package gtest

import (
  "log"
  "strings"
  "path"
  "golang.flu0r1ne.net/planr"
  "github.com/BurntSushi/toml"
)

const (
  DEFAULT_TIMEOUT = 1000
)

type Defaults struct {
  Name          string
  Suite         string
  Testfile      string
  Srcs          []string
  Timeout       uint
}

func (child *Defaults) Inherit(p interface{}) {
  parent := p.(*Defaults)

  if(child.Name == "")           { child.Name = parent.Name }
  if(child.Suite == "")          { child.Suite = parent.Suite }
  if(child.Testfile == "")       { child.Testfile = parent.Testfile }
  if(len(child.Srcs) == 0)       { child.Srcs = parent.Srcs }
  if(child.Timeout == 0)         { child.Timeout = parent.Timeout }
}


type Config struct {
  Defaults
}

func (c * Config) finalize(path string) {
  if c.Name == "" {
    log.Fatalf("\"name\" is not defined for unit: %s\n", path)
  } else if c.Suite == "" {
    log.Fatalf("\"suite\" is not defined for unit: %s\n", path)
  } else if c.Testfile == "" {
    log.Fatalf("\"testfile\" is not defined for unit: %s\n", path)
  }

  if c.Timeout == 0 {
    c.Timeout = DEFAULT_TIMEOUT;
  }
}

func srcList(srcdir string, srcs []string) string {
  builder := strings.Builder {}

  for _, src := range srcs {
    builder.WriteString("\"")
    builder.WriteString(path.Join(srcdir, src))
    builder.WriteString("\"\n  ")
  }
  
  return builder.String()
}

func cmakeUnits(e []executable, dirs planr.DirConfig) []cmakeUnit {
  
  units := make([]cmakeUnit, len(e))
  for i, exe := range e {
    testpath := path.Join(dirs.Tests(), exe.testpath)
    srclist  := srcList(dirs.Src(), exe.srcs)
    
    units[i] = cmakeUnit { exe.exeNm, testpath, srclist }
  }

  return units
}

func finalizeConfigs(tcs []planr.TestCase) {
  for i := range tcs {
    cfg := tcs[i].AdapterConfig().(*Config)

    cfg.finalize(tcs[i].Path)
  }
}

func ParseConfig(prim toml.Primitive) (planr.InheritableConfig, error) {
    config := Config{}
  
    if err := toml.PrimitiveDecode(prim, &config); err != nil {
      return nil, err
    }
    
    return &config, nil
}

func ParseDefaultConfig(prim toml.Primitive) (planr.InheritableConfig, error) {
    config := Defaults{}

    if err := toml.PrimitiveDecode(prim, &config); err != nil {
      return nil, err
    }

    return &config, nil
}