package main

import "github.com/gbdubs/golog"

func main() {
  // Creates a new logger, pass it into the methods where you want it.
  g := golog.New()
  // Writes to a local output html file for visual debugging.
  // Use `.Out(bufio.Writer)` to generate this file elsewhere (like S3).
  defer g.OutLocal("debug.html")

  // Supports 5 logging levels, and standard string formatting.
  // Each log is recorded alongside a stack trace.
  g.Fine("Hello World!")
  g.Info("%v %v!", "hello", "world")
  g.Warn("Hello World!")
  g.Error("Hello World!")
  g.Fatal("Goodbyte Cruel World!")

  // Breakpoints record key-value pairs for inspection in the html interface.
  i := 43
  r := colatz(g, i)
  g.Info("Colatz %v = %v", i, r)
}

func colatz(g *golog.Golog, i int) int {
  if (i == 1) {
    g.Info("Found The Bottom!")
    return 0;
  }
  n := i * 3 + 1
  if i % 2 == 0 {
    n = i / 2
  }
  // Every time this line is run, it will record a map from the strings "i" and "n" 
  // to their serialized runtime values (using json serialization) for inspection in 
  // the debugger. A great way to trace out challenging bugs!
  g.BreakPoint("Going Down", i, n)
  r := colatz(g, n) + 1
  g.BreakPoint("Coming Up", i, n, r)
  return r;
}