package tools

import (
	"context"
	"os"
	"path/filepath"
	"strings"
	"testing"
	"time"

	"spark-mcp-go/internal/cluster"
)

func TestSparkSubmit_PathPassthrough(t *testing.T) {
	deps, repo := testDepsWithDataDir(t)
	deps.SparkSubmitTimeout = 5 * time.Second
	store := deps.UploadStore

	fileID, _, _, _, absPath, err := store.Save([]byte("print('hi')\n"), "hello.py")
	if err != nil {
		t.Fatalf("save upload: %v", err)
	}

	echoed := filepath.Join(t.TempDir(), "echoed")
	echoScript := filepath.Join(t.TempDir(), "echo-args.sh")
	if err := os.WriteFile(echoScript, []byte("#!/bin/sh\nfor arg do\n  echo \"$arg\" >> \"$ECHO_FILE\"\ndone\n"), 0o755); err != nil {
		t.Fatalf("write echo script: %v", err)
	}

	t.Setenv("ECHO_FILE", echoed)

	createCluster(t, repo, &cluster.Cluster{
		ID:                    "cluster-echo",
		Name:                  "Echo",
		IsActive:              true,
		AuthType:              cluster.AuthNone,
		SparkSubmitExecuteBin: echoScript,
	})

	req := newToolRequest(SparkSubmitName, map[string]any{
		"cluster_id": "cluster-echo",
		"args":       []any{absPath, "--class", "Main"},
	})
	res, err := deps.SparkSubmitHandler(context.Background(), req)
	if err != nil {
		t.Fatalf("handler error: %v", err)
	}
	if res.IsError {
		t.Fatalf("unexpected error result: %v", res.Content)
	}

	got, err := os.ReadFile(echoed)
	if err != nil {
		t.Fatalf("read echoed args: %v", err)
	}
	lines := strings.Split(strings.TrimSpace(string(got)), "\n")
	want := []string{absPath, "--class", "Main"}
	if len(lines) != len(want) {
		t.Fatalf("echoed lines=%v, want %v", lines, want)
	}
	for i, l := range lines {
		if l != want[i] {
			t.Errorf("line[%d]=%q, want %q", i, l, want[i])
		}
	}

	// Sanity: the canonical path still contains the minted file ID.
	if !strings.HasSuffix(absPath, "/"+fileID) {
		t.Errorf("absPath=%q does not end with fileID %q", absPath, fileID)
	}
}

func TestSparkSubmit_ClusterLocalPathPassthrough(t *testing.T) {
	deps, repo := testDepsWithDataDir(t)
	deps.SparkSubmitTimeout = 5 * time.Second

	echoed := filepath.Join(t.TempDir(), "echoed")
	echoScript := filepath.Join(t.TempDir(), "echo-args.sh")
	if err := os.WriteFile(echoScript, []byte("#!/bin/sh\nfor arg do\n  echo \"$arg\" >> \"$ECHO_FILE\"\ndone\n"), 0o755); err != nil {
		t.Fatalf("write echo script: %v", err)
	}

	t.Setenv("ECHO_FILE", echoed)

	createCluster(t, repo, &cluster.Cluster{
		ID:                    "cluster-echo",
		Name:                  "Echo",
		IsActive:              true,
		AuthType:              cluster.AuthNone,
		SparkSubmitExecuteBin: echoScript,
	})

	clusterLocalPath := "/usr/bin/env"
	req := newToolRequest(SparkSubmitName, map[string]any{
		"cluster_id": "cluster-echo",
		"args":       []any{clusterLocalPath, "--class", "Main"},
	})
	res, err := deps.SparkSubmitHandler(context.Background(), req)
	if err != nil {
		t.Fatalf("handler error: %v", err)
	}
	if res.IsError {
		t.Fatalf("unexpected error result: %v", res.Content)
	}

	got, err := os.ReadFile(echoed)
	if err != nil {
		t.Fatalf("read echoed args: %v", err)
	}
	lines := strings.Split(strings.TrimSpace(string(got)), "\n")
	want := []string{clusterLocalPath, "--class", "Main"}
	if len(lines) != len(want) {
		t.Fatalf("echoed lines=%v, want %v", lines, want)
	}
	for i, l := range lines {
		if l != want[i] {
			t.Errorf("line[%d]=%q, want %q", i, l, want[i])
		}
	}
}