package api

import (
	"testing"

	"jiggablend/pkg/types"
)

func TestMergeBlendMetadataForJobCreate_PreservesUploadMetadata(t *testing.T) {
	uploadMeta := &types.BlendMetadata{
		FrameStart:     -15,
		FrameEnd:       1468,
		BlenderVersion: "4.5.11",
		RenderSettings: types.RenderSettings{
			ResolutionX: 2560,
			ResolutionY: 1440,
			Engine:      "cycles",
			OutputFormat: "EXR",
		},
		SceneInfo: types.SceneInfo{
			ObjectCount: 42,
		},
	}

	frameStart := 800
	frameEnd := 800
	outputFormat := "EXR"
	req := &types.CreateJobRequest{
		FrameStart:   &frameStart,
		FrameEnd:     &frameEnd,
		OutputFormat: &outputFormat,
	}

	meta, err := mergeBlendMetadataForJobCreate(uploadMeta, req)
	if err != nil {
		t.Fatalf("mergeBlendMetadataForJobCreate failed: %v", err)
	}

	if meta.BlenderVersion != "4.5.11" {
		t.Fatalf("expected blender_version 4.5.11, got %q", meta.BlenderVersion)
	}
	if meta.FrameStart != 800 || meta.FrameEnd != 800 {
		t.Fatalf("expected frame range 800-800, got %d-%d", meta.FrameStart, meta.FrameEnd)
	}
	if meta.RenderSettings.ResolutionX != 2560 || meta.RenderSettings.ResolutionY != 1440 {
		t.Fatalf("expected resolution 2560x1440, got %dx%d", meta.RenderSettings.ResolutionX, meta.RenderSettings.ResolutionY)
	}
	if meta.RenderSettings.Engine != "cycles" {
		t.Fatalf("expected engine cycles, got %q", meta.RenderSettings.Engine)
	}
	if meta.RenderSettings.OutputFormat != "EXR" {
		t.Fatalf("expected output_format EXR, got %q", meta.RenderSettings.OutputFormat)
	}
	if meta.SceneInfo.ObjectCount != 42 {
		t.Fatalf("expected scene object_count 42, got %d", meta.SceneInfo.ObjectCount)
	}
}

func TestMergeBlendMetadataForJobCreate_RequestOverridesVersion(t *testing.T) {
	uploadMeta := &types.BlendMetadata{
		BlenderVersion: "4.5.11",
	}

	frameStart := 1
	frameEnd := 1
	override := "4.2.3"
	req := &types.CreateJobRequest{
		FrameStart:     &frameStart,
		FrameEnd:       &frameEnd,
		BlenderVersion: &override,
	}

	meta, err := mergeBlendMetadataForJobCreate(uploadMeta, req)
	if err != nil {
		t.Fatalf("mergeBlendMetadataForJobCreate failed: %v", err)
	}
	if meta.BlenderVersion != "4.2.3" {
		t.Fatalf("expected request override 4.2.3, got %q", meta.BlenderVersion)
	}
}

func TestMergeBlendMetadataForJobCreate_RequiresBlenderVersion(t *testing.T) {
	frameStart := 1
	frameEnd := 1
	req := &types.CreateJobRequest{
		FrameStart: &frameStart,
		FrameEnd:   &frameEnd,
	}

	if _, err := mergeBlendMetadataForJobCreate(nil, req); err == nil {
		t.Fatal("expected error when blender_version is missing")
	}
}

func TestUploadSessionMetadata(t *testing.T) {
	session := &UploadSession{
		ResultMetadata: &types.BlendMetadata{
			BlenderVersion: "4.5.11",
		},
	}

	meta := uploadSessionMetadata(session)
	if meta == nil || meta.BlenderVersion != "4.5.11" {
		t.Fatalf("unexpected metadata: %+v", meta)
	}
}