v1.3.0

Summary

Major chart overhaul for terminal trading visualization. Replaces the broken asciigraph-based renderer with a custom ASCII chart engine featuring proper axes, OHLC stats, and candlestick support.

New Features

Charts

• Line charts with aligned Y-axis price ticks and X-axis date labels
• Candlestick charts (--candles) with bullish (█) / bearish (░) bodies and wicks
• Period OHLC stats — Open, High, Low, Close, absolute and percentage change
• Custom date range — --from and --to flags (YYYY-MM-DD or YYYY-MM-DD HH:MM)
• Chart sizing — --width and --height flags (terminal character units)
• Interval presets — 1d, 7d, 14d, 30d, 90d, 180d, 1y, max (unchanged)

CLI Flags

--from string    Chart start date
--to string      Chart end date
--width int      Chart width (default 80)
--height int     Chart height (default 20)
--candles        Candlestick mode
--interval       Time interval preset
--graph          Enable chart view

Bug Fixes

• Fixed Y-axis showing thousands of raw price values alongside chart output
• Fixed missing X-axis date labels on line charts
• Fixed inverted Y-axis on candlestick charts
• Fixed X-axis line overwriting bottom candle bodies

Cleanup

• Removed github.com/guptarohit/asciigraph dependency
• New utils/chart.go module with dedicated rendering and tests
• README updated with v1.3.0 chart examples

Tests

go test ./... -count=1

Chart unit tests cover date parsing, filtering, OHLC stats, axis rendering, and Y-axis orientation.

Installation

go install github.com/mrcnserkan/crypto@v1.3.0

Examples

crypto bitcoin --graph
crypto bitcoin --graph --candles
crypto bitcoin --graph --interval 30d
crypto bitcoin --graph --from 2026-06-01 --to 2026-06-30
crypto bitcoin --graph --width 100 --height 24