📝 TODO: Add GUI support

[Rexpert]

As a non-programming background user, I wish to have an interactive dashboard that has the following functions:

1. TNG transaction Table
2. eWallet balance level over time
3. Top N Spending Merchant (Frequency / Total Spent) Including RFID Toll payment
4. Top N Reload Source (Frequency / Total Reload) Including GO+ Interest
5. Spending pattern over a week

Expectation:

1. Scrollable Transaction Table (best if I can interact (click/hover) on the transaction record to view the detail)
2. Line chart for balance level
3. Either donut chart or bar chart for Top N transactions
4. Weekly Heatmap

Suggestion:

• Using Selenium + Apache Echarts to visualize the dashboard, to the best of my knowledge
• or use Streamlit as suggested by @andytan0727
• Considering some users would only like to output CSV instead of viewing the dashboard, make a config file to store user settings

[Rexpert]

2. Line chart for balance level

2. Waterfall diagram for net gain / net spend in the eWallet

Since the balance column is unavailable in the CSV output, I decided to drop this section. However to trace the reload cycle of the eWallet, I suggest to use the WaterFall diagram in this Demo: