// Package redfishwalk is a vendor-agnostic fallback for archives that carry
// a captured Redfish directory-tree walk (see vendors/redfishtree for the
// detection rule) but aren't claimed by a dedicated vendor parser. Dell TSR
// bundles from iDRAC10-generation firmware are the first known source of
// this format, and are handled directly by vendors/dell (which also carries
// other Dell-specific markers and merges the walk into DCIM-XML-derived
// data). This parser exists so any other vendor that starts shipping the
// same kind of raw Redfish walk is picked up automatically, without needing
// a dedicated parser first.
package redfishwalk

import (
	"fmt"

	"git.mchus.pro/mchus/logpile/internal/collector"
	"git.mchus.pro/mchus/logpile/internal/models"
	"git.mchus.pro/mchus/logpile/internal/parser"
	"git.mchus.pro/mchus/logpile/internal/parser/vendors/redfishtree"
)

const parserVersion = "1.0"

func init() {
	parser.Register(&Parser{})
}

// Parser implements VendorParser for archives containing a raw Redfish
// directory-tree walk with no other recognizable vendor markers.
type Parser struct{}

func (p *Parser) Name() string    { return "Generic Redfish Walk Parser" }
func (p *Parser) Vendor() string  { return "redfish_walk" }
func (p *Parser) Version() string { return parserVersion }

// Detect returns a confidence deliberately placed above the generic text
// fallback (15) but below any dedicated vendor parser, so a vendor-specific
// parser always wins when both recognize the same archive.
func (p *Parser) Detect(files []parser.ExtractedFile) int {
	for _, f := range redfishtree.FindCandidateArchives(files) {
		if redfishtree.Build(f.Content) != nil {
			return 35
		}
	}
	return 0
}

func (p *Parser) Parse(files []parser.ExtractedFile) (*models.AnalysisResult, error) {
	for _, f := range redfishtree.FindCandidateArchives(files) {
		tree := redfishtree.Build(f.Content)
		if tree == nil {
			continue
		}
		result, err := collector.ReplayRedfishFromRawPayloads(map[string]any{"redfish_tree": tree}, nil)
		if err != nil {
			continue
		}
		return result, nil
	}
	return nil, fmt.Errorf("redfish_walk: no Redfish tree snapshot found")
}