// cue_parser_config.go

package configs

import (
	"cuelang.org/go/cue"
	"cuelang.org/go/cue/cuecontext"
	"cuelang.org/go/cue/load"
	"github.com/hashicorp/hcl/v2"
)

// CueParser is responsible for parsing configuration files written in CUE.
type CueParser struct {
	c *cue.Context
}

// NewCueParser creates and returns a new CueParser.
func NewCueParser() *CueParser {
	return &CueParser{
		c: cuecontext.New(),
	}
}

// LoadCueConfigFile reads the file at the given path and parses it as a CUE config file.
func (p *CueParser) LoadCueConfigFile(path string) (*File, hcl.Diagnostics) {
	// Load the CUE instance from the file
	bis := load.Instances([]string{path}, &load.Config{
		// Configure as needed
	})
	if len(bis) == 0 || bis[0].Err != nil {
		return nil, hcl.Diagnostics{{
			Severity: hcl.DiagError,
			Summary:  "Failed to load CUE file",
			Detail:   bis[0].Err.Error(),
		}}
	}

	instance := p.c.BuildInstance(bis[0])
	if instance.Err() != nil {
		return nil, hcl.Diagnostics{{
			Severity: hcl.DiagError,
			Summary:  "Failed to build CUE instance",
			Detail:   instance.Err().Error(),
		}}
	}

	// Here you would convert the CUE instance into your application's configuration structure.
	// This step highly depends on your specific configuration schema and needs.
	// For example, you might extract specific fields from the CUE instance and populate a File struct.

	file := &File{} // Assume File is your configuration struct
	// Populate file based on the CUE instance data

	return file, nil
}

// Additional functions to parse specific configurations or handle overrides
// would follow a similar pattern, adapted as necessary for their specific purposes.
