cache-meter

import type { Register } from 'claude-code'

// Drawn like cache-meter by CodyEngel (band, toast), as modscode read it from the mod's code:
// https://modscode.com/gallery/codyengel-cache-meter/
// Written by modscode from that reading, not copied from the mod: use it as you like.
// Each value below stands for one the mod works out at run time; put in your own.
export const register: Register = on => {
  // the band above the prompt; what else goes there is drawn under it
  on('ui.render', { component: 'AbovePrompt' }, async ($, e, next) => {
    const { Box, Text, Button } = $.ui.resolve(e)
    const percent = '…'
    const tokens = '…'
    const tokens2 = '…'
    return (
      <Box flexDirection="column">
        <Box flexDirection="row" alignItems="center" gap={2}>
          <Text dimColor>
            Cache: cold, nothing sent yet
          </Text>
          <Box flexDirection="row" alignItems="center" gap={1}>
            <Text>
              {"Context "}
              {percent}
              %
            </Text>
            <Text>
              <Text>
                ━━━━━━━━
              </Text>
              <Text dimColor>
                ────────
              </Text>
            </Text>
            <Text dimColor>
              {tokens}
              /
              {tokens2}
            </Text>
          </Box>
          <Button label="Keep warm ✓ ×0" hotkey="k" variant="primary" />
          <Text color="cyan">
            Compacting…
          </Text>
        </Box>
        {await next(e)}
      </Box>
    )
  })

  on('session.start', async ($, e, next) => {
    const why = '…'
    await $.ui.toast(`Keep warm stopped: ${why}`)
    await $.ui.toast(`Prompt cache expired: the next message re-caches the whole context`)
    return next(e)
  })
}