package render_test

import (
	"bytes"
	"os"
	"strings"
	"testing"
)

// Check reports on the writer it is given. Directories a first render
// would create and sections naming absent repositories are warnings only.
func TestCheckWarnings(t *testing.T) {
	e := newEnv(t, "proj", "sections:\n  - title: Tools\n    repos: [proj, missing]\n")
	var out bytes.Buffer
	if err := e.site.Check(&out, "repo-render.yaml"); err != nil {
		t.Fatalf("Check: %v\n%s", err, out.String())
	}
	mustContain(t, "report", out.String(), "git: ", "config: repo-render.yaml\n",
		"warning: "+e.site.Lay.Htdocs+" does not exist yet",
		`warning: section "Tools" lists "missing"`, "\nok\n")
	mustNotContain(t, "report", out.String(), `lists "proj"`, "warning: "+e.site.Lay.GitBase+" ")
}

// A lexer that resolves to plain text, and git failing, are problems.
func TestCheckProblems(t *testing.T) {
	e := newEnv(t, "proj", "lexers:\n  plaintext:\n    globs: [\"*.txt\"]\n  go:\n    globs: [\"*.go\"]\n")
	var out bytes.Buffer
	err := e.site.Check(&out, "repo-render.yaml")
	if err == nil || !strings.Contains(err.Error(), `lexer "plaintext" resolves to plain text`) {
		t.Errorf("Check = %v, want the plaintext lexer reported", err)
	}
	mustContain(t, "report", out.String(), "lexer go: ok")
	mustNotContain(t, "report", out.String(), "\nok\n")

	// git cannot start in a git_dir that is gone.
	e = newEnv(t, "proj", "")
	if err := os.RemoveAll(e.site.Lay.GitBase); err != nil {
		t.Fatal(err)
	}
	out.Reset()
	err = e.site.Check(&out, "repo-render.yaml")
	if err == nil || !strings.Contains(err.Error(), "git cannot run inside "+e.site.Lay.GitBase) {
		t.Errorf("Check without git_dir = %v", err)
	}
	mustNotContain(t, "report", out.String(), "\nok\n")
}