package main

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

func init() {
	register(Check{
		Seq:   210,
		ID:    "21",
		Title: "Plugin presets.json validation",
		Run: func(ctx *ScanContext, rep *Reporter) {
			// Check 21: Plugin presets.json validation
			fmt.Println("\n=== Check 21: Plugin presets.json validation ===")
			var presetViolations []presetViolation
			presetsChecked := 0
			// Check internal plugins
			if ctx.includeCoreTargets {
				internalPluginsDir := filepath.Join(ctx.backendDir, "internal", "plugins")
				if dirExists(internalPluginsDir) {
					entries, _ := os.ReadDir(internalPluginsDir)
					for _, entry := range entries {
						if !entry.IsDir() {
							continue
						}
						pluginDir := filepath.Join(internalPluginsDir, entry.Name())
						if !fileExists(filepath.Join(pluginDir, "presets.json")) {
							continue
						}
						presetsChecked++
						for _, v := range checkPresets(pluginDir) {
							v.file = prefixDisplayPath("plugins/"+entry.Name(), v.file)
							presetViolations = append(presetViolations, v)
						}
					}
				}
			}
			// Check external plugin roots
			for _, target := range ctx.resolvedPluginTargets {
				vs := checkPresets(target.root)
				if len(vs) == 0 && len(findPresetsFiles(target.root)) > 0 {
					presetsChecked++
				}
				for _, v := range vs {
					presetsChecked++
					v.file = prefixDisplayPath(target.display, v.file)
					presetViolations = append(presetViolations, v)
				}
			}
			if len(presetViolations) > 0 {
				fmt.Printf("  FAIL: %d presets.json validation error(s):\n", len(presetViolations))
				for _, v := range presetViolations {
					fmt.Printf("    %s — %s\n", v.file, v.message)
				}
				fmt.Println("\n  Fix: Ensure presets.json matches the theme.Theme struct types.")
				fmt.Println("  Common issues: numeric values where strings are expected (e.g., fontWeightBase: 400 → \"400\")")
				rep.Fail()
			} else if presetsChecked > 0 {
				fmt.Printf("  OK: All presets.json files are valid (%d checked)\n", presetsChecked)
			} else {
				fmt.Println("  OK: No presets.json files found in scanned targets")
			}

			fmt.Println()
		},
	})
}