// Package tasks provides task processing implementations.
package tasks

import (
	"jiggablend/internal/runner/api"
	"jiggablend/internal/runner/blender"
	"jiggablend/internal/runner/encoding"
	"jiggablend/internal/runner/workspace"
	"jiggablend/pkg/executils"
	"jiggablend/pkg/types"
)

// Processor handles a specific task type.
type Processor interface {
	Process(ctx *Context) error
}

// Context provides task execution context.
type Context struct {
	TaskID   int64
	JobID    int64
	JobName  string
	Frame    int
	TaskType string
	WorkDir  string
	JobToken string
	Metadata *types.BlendMetadata

	Manager   *api.ManagerClient
	JobConn   *api.JobConnection
	Workspace *workspace.Manager
	Blender   *blender.Manager
	Encoder   *encoding.Selector
	Processes *executils.ProcessTracker
}

// NewContext creates a new task context.
func NewContext(
	taskID, jobID int64,
	jobName string,
	frame int,
	taskType string,
	workDir string,
	jobToken string,
	metadata *types.BlendMetadata,
	manager *api.ManagerClient,
	jobConn *api.JobConnection,
	ws *workspace.Manager,
	blenderMgr *blender.Manager,
	encoder *encoding.Selector,
	processes *executils.ProcessTracker,
) *Context {
	return &Context{
		TaskID:    taskID,
		JobID:     jobID,
		JobName:   jobName,
		Frame:     frame,
		TaskType:  taskType,
		WorkDir:   workDir,
		JobToken:  jobToken,
		Metadata:  metadata,
		Manager:   manager,
		JobConn:   jobConn,
		Workspace: ws,
		Blender:   blenderMgr,
		Encoder:   encoder,
		Processes: processes,
	}
}

// Log sends a log entry to the manager.
func (c *Context) Log(level types.LogLevel, message string) {
	if c.JobConn != nil {
		c.JobConn.Log(c.TaskID, level, message)
	}
}

// Info logs an info message.
func (c *Context) Info(message string) {
	c.Log(types.LogLevelInfo, message)
}

// Warn logs a warning message.
func (c *Context) Warn(message string) {
	c.Log(types.LogLevelWarn, message)
}

// Error logs an error message.
func (c *Context) Error(message string) {
	c.Log(types.LogLevelError, message)
}

// Progress sends a progress update.
func (c *Context) Progress(progress float64) {
	if c.JobConn != nil {
		c.JobConn.Progress(c.TaskID, progress)
	}
}

// OutputUploaded notifies that an output file was uploaded.
func (c *Context) OutputUploaded(fileName string) {
	if c.JobConn != nil {
		c.JobConn.OutputUploaded(c.TaskID, fileName)
	}
}

// Complete sends task completion.
func (c *Context) Complete(success bool, errorMsg error) {
	if c.JobConn != nil {
		c.JobConn.Complete(c.TaskID, success, errorMsg)
	}
}

// GetOutputFormat returns the output format from metadata or default.
func (c *Context) GetOutputFormat() string {
	if c.Metadata != nil && c.Metadata.RenderSettings.OutputFormat != "" {
		return c.Metadata.RenderSettings.OutputFormat
	}
	return "PNG"
}

// GetFrameRate returns the frame rate from metadata or default.
func (c *Context) GetFrameRate() float64 {
	if c.Metadata != nil && c.Metadata.RenderSettings.FrameRate > 0 {
		return c.Metadata.RenderSettings.FrameRate
	}
	return 24.0
}

// GetBlenderVersion returns the Blender version from metadata.
func (c *Context) GetBlenderVersion() string {
	if c.Metadata != nil {
		return c.Metadata.BlenderVersion
	}
	return ""
}

// ShouldUnhideObjects returns whether to unhide objects.
func (c *Context) ShouldUnhideObjects() bool {
	return c.Metadata != nil && c.Metadata.UnhideObjects != nil && *c.Metadata.UnhideObjects
}

// ShouldEnableExecution returns whether to enable auto-execution.
func (c *Context) ShouldEnableExecution() bool {
	return c.Metadata != nil && c.Metadata.EnableExecution != nil && *c.Metadata.EnableExecution
}

// ShouldPreserveHDR returns whether to preserve HDR range for EXR encoding.
func (c *Context) ShouldPreserveHDR() bool {
	return c.Metadata != nil && c.Metadata.PreserveHDR != nil && *c.Metadata.PreserveHDR
}

// ShouldPreserveAlpha returns whether to preserve alpha channel for EXR encoding.
func (c *Context) ShouldPreserveAlpha() bool {
	return c.Metadata != nil && c.Metadata.PreserveAlpha != nil && *c.Metadata.PreserveAlpha
}