Bank interest legacy java7

contributor_tasks/bank-interest-legacy-java7/Dockerfile

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+FROM --platform=linux/amd64 ghcr.io/laude-institute/t-bench/python-3-13:20250620
+
+RUN apt-get update \
+ && apt-get install -y --no-install-recommends ca-certificates curl \
+ && rm -rf /var/lib/apt/lists/*
+
+ENV JAVA_HOME=/opt/jdk7
+ENV PATH="$JAVA_HOME/bin:$PATH"
+
+ARG ZULU7_URL=https://cdn.azul.com/zulu/bin/zulu7.56.0.11-ca-jdk7.0.352-linux_x64.tar.gz
+ARG ZULU7_SHA256=8a7387c1ed151474301b6553c6046f865dc6c1e1890bcf106acc2780c55727c8
+RUN mkdir -p /opt/zulu7 \
+ && curl -fsSL "$ZULU7_URL" -o /tmp/zulu7.tgz \
+ && echo "$ZULU7_SHA256  /tmp/zulu7.tgz" | sha256sum -c - \
+ && tar -xzf /tmp/zulu7.tgz -C /opt/zulu7 \
+ && rm /tmp/zulu7.tgz \
+ && JDK_DIR="$(find /opt/zulu7 -mindepth 1 -maxdepth 1 -type d -name 'zulu7*' | head -n 1)" \
+ && test -n "$JDK_DIR" \
+ && rm -rf /opt/jdk7 \
+ && ln -s "$JDK_DIR" /opt/jdk7 \
+ && ln -sf /opt/jdk7/bin/java /usr/local/bin/java \
+ && ln -sf /opt/jdk7/bin/javac /usr/local/bin/javac \
+ && ln -sf /opt/jdk7/bin/jar /usr/local/bin/jar
+
+RUN pip install --no-cache-dir pytest==8.4.2
+
+WORKDIR /app
+
+RUN mkdir -p /opt/legacy-lib \
+ && curl -fsSL -o /opt/legacy-lib/h2-1.3.176.jar https://repo1.maven.org/maven2/com/h2database/h2/1.3.176/h2-1.3.176.jar \
+ && true
+
+COPY data ./data
+
+CMD ["bash"]

contributor_tasks/bank-interest-legacy-java7/data/accounts.csv

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+account_id,opened_at,start_balance,base_apr,promo_apr,promo_days,tier_threshold,tier_apr,currency,fee_plan
+A1001,2024-02-01,10000.00,0.01000,0.00500,29,5000.00,0.00200,USD,PLAN_A
+A1002,2020-01-01,5000.00,0.00800,0.00000,0,5000.00,0.00100,USD,PLAN_B
+A1003,2023-12-01,-10.00,0.02000,0.00000,0,10000.00,0.00500,EUR,PLAN_A
+A1004,2023-01-01,36500.00,0.01005,0.00000,0,999999.00,0.00000,USD,PLAN_C

contributor_tasks/bank-interest-legacy-java7/data/biz_date.txt

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+2024-03-01

contributor_tasks/bank-interest-legacy-java7/data/fee_rules.csv

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+fee_plan,applies_to,flat_fee,pct_fee,min_fee,max_fee
+PLAN_A,DEBIT,0.50,0.005,0.25,5.00
+PLAN_B,ALL,0.10,0.002,0.10,2.00
+PLAN_C,CREDIT,0.25,0.001,0.25,1.00

contributor_tasks/bank-interest-legacy-java7/data/fx_pivots.csv

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+pivot
+GBP
+EUR

contributor_tasks/bank-interest-legacy-java7/data/fx_rates.csv

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+rate_date,from_ccy,to_ccy,rate
+2024-01-01,USD,EUR,0.9000
+2024-01-01,EUR,USD,1.1111
+2024-02-01,USD,EUR,0.9100
+2024-02-01,EUR,USD,1.0989
+2024-03-01,USD,EUR,0.9200
+2024-03-01,EUR,USD,1.0870
+2024-02-01,JPY,EUR,0.0065
+2024-03-01,JPY,EUR,0.0066
+2024-02-01,USD,GBP,0.7900
+2024-03-01,USD,GBP,0.8000
+2024-02-01,GBP,JPY,190.00
+2024-03-01,GBP,JPY,188.00
+2024-02-01,JPY,USD,0.0067
+2024-03-01,USD,JPY,150.00
+2024-02-01,CAD,GBP,0.5800
+2024-03-01,GBP,CAD,1.7200
+2024-02-01,CAD,EUR,0.6700
+2024-03-01,EUR,CAD,1.4900

contributor_tasks/bank-interest-legacy-java7/data/transactions.csv

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+tx_id,account_id,effective_date,amount,currency,status,reversal_of
+T001,A1001,2024-03-01,-2000.00,USD,POSTED,
+T002,A1001,2024-03-02,-500.00,EUR,POSTED,
+T003,A1001,2024-02-28,100.00,USD,PENDING,
+T004,A1002,2024-02-15,50.00,USD,POSTED,
+T004,A1002,2024-02-15,50.00,USD,POSTED,
+T005,A1002,2024-02-16,-20.00,USD,POSTED,
+T006,A1002,2024-02-20,20.00,USD,POSTED,T005
+T007,A1003,2024-03-01,10.00,USD,POSTED,
+T008,A1003,2024-03-01,-10.00,EUR,POSTED,NOPE
+T009,A1004,2024-01-15,1000.00,EUR,POSTED,
+T010,A1004,2024-03-01,-1000.00,USD,POSTED,T009
+T011,A1002,2024-03-01,5.00,USD,POSTED,
+T012,A1002,2024-03-05,5.00,USD,POSTED,
+T013,A1001,2024-02-10,30.00,GBP,POSTED,
+T014,A1001,2024-03-01,-10000.00,JPY,POSTED,
+T015,A1002,2024-03-01,100.00,CAD,POSTED,
+T016,A9999,2024-03-01,25.00,USD,POSTED,
+T016,A1001,2024-03-01,25.00,USD,POSTED,
+T017,A1003,2024-03-01,-15.00,USD,POSTED,T018
+T018,A1003,2024-03-01,15.00,USD,POSTED,

contributor_tasks/bank-interest-legacy-java7/docker-compose.yaml

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+services:
+  client:
+    build:
+      dockerfile: Dockerfile
+    image: ${T_BENCH_TASK_DOCKER_CLIENT_IMAGE_NAME}
+    container_name: ${T_BENCH_TASK_DOCKER_CLIENT_CONTAINER_NAME}
+    command: [ "sh", "-c", "sleep infinity" ]
+    environment:
+      - TEST_DIR=${T_BENCH_TEST_DIR}
+    volumes:
+      - ${T_BENCH_TASK_LOGS_PATH}:${T_BENCH_CONTAINER_LOGS_PATH}
+      - ${T_BENCH_TASK_AGENT_LOGS_PATH}:${T_BENCH_CONTAINER_AGENT_LOGS_PATH}

contributor_tasks/bank-interest-legacy-java7/run-tests.sh

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+#!/bin/bash
+set -euo pipefail
+pytest $TEST_DIR/test_outputs.py -v -rA

contributor_tasks/bank-interest-legacy-java7/task.yaml

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+instruction: |-
+  Old nightly batch for Java 7. Put BankBatchJob in /app/job.jar, compile to Java 7 bytecode, and run it. Running it again on the same day should give the same results.
+
+  Inputs are in /app/data:
+  - accounts.csv
+  - transactions.csv
+  - biz_date.txt
+  - fx_rates.csv
+  - fx_pivots.csv
+  - fee_rules.csv
+
+  Outputs are in /app/output:
+  - interest.csv, LF + trailing newline.
+    Account, business date, end-of-day balance, annual percentage rate (APR), and daily interest.
+    apr 6dp, eod_balance, and daily_interest 2dp, sorted by account_id.
+  - exceptions.csv, LF + trailing newline.
+    Title: row_num, tx_id, and reason.
+    Row_num is 1-based data row.
+  - stats.json is single-line JSON without newlines.
+    Business date, accounts, valid_txs, skipped_txs, total_interest, and report_md5.
+    report_md5 is md5 of interest.csv bytes. total_interest=2dp.
+  - bankdb.h2.db H2 database with ACCOUNTS and TXNS (row_num 1..N).
+    There is one row in RUN_AUDIT: jdbc_url, biz_date, accounts, valid_txs, skipped_txs, and report_md5.
+
+  Use these reasons in file order:
+  - REVERSED (both rows if reversal_of points to any tx_id in file, even if referenced row appears later)
+  - REVERSAL_MISSING
+  - FX_MISSING (before FX)
+  - AFTER_BIZ_DATE
+  - status!=POSTED (use status)
+  - DUPLICATE (any tx_id after first appearance, even if first row was invalid)
+
+  For FX, use latest rate_date <= effective_date. If direct and reverse exist, choose the newer one; if tied, use direct. reverse 1/rate (HALF_EVEN 10dp). If no direct/reverse, try fx_pivots.csv in order: solve each leg the same way, multiply, round HALF_EVEN 10dp (skip pivots equal to from/to). The first pivot wins; if not, FX_MISSING.
+  Fees: First, change currency to account's. fee = flat fee + percentage fee * abs(amount), rounded to nearest half-even 2dp and limited to [min_fee,max_fee]. adjusted = amount - fee, rounded Half-even 2dp. This applies to DEBIT, CREDIT, and ALL fee plans. eod_balance = start_balance + sum(valid adjusted), rounded to two decimal places. If eod_balance is greater than or equal to tier_threshold, APR = base_apr + tier_apr + promo_apr (if promo_days > 0 and days_since_opened_at < promo_days; opened_at = day 0).
+  Interest uses principal = max(eod_balance,0). daily_interest_raw = principal * apr/365 (HALF_EVEN 10dp). interest.csv rounds daily_interest_raw to two decimal places. total_interest is sum(daily_interest_raw, keep 10dp) rounded to 2dp.
+
+  Don't touch /app/data. H2 1.3 DB2 mode; user sa has a blank password. JDBC URL must be a single literal string that starts with "jdbc:h2:" and has "MODE=DB2" and "/app/output/bankdb" in it. Use at runtime is required. Java 7-only bytecode
+
+difficulty: hard
+category: legacy
+tags:
+  - java
+  - legacy
+  - banking
+parser_name: pytest
+max_agent_timeout_sec: 300.0
+max_test_timeout_sec: 120.0
+run_tests_in_same_shell: false
+expert_time_estimate_min: 20
+junior_time_estimate_min: 40