import { toBytecode, run } from "#reef"

// Example 1: Simple arithmetic
const arithmetic = toBytecode([
  ["PUSH", 5],
  ["PUSH", 10],
  ["ADD"],
  ["HALT"]
])

console.log("5 + 10 =", (await run(arithmetic)).value)

// Example 2: Loop with labels
const loop = toBytecode([
  ["PUSH", 0],
  ["STORE", "counter"],
  [".loop:"],
  ["LOAD", "counter"],
  ["PUSH", 5],
  ["LT"],
  ["JUMP_IF_FALSE", ".end"],
  ["LOAD", "counter"],
  ["PUSH", 1],
  ["ADD"],
  ["STORE", "counter"],
  ["JUMP", ".loop"],
  [".end:"],
  ["LOAD", "counter"],
  ["HALT"]
])

console.log("Counter result:", (await run(loop)).value)

// Example 3: Function with defaults
const functionExample = toBytecode([
  ["MAKE_FUNCTION", ["x", "y=10"], ".add_body"],
  ["STORE", "add"],
  ["JUMP", ".after"],
  [".add_body:"],
  ["LOAD", "x"],
  ["LOAD", "y"],
  ["ADD"],
  ["RETURN"],
  [".after:"],
  ["LOAD", "add"],
  ["PUSH", 5],
  ["PUSH", 1],
  ["PUSH", 0],
  ["CALL"],
  ["HALT"]
])

console.log("add(5) with default y=10:", (await run(functionExample)).value)

// Example 4: Variadic function
const variadic = toBytecode([
  ["MAKE_FUNCTION", ["...args"], ".sum_body"],
  ["STORE", "sum"],
  ["JUMP", ".after"],
  [".sum_body:"],
  ["PUSH", 0],
  ["STORE", "total"],
  ["LOAD", "args"],
  ["ARRAY_LEN"],
  ["STORE", "len"],
  ["PUSH", 0],
  ["STORE", "i"],
  [".loop:"],
  ["LOAD", "i"],
  ["LOAD", "len"],
  ["LT"],
  ["JUMP_IF_FALSE", ".done"],
  ["LOAD", "total"],
  ["LOAD", "args"],
  ["LOAD", "i"],
  ["ARRAY_GET"],
  ["ADD"],
  ["STORE", "total"],
  ["LOAD", "i"],
  ["PUSH", 1],
  ["ADD"],
  ["STORE", "i"],
  ["JUMP", ".loop"],
  [".done:"],
  ["LOAD", "total"],
  ["RETURN"],
  [".after:"],
  ["LOAD", "sum"],
  ["PUSH", 10],
  ["PUSH", 20],
  ["PUSH", 30],
  ["PUSH", 3],
  ["PUSH", 0],
  ["CALL"],
  ["HALT"]
])

console.log("sum(10, 20, 30):", (await run(variadic)).value)