package main

import (
	"fmt"
	"os"
)

func init() {
	register(Check{
		Seq:   22,
		ID:    "2c",
		Title: "Standalone plugin SDK import boundaries",
		Run: func(ctx *ScanContext, rep *Reporter) {
			// Check 2c: Standalone plugin SDK import boundaries
			fmt.Println("=== Check 2c: Standalone plugin SDK import boundaries ===")
			var cmsGoModViolations []pluginGoModViolation
			var pluginImportViolations []pluginImportViolation
			var pluginGoModViolations []pluginGoModViolation
			var standalonePluginLabels []string
			checkedStandalonePluginRoots := make(map[string]bool)
			requiredSDKVersion, requiredSDKVersionErr := currentCMSCoreSDKVersion()
			if requiredSDKVersionErr != nil {
				fmt.Printf("  ERROR: failed to resolve CMS SDK version: %v\n", requiredSDKVersionErr)
				os.Exit(2)
			}
			checkStandalonePluginRoot := func(root string, label string) {
				if checkedStandalonePluginRoots[root] || !shouldCheckStandalonePluginImports(root) {
					return
				}
				checkedStandalonePluginRoots[root] = true
				standalonePluginLabels = append(standalonePluginLabels, label)
				for _, v := range checkStandalonePluginImports(root) {
					v.file = prefixDisplayPath(label, v.file)
					pluginImportViolations = append(pluginImportViolations, v)
				}
				for _, v := range checkStandalonePluginGoMod(root, requiredSDKVersion) {
					v.file = prefixDisplayPath(label, v.file)
					pluginGoModViolations = append(pluginGoModViolations, v)
				}
			}
			for _, target := range ctx.backendTargets {
				if samePath(target.root, ctx.backendDir) {
					for _, v := range checkCMSCoreSDKGoMod(target.root) {
						v.file = prefixDisplayPath(target.displayOrRoot(), v.file)
						cmsGoModViolations = append(cmsGoModViolations, v)
					}
				}
				checkStandalonePluginRoot(target.root, target.displayOrRoot())
			}
			for _, target := range ctx.pluginTargets {
				checkStandalonePluginRoot(target.root, target.display)
			}
			if len(cmsGoModViolations) > 0 || len(pluginImportViolations) > 0 || len(pluginGoModViolations) > 0 {
				if len(cmsGoModViolations) > 0 {
					fmt.Printf("  FAIL: %d CMS backend go.mod violation(s):\n", len(cmsGoModViolations))
					for _, v := range cmsGoModViolations {
						if v.line > 0 {
							fmt.Printf("    %s:%d [%s] %s\n", v.file, v.line, v.rule, v.detail)
							continue
						}
						fmt.Printf("    %s [%s] %s\n", v.file, v.rule, v.detail)
					}
				}
				if len(pluginImportViolations) > 0 {
					fmt.Printf("  FAIL: %d standalone plugin import violation(s):\n", len(pluginImportViolations))
					for _, v := range pluginImportViolations {
						fmt.Printf("    %s:%d imports BlockNinja CMS package %q\n", v.file, v.line, v.importPath)
					}
				}
				if len(pluginGoModViolations) > 0 {
					fmt.Printf("  FAIL: %d standalone plugin go.mod violation(s):\n", len(pluginGoModViolations))
					for _, v := range pluginGoModViolations {
						if v.line > 0 {
							fmt.Printf("    %s:%d [%s] %s\n", v.file, v.line, v.rule, v.detail)
							continue
						}
						fmt.Printf("    %s [%s] %s\n", v.file, v.rule, v.detail)
					}
				}
				fmt.Printf("\n  Fix: CMS backend must not replace %s locally, and standalone plugins must use %s imports, require %s %s, and declare no replace directives.\n", blockCoreImportPrefix, blockCoreImportPrefix, blockCoreImportPrefix, requiredSDKVersion)
				rep.Fail()
			} else if len(standalonePluginLabels) > 0 {
				fmt.Printf("  OK: Standalone plugin imports and go.mod stay on SDK version %s\n", requiredSDKVersion)
				printPerTargetOKLines(standalonePluginLabels)
				if ctx.includeCoreTargets {
					fmt.Printf("    - %s/go.mod does not locally replace %s\n", ctx.backendTargets[0].displayOrRoot(), blockCoreImportPrefix)
				}
			} else if ctx.includeCoreTargets {
				fmt.Printf("  OK: %s/go.mod does not locally replace %s\n", ctx.backendTargets[0].displayOrRoot(), blockCoreImportPrefix)
			} else {
				fmt.Println("  SKIP: no standalone plugin roots scanned")
			}

			fmt.Println()
		},
	})
}