package jobdef

import (
	"os"
	"path/filepath"
	"testing"
)

func TestLoadValid(t *testing.T) {
	dir := t.TempDir()
	content := `
job:
  name: test-job
  version: 1
  description: "A test job"
  trigger:
    type: manual
  scope:
    type: item
  compute:
    type: validate
    command: create-validate
  runner:
    tags: [create]
  timeout: 300
  max_retries: 2
  priority: 50
`
	path := filepath.Join(dir, "test-job.yaml")
	if err := os.WriteFile(path, []byte(content), 0644); err != nil {
		t.Fatalf("writing test file: %v", err)
	}

	def, err := Load(path)
	if err != nil {
		t.Fatalf("Load: %v", err)
	}

	if def.Name != "test-job" {
		t.Errorf("name = %q, want %q", def.Name, "test-job")
	}
	if def.Version != 1 {
		t.Errorf("version = %d, want 1", def.Version)
	}
	if def.Trigger.Type != "manual" {
		t.Errorf("trigger type = %q, want %q", def.Trigger.Type, "manual")
	}
	if def.Scope.Type != "item" {
		t.Errorf("scope type = %q, want %q", def.Scope.Type, "item")
	}
	if def.Compute.Type != "validate" {
		t.Errorf("compute type = %q, want %q", def.Compute.Type, "validate")
	}
	if def.Compute.Command != "create-validate" {
		t.Errorf("compute command = %q, want %q", def.Compute.Command, "create-validate")
	}
	if len(def.Runner.Tags) != 1 || def.Runner.Tags[0] != "create" {
		t.Errorf("runner tags = %v, want [create]", def.Runner.Tags)
	}
	if def.Timeout != 300 {
		t.Errorf("timeout = %d, want 300", def.Timeout)
	}
	if def.MaxRetries != 2 {
		t.Errorf("max_retries = %d, want 2", def.MaxRetries)
	}
	if def.Priority != 50 {
		t.Errorf("priority = %d, want 50", def.Priority)
	}
}

func TestLoadDefaults(t *testing.T) {
	dir := t.TempDir()
	content := `
job:
  name: minimal
  trigger:
    type: manual
  scope:
    type: item
  compute:
    type: custom
    command: do-something
`
	path := filepath.Join(dir, "minimal.yaml")
	if err := os.WriteFile(path, []byte(content), 0644); err != nil {
		t.Fatalf("writing test file: %v", err)
	}

	def, err := Load(path)
	if err != nil {
		t.Fatalf("Load: %v", err)
	}

	if def.Timeout != 600 {
		t.Errorf("default timeout = %d, want 600", def.Timeout)
	}
	if def.MaxRetries != 1 {
		t.Errorf("default max_retries = %d, want 1", def.MaxRetries)
	}
	if def.Priority != 100 {
		t.Errorf("default priority = %d, want 100", def.Priority)
	}
	if def.Version != 1 {
		t.Errorf("default version = %d, want 1", def.Version)
	}
}

func TestLoadInvalidTriggerType(t *testing.T) {
	dir := t.TempDir()
	content := `
job:
  name: bad-trigger
  trigger:
    type: invalid_trigger
  scope:
    type: item
  compute:
    type: validate
    command: create-validate
`
	path := filepath.Join(dir, "bad.yaml")
	if err := os.WriteFile(path, []byte(content), 0644); err != nil {
		t.Fatalf("writing test file: %v", err)
	}

	_, err := Load(path)
	if err == nil {
		t.Fatal("expected error for invalid trigger type")
	}
}

func TestLoadMissingName(t *testing.T) {
	dir := t.TempDir()
	content := `
job:
  trigger:
    type: manual
  scope:
    type: item
  compute:
    type: validate
    command: create-validate
`
	path := filepath.Join(dir, "no-name.yaml")
	if err := os.WriteFile(path, []byte(content), 0644); err != nil {
		t.Fatalf("writing test file: %v", err)
	}

	_, err := Load(path)
	if err == nil {
		t.Fatal("expected error for missing name")
	}
}

func TestLoadMissingCommand(t *testing.T) {
	dir := t.TempDir()
	content := `
job:
  name: no-command
  trigger:
    type: manual
  scope:
    type: item
  compute:
    type: validate
`
	path := filepath.Join(dir, "no-cmd.yaml")
	if err := os.WriteFile(path, []byte(content), 0644); err != nil {
		t.Fatalf("writing test file: %v", err)
	}

	_, err := Load(path)
	if err == nil {
		t.Fatal("expected error for missing command")
	}
}

func TestLoadAllDirectory(t *testing.T) {
	dir := t.TempDir()

	job1 := `
job:
  name: job-one
  trigger:
    type: manual
  scope:
    type: item
  compute:
    type: validate
    command: create-validate
`
	job2 := `
job:
  name: job-two
  trigger:
    type: revision_created
  scope:
    type: assembly
  compute:
    type: export
    command: create-export
`
	if err := os.WriteFile(filepath.Join(dir, "one.yaml"), []byte(job1), 0644); err != nil {
		t.Fatal(err)
	}
	if err := os.WriteFile(filepath.Join(dir, "two.yml"), []byte(job2), 0644); err != nil {
		t.Fatal(err)
	}
	// Non-YAML file should be ignored
	if err := os.WriteFile(filepath.Join(dir, "readme.txt"), []byte("ignore me"), 0644); err != nil {
		t.Fatal(err)
	}

	defs, err := LoadAll(dir)
	if err != nil {
		t.Fatalf("LoadAll: %v", err)
	}

	if len(defs) != 2 {
		t.Fatalf("loaded %d definitions, want 2", len(defs))
	}
	if _, ok := defs["job-one"]; !ok {
		t.Error("job-one not found")
	}
	if _, ok := defs["job-two"]; !ok {
		t.Error("job-two not found")
	}
}

func TestLoadAllEmptyDirectory(t *testing.T) {
	dir := t.TempDir()

	defs, err := LoadAll(dir)
	if err != nil {
		t.Fatalf("LoadAll: %v", err)
	}
	if len(defs) != 0 {
		t.Errorf("loaded %d definitions from empty dir, want 0", len(defs))
	}
}

func TestLoadWithFilter(t *testing.T) {
	dir := t.TempDir()
	content := `
job:
  name: filtered-job
  trigger:
    type: revision_created
    filter:
      item_type: assembly
  scope:
    type: assembly
  compute:
    type: validate
    command: create-validate
`
	path := filepath.Join(dir, "filtered.yaml")
	if err := os.WriteFile(path, []byte(content), 0644); err != nil {
		t.Fatalf("writing test file: %v", err)
	}

	def, err := Load(path)
	if err != nil {
		t.Fatalf("Load: %v", err)
	}

	if def.Trigger.Filter["item_type"] != "assembly" {
		t.Errorf("filter item_type = %q, want %q", def.Trigger.Filter["item_type"], "assembly")
	}
}

func TestLoadWithArgs(t *testing.T) {
	dir := t.TempDir()
	content := `
job:
  name: args-job
  trigger:
    type: manual
  scope:
    type: item
  compute:
    type: export
    command: create-export
    args:
      format: step
      include_mesh: true
`
	path := filepath.Join(dir, "args.yaml")
	if err := os.WriteFile(path, []byte(content), 0644); err != nil {
		t.Fatalf("writing test file: %v", err)
	}

	def, err := Load(path)
	if err != nil {
		t.Fatalf("Load: %v", err)
	}

	if def.Compute.Args["format"] != "step" {
		t.Errorf("args format = %v, want %q", def.Compute.Args["format"], "step")
	}
	if def.Compute.Args["include_mesh"] != true {
		t.Errorf("args include_mesh = %v, want true", def.Compute.Args["include_mesh"])
	}
}

func TestValidateInvalidScopeType(t *testing.T) {
	d := &Definition{
		Name:    "test",
		Trigger: TriggerConfig{Type: "manual"},
		Scope:   ScopeConfig{Type: "galaxy"},
		Compute: ComputeConfig{Type: "validate", Command: "create-validate"},
	}
	if err := d.Validate(); err == nil {
		t.Fatal("expected error for invalid scope type")
	}
}

func TestValidateInvalidComputeType(t *testing.T) {
	d := &Definition{
		Name:    "test",
		Trigger: TriggerConfig{Type: "manual"},
		Scope:   ScopeConfig{Type: "item"},
		Compute: ComputeConfig{Type: "teleport", Command: "beam-up"},
	}
	if err := d.Validate(); err == nil {
		t.Fatal("expected error for invalid compute type")
	}
}