package main

import (
	"fmt"
	"os"
	"strings"
)

func init() {
	register(Check{
		Seq:   40,
		ID:    "4",
		Title: "Frontend auto-format, lint, and typecheck",
		Run: func(ctx *ScanContext, rep *Reporter) {
			// Check 4: Frontend auto-fix, lint, and typecheck
			fmt.Println("=== Check 4: Frontend auto-format, lint, and typecheck ===")
			if len(ctx.frontendTargets) > 0 {
				completedTargets, skippedTargets, lintFailures, lintErr := runFrontendAutoFixAndLint(ctx.repoRoot, ctx.frontendTargets)
				if lintErr != nil {
					fmt.Printf("  ERROR: failed to run frontend lint pipeline: %v\n", lintErr)
					os.Exit(2)
				}

				for _, skipped := range skippedTargets {
					fmt.Printf("  SKIP: %s\n", skipped)
				}

				if len(lintFailures) > 0 {
					fmt.Printf("  FAIL: %d frontend target(s) failed Prettier, ESLint, or TypeScript checks:\n", len(lintFailures))
					for _, failure := range lintFailures {
						fmt.Printf("    [%s] %s\n", failure.stage, failure.target)
						if failure.output != "" {
							for line := range strings.SplitSeq(failure.output, "\n") {
								fmt.Printf("      %s\n", line)
							}
						}
					}
					rep.Fail()
				} else if len(completedTargets) > 0 {
					fmt.Printf("  OK: Prettier, ESLint, and TypeScript checks clean for %d frontend target(s)\n", len(completedTargets))
					for _, target := range completedTargets {
						fmt.Printf("    - %s\n", target)
					}
				} else {
					fmt.Println("  SKIP: no frontend lint targets with ESLint config")
				}
			} else {
				fmt.Println("  SKIP: no frontend sources found")
			}

			fmt.Println()
		},
	})
}