/main.cc

@@ -78,6 +78,11 @@ int main() {
     auto g2 = g.to_horizontal_mirror();
     std::cout << std::format("{}-{}-{}\n", g2.type_id(), g2.pattern_id(), g2.mirror_toward());
 
+//    auto common_code = CommonCode::unsafe_create(0x1A9BF0C00);
+    auto common_code = CommonCode::unsafe_create(0x4FEA13400);
+    auto kk = GroupPro::from_common_code(common_code);
+    std::cout << std::format("{}-{}-{}\n", kk.type_id(), kk.pattern_id(), kk.mirror_toward());
+
 //    auto gp = GroupPro::unsafe_create(169, 0, 0);
 //    std::cout << gp.size() << std::endl;
 //    std::cout << (int)gp.mirror_type() << std::endl;