initial rights v4 concept

common/mhfcourse/mhfcourse.go

@@ -0,0 +1,99 @@
+package mhfcourse
+
+import (
+	"golang.org/x/exp/slices"
+	"math"
+	"time"
+)
+
+type Course struct {
+	ID     uint16
+	Expiry time.Time
+}
+
+func (c Course) Aliases() []string {
+	aliases := make(map[uint16][]string)
+	aliases[1] = []string{"Trial", "TL"}
+	aliases[2] = []string{"HunterLife", "HL"}
+	aliases[3] = []string{"Extra", "ExtraA", "EX"}
+	aliases[4] = []string{"ExtraB"}
+	aliases[5] = []string{"Mobile"}
+	aliases[6] = []string{"Premium"}
+	aliases[7] = []string{"Pallone", "ExtraC"}
+	aliases[8] = []string{"Assist", "***ist", "Legend", "Rasta"}
+	aliases[9] = []string{"N"}
+	aliases[10] = []string{"Hiden", "Secret"}
+	aliases[11] = []string{"HunterSupport", "HunterAid", "Support", "Aid", "Royal"}
+	aliases[12] = []string{"NBoost", "NetCafeBoost", "Boost"}
+	aliases[20] = []string{"DEBUG"}
+	aliases[21] = []string{"COG_LINK_EXPIRED"}
+	aliases[22] = []string{"360_GOLD"}
+	aliases[23] = []string{"PS3_TROP"}
+	aliases[24] = []string{"COG"}
+	aliases[25] = []string{"CAFE_SP"}
+	aliases[26] = []string{"NetCafe", "Cafe", "OfficialCafe", "Official"}
+	aliases[27] = []string{"HLRenewing", "HLR", "HLRenewal", "HLRenew", "CardHL"}
+	aliases[28] = []string{"EXRenewing", "EXR", "EXRenewal", "EXRenew", "CardEX"}
+	aliases[29] = []string{"Free"}
+	return aliases[c.ID]
+}
+
+func Courses() []Course {
+	courses := make([]Course, 32)
+	for i := range courses {
+		courses[i].ID = uint16(i)
+		courses[i].Expiry = time.Time{}
+	}
+	return courses
+}
+
+func (c Course) Value() uint32 {
+	return uint32(math.Pow(2, float64(c.ID)))
+}
+
+// CourseExists returns true if the named course exists in the given slice
+func CourseExists(ID uint16, c []Course) bool {
+	for _, course := range c {
+		if course.ID == ID {
+			return true
+		}
+	}
+	return false
+}
+
+// GetCourseStruct returns a slice of Course(s) from a rights integer
+func GetCourseStruct(rights uint32) ([]Course, uint32) {
+	resp := []Course{{ID: 1, Expiry: time.Time{}}}
+	s := Courses()
+	slices.SortStableFunc(s, func(i, j Course) bool {
+		return i.ID > j.ID
+	})
+	var normalCafeCourseSet, netcafeCourseSet bool
+	for _, course := range s {
+		if rights-course.Value() < 0x80000000 {
+			switch course.ID {
+			case 26:
+				if normalCafeCourseSet {
+					break
+				}
+				normalCafeCourseSet = true
+				resp = append(resp, Course{ID: 25, Expiry: time.Time{}})
+				fallthrough
+			case 9:
+				if netcafeCourseSet {
+					break
+				}
+				netcafeCourseSet = true
+				resp = append(resp, Course{ID: 30, Expiry: time.Time{}})
+			}
+			course.Expiry = time.Date(2030, 1, 1, 0, 0, 0, 0, time.FixedZone("UTC+9", 9*60*60))
+			resp = append(resp, course)
+			rights -= course.Value()
+		}
+	}
+	rights = 0
+	for _, course := range resp {
+		rights += course.Value()
+	}
+	return resp, rights
+}