package editor

import (
	"bytes"
	"fmt"
)

// NewDeterministicFile generates a large byte slice using a repeating pattern.
// Same parameters always produce identical content.
func NewDeterministicFile(seed uint64, blockSize int, repeatCount int) []byte {
	block := make([]byte, blockSize)
	for i := 0; i < blockSize; i++ {
		// Simple deterministic pattern based on seed and index
		block[i] = byte((seed + uint64(i)) % 256)
	}
	return bytes.Repeat(block, repeatCount)
}

// NewLineBasedFile generates a large file with a fixed number of lines.
// Each line is predictably formatted: "Line <num>: <seed-based-data>\n".
func NewLineBasedFile(seed uint64, lineCount int) []byte {
	var buf bytes.Buffer
	for i := 0; i < lineCount; i++ {
		line := fmt.Sprintf("Line %d: seed=%d, data=some-deterministic-filler-text-here\n", i, seed)
		buf.WriteString(line)
	}
	return buf.Bytes()
}