// Copyright 2024 Matthew Rich <matthewrich.conf@gmail.com>. All rights reserved.

package mockdata

import (
  "io/ioutil"
  "path/filepath"
  "gopkg.in/yaml.v2"
  "log"
  "fmt"
  "gitea.rosskeen.house/rosskeen.house/testing/fixture"
)

// Return a structure to load the mock data into
type MockObjectFn func() interface{}

type MockParam struct {
  param fixture.Param
  mock MockObjectFn
}

type Parameters struct {
  *fixture.Parameters
  name string
  basepath string
  mockdata MockObjectFn
}

func P(name string, mockdata MockObjectFn) *Parameters { return &Parameters{ name: name, mockdata: mockdata } }

// mockdata.BasePath('./testdata/mock_{testname}_')
func (p *Parameters) BasePath() string {
  if p.basepath == "" {
    g := fmt.Sprintf("mock_%s_", p.name) 
    p.basepath = filepath.Join("./testdata", g)
  }
  return p.basepath
}

// mockdata.Paths(base string)
func (p *Parameters) Paths() []string {
  df, e := filepath.Glob(p.BasePath() + "*")
  if e != nil {
    log.Fatal(e)
  }
  return df
}

func (p *Parameters) Values() []fixture.Param {
  // return TestData files
  paths := p.Paths()
  r := make([]fixture.Param, len(paths))
  for i := range(paths) {
    r[i] = MockParam { param: paths[i], mock: p.mockdata }
  }
  return r
}

func Read(path string, mockdata interface{}) interface{} {
  d,e := ioutil.ReadFile(path)
  if e != nil {
    log.Fatalf("Error reading fixture data from %s: %s", path, e) 
  }
  err := yaml.Unmarshal([]byte(d), mockdata)
  if err != nil {
    log.Printf("%s", err)
  }
  return mockdata
}

func ReadRaw(path string) interface{} {
  d,e := ioutil.ReadFile(path)
  if e != nil {
    log.Fatalf("Error reading fixture data from %s: %s", path, e) 
  }
  return d
}