# Commuter Allowance Editor — Design Document

## 1. Project Overview

| Item | Value |
|------|-------|
| Application | Excel 2021 (.xlsm) |
| Purpose | Edit commuter certification by referencing master data |
| Module | tuk (通勤 = commutation) |
| Entry Point | メインメニュー (Main Menu sheet) |

---

## 2. Sheet Inventory

### 2.1 Editor Sheets

#### C1 — 通勤手当CSV編集 (Commuter Allowance Editor)
- **HeaderRow**: 6  |  **StartRow**: 8  |  **StartCol**: C  |  **EndCol**: BC
- **Encoding**: shift_jis  |  **HasHeader**: Yes
- **Role**: Main editing sheet — direct cell editing only, no CSV import
- **Key columns**:
  - C: 職員番号 (Employee ID) — triggers address + transport dropdowns
  - S/AA/AI/AQ: 区間N区間コード (Section N Route Code) — triggers fill from M1 + dropdown cascade
  - T/AB/AJ/AR: 区間N交通機関 (Section N Transport Type)
  - U/AC/AK/AS: 区間N発 (Section N Departure Station)
  - V/AD/AL/AT: 区間N着 (Section N Arrival Station)
  - W/AE/AM/AU: 区間N券種 (Section N Ticket Type)
  - X/AF/AN/AV: 区間Nコード (Section N Code)
  - AY: 決定事項区分コード (Determination Category)
  - BB: 手当月額の決定区分コード (Monthly Amount Decision Category)

#### M1 — 区間メンテナンス (Route Maintenance)
- **HeaderRow**: 5  |  **StartRow**: 7  |  **StartCol**: C  |  **EndCol**: N
- **Encoding**: shift_jis  |  **HasHeader**: Yes
- **Role**: Route master — defines routes (code → transport + departure + arrival + fare)
- **Key columns**:
  - C: 利用区間コード (Route Code)
  - D: 交通機関区分 (Transport Category)
  - E: 交通機関名称 (Transport Name)
  - F: 利用区間発名 (Departure Station)
  - G: 利用区間着名 (Arrival Station)
  - I: 運賃 (Fare)
  - J: 現金の場合の1箇月運賃 (Monthly Fare Cash)
  - K: 連絡 (Connection)
  - L: 特別料金区分 (Special Fare Category)
  - M: 特別料金券種 (Special Fare Ticket Type)
  - N: 特別料金負担額 (Special Fare Burden Amount)

#### M2 — 区間詳細メンテナンス (Route Detail Maintenance)
- **HeaderRow**: 6  |  **StartRow**: 8  |  **StartCol**: C  |  **EndCol**: R
- **Encoding**: shift_jis  |  **HasHeader**: Yes
- **Role**: Route detail master — ticket types and pricing per route code
- **Key columns**:
  - C: 利用区間コード (Route Code) — join key with M1
  - I: 券種 (Ticket Type: 0=普通, 1=定期券, 2=回数券, 3=プリペイドカード)
  - J: コード (Ticket Code)
  - K: 名称 (Ticket Name)
  - L: 1箇月運賃/販売額 (Monthly Fare / Sales Price)
  - M: 定期額/券１(額)/利用額 (Monthly / Ticket1 Amount / Usage Amount)
  - N: 定期支給期間/券１(枚)/特別料金 (Monthly Issue Period / Ticket1 Qty / Special Fare)
  - O: 特別料金/券２(額) (Special Fare / Ticket2 Amount)
  - P: 券２(枚) (Ticket2 Quantity)
  - Q: 端数(額) (Fractional Amount)
  - R: 特別料金 (Special Fare)

### 2.2 Master / Config Sheets (Z-series)

#### Z1 — (222)交通機関マスタ (Transport Master)
- **HeaderRow**: 5  |  **StartRow**: 7  |  **StartCol**: C  |  **EndCol**: I
- **Encoding**: utf-8  |  **HasHeader**: No
- **Role**: Transport type catalog (dropdown source for C1 T/AB/AJ/AR)
- **Columns**: C=区分 (code), D=交通機関名称 (name), E=ポップアップ名称, F=コメント, G=略式名称, H=表示しない, I=略称

#### Z2 — (223)通勤_決定事項区分一覧 (Determination Category List)
- **HeaderRow**: 5  |  **StartRow**: 7  |  **StartCol**: C  |  **EndCol**: G
- **Encoding**: utf-8  |  **HasHeader**: No
- **Role**: Determination categories for AY column dropdown
- **Columns**: C=区分 (code), D=画面用名称, E=ポップアップ用名称, F=コメント, G=表示しない

#### Z3 — (224)通勤_手当月額の決定区分一覧 (Monthly Amount Decision Category List)
- **HeaderRow**: 5  |  **StartRow**: 7  |  **StartCol**: C  |  **EndCol**: H
- **Encoding**: utf-8  |  **HasHeader**: No
- **Role**: Monthly amount decision categories for BB column dropdown
- **Columns**: C=区分 (code), D=画面用名称, E=ポップアップ用名称, F=コメント, G=表示しない, H=名称２

#### Z4 — (221)利用区間発着名区分 (Route Station Name Category)
- **HeaderRow**: 5  |  **StartRow**: 7  |  **StartCol**: C  |  **EndCol**: H
- **Encoding**: utf-8  |  **HasHeader**: No
- **Role**: Station name catalog grouped by line (rosen). Used for M1 F/G column dropdowns.
- **Columns**: C=区分 (station code), D=画面用名称/駅名 (station display name), E=ポップアップ名称, F=コメント/路線名 (line name), G=正式名称, H=表示しない
- **Note**: E column (ポップアップ名称) is populated but currently ignored by code. Code reads F (路線名) and D (駅名) only.

### 2.3 Ticket Master Sheets (T-series)

#### T1 — (244)通勤_定期券名称区分一覧 (Commuter Pass Name Category)
- **HeaderRow**: 5  |  **StartRow**: 7  |  **StartCol**: C  |  **EndCol**: G
- **Encoding**: utf-8  |  **HasHeader**: No
- **Role**: Periodic commuter pass types (dropdown source for W/AE/AM/AU)
- **Columns**: C=区分 (code), D=画面用名称, E=ポップアップ用名称, F=コメント, G=表示しない

#### T2 — (245)通勤_回数券名称区分一覧 (Fare Ticket Name Category)
- **HeaderRow**: 5  |  **StartRow**: 7  |  **StartCol**: C  |  **EndCol**: M
- **Encoding**: utf-8  |  **HasHeader**: No
- **Role**: Frequency ticket types with pricing breakdown
- **Columns**: C=区分, D=画面用名称, E=ポップアップ用名称, F=コメント, G=表示しない, H=販売額, I=券１（額）, J=券１（枚）, K=券２（額）, L=券２（枚）, M=端数額
- **Feature**: ZeroFillCols = H,I,J,K,L,M — when C column (区分) is edited and H~M are empty, they are auto-filled with "0"

#### T3 — (246)通勤_プリペイドカード名称区分一覧 (Prepaid Card Name Category)
- **HeaderRow**: 5  |  **StartRow**: 7  |  **StartCol**: C  |  **EndCol**: I
- **Encoding**: utf-8  |  **HasHeader**: No
- **Role**: Prepaid card types with pricing
- **Columns**: C=区分, D=画面用名称, E=ポップアップ用名称, F=コメント, G=表示しない, H=販売額, I=利用額

### 2.4 Other / Reference Sheets

#### O1 — 住所情報 (Address Information)
- **HeaderRow**: 5  |  **StartRow**: 6  |  **StartCol**: C  |  **EndCol**: F
- **Encoding**: shift_jis  |  **HasHeader**: Yes
- **Role**: Employee address lookup (keyed by employee number)
- **Columns**: C=社員番号, D=更新日, E=住所１, F=住所２

#### O2 — (507)発信者一覧 (Sender List)
- **HeaderRow**: 5  |  **StartRow**: 6  |  **StartCol**: C  |  **EndCol**: O
- **Encoding**: utf-8  |  **HasHeader**: No
- **Role**: Sender/official name list for dropdown (O2Cache)
- **Columns**: C=区分, D=画面用名称, E=ポップアップ用名称, F=コメント, G=表示しない, H=発信者名称, I=発信者氏名, J=所属区分（From), K=所属区分（To), L=研究科区分, M=ソート順（From), N=ソート順（To), O=諸手当認定者区分

#### O3 — (220)通勤手当届出事由区分 (Notification Reason Category)
- **HeaderRow**: 5  |  **StartRow**: 6  |  **StartCol**: C  |  **EndCol**: I
- **Encoding**: utf-8  |  **HasHeader**: No
- **Role**: Notification reason categories for C1 G column dropdown (Todoke)
- **Columns**: C=区分, D=画面用名称, E=ポップアップ名称, F=コメント, G=表示しない, H=備考, I=からまで

#### Enum — Dropdown Enum Values
- **Role**: Stores all enum values used in dropdown validation
- **Sections** (each keyed by column position):
  - Col A (KeyCol=1): 特別料金区分 (tokubetuList: 普通=0, 定期券=1, 回数券=2, プリペイドカード=3)
  - Col C (KeyCol=3): 券種 (kenshuList)
  - Col F (KeyCol=6): 連絡 (renrakuList)
  - Col H (KeyCol=8): 往復区分 (oufukuList: 1=片道, 2=往復)
  - Col K (KeyCol=11): 交替制 (koutaiList: 0=非該当, 1=該当)
  - Col N (KeyCol=14): 非該当者認定簿出力区分 (higaitouList: 1=出力, 2=非出力)
  - Col Q (KeyCol=17): エラーメッセージ (errorList)

#### Caches — Pre-rendered Dropdown Cache
- **Role**: Stores pre-built validation lists for named-range based dropdowns
- **Layout**: Each row is a pre-formatted "code:name" string used as named-range source

---

## 3. Cache Architecture

### 3.1 Cache Dictionary Keys

| Constant | Sheet | Structure | Key | Value |
|----------|-------|-----------|-----|-------|
| `CACHE_Z1` | Z1 | Dict(code → Array(name)) | transport code | Array(transport name) |
| `CACHE_Z2` | Z2 | Dict(code → Array(name)) | determination code | Array(display name) |
| `CACHE_Z3` | Z3 | Dict(code → Array(name)) | decision code | Array(display name) |
| `CACHE_Z4ROSEN` | Z4 | Dict(rosen → Dict(station → True)) | line name | Dict of all stations on that line |
| `CACHE_T1` | T1 | Dict(code → Array(name)) | ticket type code | Array(display name) |
| `CACHE_T2` | T2 | Dict(code → Array(all fields)) | ticket code | Array(C,D,E,F,G,H,I,J,K,L,M) |
| `CACHE_T3` | T3 | Dict(code → Array(all fields)) | card code | Array(C,D,E,F,G,H,I) |
| `CACHE_O1` | O1 | Dict(empNo → Array(addr1, addr2)) | employee number | Array(address1, address2) |
| `CACHE_O2` | O2 | Dict(code → Array(name)) | sender code | Array(official name) |
| `CACHE_O3` | O3 | Dict(code → Array(name)) | reason code | Array(display name) |
| `CACHE_M1` | M1 | Dict(code → Array(all cols)) | route code | Array(C,D,E,F,G,H,I,J,K,L,M,N) |
| `CACHE_M2` | M2 | Dict(code → Dict(ticketType → Array(detail))) | route code | Dict of ticket type → Array(I,J,K,L,M,N,O,P,Q,R) |

### 3.2 Special Enum Caches

| Constant | Source | Key | Value |
|----------|--------|-----|-------|
| `tokubetuList` | Enum sheet Col A | int (0-3) | name string |
| `kenshuList` | Enum sheet Col C | int | name string |
| `renrakuList` | Enum sheet Col F | int | name string |
| `oufukuList` | Enum sheet Col H | code | name string |
| `koutaiList` | Enum sheet Col K | code | name string |
| `higaitouList` | Enum sheet Col N | code | name string |
| `errorList` | Enum sheet Col Q | error code | error message |

### 3.3 m1KukanDCache (Special Derived Cache)

- **Type**: Dict(transportCode & "|" & fromStation → Dict(toStation → True))
- **Purpose**: Fast lookup of valid arrival stations given transport + departure
- **Derivation**: Built from M1 sheet at runtime: groups M1 rows by D(transport) + F(fromStation), keys are G(toStation)
- **Used by**: `BuildZ4StationToDropdown` → C1 M1 KukanD cascade

---

## 4. Module Architecture

### 4.1 Module Summary

| Module | Responsibility |
|--------|---------------|
| `Common_Constants` | Error code constants (1001-1009, 2001+) |
| `Common_Global_Cache` | All cache loading, refresh, and lookup. Sheet config definitions (RefreshSheetDict). Global Scripting.Dictionary objects. |
| `Common_Functions` | CSV helpers (GetCSVHeader, CleanCSVField), validation helpers (CheckRequired, CheckAlphanumeric, etc.), utility functions (FormatDateInput, GetCode, MakeSelect) |
| `Common_Selector` | Dropdown builder functions (BuildTransportList, BuildTodokeList, etc.) and Z4 cascade dropdowns (BuildZ4StationFromDropdown, BuildZ4StationToDropdown) |
| `Common_File_Utils` | CSV file read/write (ReadCSV, WriteCSV), BOM handling |
| `Common_Button` | Button action handlers: CSV_Import, Validation, CSV_Export, Sort, Filter, Fit. RunValidationSilent wrapper. |
| `Common_Shape` | Icon/shape alignment utilities (AlignIconsByCenter) |

### 4.2 Sheet Class Summary

| Class | Sheet | Key Methods | Notes |
|-------|-------|-------------|-------|
| `C1` | C1 | Worksheet_Change, FillAddressFromO1, FillTransportFromM1KukanD, FillDepartureFromM1KukanD, FillArrivalFromM1KukanD, FillKukanFromM1, FillCodeFromM2, ValidateRow | Main editor. No CSV import. |
| `M1` | M1 | Worksheet_Change, Validate, BuildM1StationDropdown | Route master with Z4 cascade dropdowns |
| `M2` | M2 | Worksheet_Change, Validate | Route detail master, ticket pricing |
| `T1` | T1 | Validate | Periodic pass name master |
| `T2` | T2 | Worksheet_Change, Validate | Frequency ticket master with ZeroFillCols feature |
| `T3` | T3 | Validate | Prepaid card master |
| `Z1` | Z1 | Validate | Transport type master |
| `Z2` | Z2 | Validate | Determination category master |
| `Z3` | Z3 | Validate | Monthly amount decision master |
| `Z4` | Z4 | Validate | Station name / line master |
| `O1` | O1 | Validate | Employee address master (empty stub) |
| `O2` | O2 | Validate | Sender list (empty stub) |
| `O3` | O3 | Validate | Notification reason master (empty stub) |

---

## 5. Data Flow

### 5.1 C1 Editing Flow (4 Kukan Sections)

```
User edits C (職員番号)
  → FillAddressFromO1: O1Cache lookup → populate I/J dropdowns
  → BuildTransportList → T/AB/AJ/AR dropdown (Z1Cache)

User selects T (交通機関)
  → BuildZ1StationDropdown → U/AC/AK/AS dropdown (Z1Cache)

User selects U (発)
  → BuildZ4StationFromDropdown → F column (from station) dropdown (Z4RosenCache filtered by transport)
  OR: BuildM1KukanDDropdown → V/AD/AL/AT dropdown (m1KukanDCache: transport+from → to stations)

User selects S (区間コード)
  → FillKukanFromM1: M1Cache lookup → fills T/U/V/W/Y with pre-defined values
  → BuildM2Dropdown → W/AE/AM/AU dropdown (M2Cache by route code)
  → BuildM2CodeDropdown → X/AF/AN/AV dropdown (M2Cache by route+券種)

User selects W (券種)
  → BuildM2CodeDropdown → X/AF/AN/AV dropdown (M2Cache: route+券種 → code)

User edits X (コード)
  → FillCodeFromM2: M2Cache lookup → fills AF/AG/AH with M2 details
```

### 5.2 CSV Import Flow

```
CSV_Import_Button clicked
  → User selects CSV file
  → ReadCSV (Common_File_Utils): shift_jis decode, BOM strip
  → GetCSVHeader: extract header row
  → LoadLookup: build/refresh cache for target sheet
  → DO_CSV_Import: parse rows, write to sheet cells
  → RunValidationSilent: call Sheet.Validate per row
  → HandleError on validation failure
```

### 5.3 Validation Flow

```
RunValidationSilent(sheet) → for each data row
  → Sheet.Validate(ws, rowNum, lastDataRow)
  → On error: Err.Raise → caught by HandleError in caller
  → Returns error count
```

---

## 6. Key Constants

### 6.1 CACHE_ Constants (defined in Common_Global_Cache)

```
CACHE_Z4ROSEN = "Z4Rosen"
CACHE_T1      = "T1"
CACHE_T2      = "T2"
CACHE_T3      = "T3"
CACHE_O1      = "O1"
CACHE_O2      = "O2"
CACHE_O3      = "O3"
CACHE_M1      = "M1"
CACHE_M2      = "M2"
```

### 6.2 Validation Error Codes

```
1001: ERR_CACHE_NOT_FOUND
1002: ERR_CACHE_EMPTY
1003: ERR_VALIDATION_FAILED
1004: ERR_CONFIG_NOT_FOUND
1005: ERR_CONFIG_INVALID
1006: ERR_CONFIG_EMPTY_PARAM
1007: ERR_SHEET_MISSING
2001: ERR_VALIDATION
5001-5009: File/CSV errors
```

### 6.3 MakeSelect Format

All dropdown values use `code:name` format:
- Display: `"001:JR 東北線"` → MakeSelect("001", "JR 東北線")
- GetCode("001:JR 東北線") → "001"
- GetDisplay("001:JR 東北線") → "JR 東北線" (via mid/InStr)

---

## 7. Column Layout Reference

### C1 — 58 columns (C to BG)

| Column | Header | Type |
|--------|--------|------|
| C | 職員番号 | string(8) |
| D | 事実発生年月日 | date |
| E | 提出年月日 | date |
| F | 受理年月日 | date |
| G | 届出の事由コード | enum(O3) |
| H | 届出の備考 | string(40) |
| I | 住所１ | string |
| J | 住所２ | string |
| K | 運賃改正・法改正年月日 | date |
| L | 出勤予定日数 | number(2) |
| M | 往復区分 | enum(oufukuList) |
| N | 交替制 | enum(koutaiList) |
| O | 算出式 | string(80) |
| P | 自動車等使用距離 | number(3) |
| Q | 自動車等支給額 | number(6) |
| R | 自動車等駐車場代 | number(6) |
| S~Y | 区間１ (コード/交通/発/着/券種/コード/期間) | mixed |
| Z | 区間１支給開始年月 | date |
| AA~AG | 区間２ | mixed |
| AH | 区間２支給開始年月 | date |
| AI~AM | 区間３ | mixed |
| AN | 区間３支給開始年月 | date |
| AO~AS | 区間４ | mixed |
| AT | 区間４支給開始年月 | date |
| AU | 決定事項区分コード | enum(Z2) |
| AV | 非該当の理由 | string |
| AW | 非該当者認定簿出力区分 | enum(higaitouList) |
| AX | 非該当者認定簿出力区分 (actual) | enum |
| BB | 手当月額の決定区分コード | enum(Z3) |
| BC | 支給の始期 | date |
| BD | 備考 | string |
| BE | 所属コード | string |
| BF | 認定年月日 | date |
| BG | （各庁の長）官職コード | string |

---

## 8. Known Issues / Technical Debt

| # | Severity | Description | Status |
|---|----------|-------------|--------|
| 1 | High | M2.cls: `cacheVal` declared inside If block but used in Select Case outside it | Fixed |
| 2 | High | C1.cls: `kukanCol`, `kukanCode`, `kukanLetter` undeclared in Validate | Fixed |
| 3 | Medium | CJK comments in Common_Shape.bas and C1.cls | Fixed |
| 4 | Medium | Hardcoded path `D:\Project\upds7\vba\` in Import_modules.bas | Fixed |
| 5 | Medium | `sheetConfDict("Z4")` hardcoded key | Fixed |
| 6 | Medium | `sheetName:="M1"` hardcoded in Common_Shape | Fixed |
| 7 | Medium | M1.cls: `"M2"` hardcoded sheet reference | Fixed |
| 8 | Medium | `On Error Resume Next` in 3 cache lookup functions (Common_Global_Cache.bas) | Fixed |
| 9 | Low | T2.cls: CJK in comment `区分` | Fixed |
| 10 | Medium | O1/O2/O3 Validate stubs are empty | Not fixed |