#!/usr/bin/env bash
# End-to-end test: logs in, submits the post form, verifies entry is created on disk.
# Requires GRAV_TEST_USER and GRAV_TEST_PASS (set in .env or environment).
# Cleans up the test entry after the test.
set -euo pipefail

BASE_URL="${GRAV_BASE_URL:-http://localhost:8081}"
USER="${GRAV_TEST_USER:-}"
PASS="${GRAV_TEST_PASS:-}"
TRACKER="user/pages/01.trips/japan-korea-2026/01.dailies"
COOKIE_JAR="$(mktemp /tmp/grav-test-cookies.XXXXXX)"
PASS_COUNT=0
FAIL_COUNT=0
TEST_SLUG=""

cleanup() {
    rm -f "$COOKIE_JAR"
    if [ -n "$TEST_SLUG" ] && [ -d "$TRACKER/$TEST_SLUG" ]; then
        # Entry files are created by www-data inside Docker; use docker exec to remove
        if docker exec intotheeast_grav rm -rf "/var/www/html/$TRACKER/$TEST_SLUG" 2>/dev/null; then
            echo "  [cleanup] Removed test entry: $TEST_SLUG"
        else
            rm -rf "$TRACKER/$TEST_SLUG" 2>/dev/null || \
                echo "  [cleanup] Warning: could not remove $TEST_SLUG (permission denied — remove manually)"
        fi
    fi
}
trap cleanup EXIT

ok()   { echo "  ✓ $1"; PASS_COUNT=$((PASS_COUNT+1)); }
fail() { echo "  ✗ $1"; FAIL_COUNT=$((FAIL_COUNT+1)); }
die()  { echo ""; echo "FATAL: $1"; exit 1; }

echo ""
echo "Post form integration test — $BASE_URL"
echo "────────────────────────────────────────"

[ -n "$USER" ] || die "GRAV_TEST_USER not set. Add it to .env"
[ -n "$PASS" ] || die "GRAV_TEST_PASS not set. Add it to .env"

# ── Step 1: get login page + nonce ───────────────────────────────────────────
LOGIN_HTML=$(curl -sf -c "$COOKIE_JAR" -b "$COOKIE_JAR" "$BASE_URL/login") \
    || die "Could not reach $BASE_URL/login"

LOGIN_NONCE=$(echo "$LOGIN_HTML" | grep -o 'name="login-form-nonce" value="[^"]*"' | head -1 | sed 's/.*value="\([^"]*\)".*/\1/')
[ -n "$LOGIN_NONCE" ] || die "Could not extract login form nonce — is the site running?"

# ── Step 2: log in ───────────────────────────────────────────────────────────
LOGIN_STATUS=$(curl -sf -o /dev/null -w "%{http_code}" \
    -c "$COOKIE_JAR" -b "$COOKIE_JAR" \
    -L \
    -d "username=${USER}&password=${PASS}&login-form-nonce=${LOGIN_NONCE}&task=login.login" \
    "$BASE_URL/login")

# After login, fetch /post and verify we see the post form (not the login form)
# /post returns 200 for both auth and unauth users — check for form-nonce to confirm login
POST_CHECK_HTML=$(curl -sf -c "$COOKIE_JAR" -b "$COOKIE_JAR" "$BASE_URL/post") \
    || die "Could not reach $BASE_URL/post"

POST_STATUS=$(echo "$POST_CHECK_HTML" | grep -c 'name="form-nonce"' || true)
[ "$POST_STATUS" -gt 0 ] && ok "Login succeeded and /post is accessible" \
    || die "Login failed (post form not visible) — check GRAV_TEST_USER / GRAV_TEST_PASS"

# ── Step 3: extract post form nonce from already-fetched HTML ────────────────
POST_HTML="$POST_CHECK_HTML"

POST_NONCE=$(echo "$POST_HTML" | grep -o 'name="form-nonce" value="[^"]*"' | head -1 | sed 's/.*value="\([^"]*\)".*/\1/')
[ -n "$POST_NONCE" ] || die "Could not extract post form nonce"
ok "Post form loaded and nonce extracted"

# ── Step 4: submit test entry ────────────────────────────────────────────────
TEST_TITLE="Automated Test Entry"
TEST_DATE=$(date "+%Y-%m-%d %H:%M")
TEST_SLUG_EXPECTED=$(date "+%Y-%m-%d-%H%M")-automated-test-entry

SUBMIT_BODY=$(curl -sf \
    -c "$COOKIE_JAR" -b "$COOKIE_JAR" \
    -d "data[title]=${TEST_TITLE}" \
    -d "data[date]=${TEST_DATE}" \
    -d "data[content]=This+is+an+automated+test+entry.+Safe+to+delete." \
    -d "data[location_city]=Test+City" \
    -d "data[location_country]=Test+Country" \
    -d "form-nonce=${POST_NONCE}" \
    -d "task=process" \
    "$BASE_URL/post")

ok "Form submitted"

# ── Step 5: verify entry exists on disk ─────────────────────────────────────
sleep 1  # give Grav a moment to write the file

# Find an entry containing the test title — search all .md and .en.md files
# add-page-by-form may produce date-based slugs in various formats
ENTRY_FILE=$(grep -rl "$TEST_TITLE" "$TRACKER" --include="*.md" 2>/dev/null | head -1)

if [ -n "$ENTRY_FILE" ]; then
    TEST_SLUG=$(basename "$(dirname "$ENTRY_FILE")")
    ok "Entry created on disk: $TEST_SLUG"

    # Verify file name is entry.md or entry.en.md (template-named file)
    ENTRY_BASENAME=$(basename "$ENTRY_FILE")
    if [ "$ENTRY_BASENAME" = "entry.md" ] || [ "$ENTRY_BASENAME" = "entry.en.md" ]; then
        ok "Entry file exists: $ENTRY_BASENAME"
    else
        fail "Entry file has unexpected name: $ENTRY_BASENAME (expected entry.md or entry.en.md)"
    fi

    # Verify the title is in the frontmatter
    if grep -q "$TEST_TITLE" "$ENTRY_FILE"; then
        ok "Title appears in entry frontmatter"
    else
        fail "Title not found in $ENTRY_BASENAME — frontmatter may be malformed"
    fi
else
    fail "No entry created on disk — form processing failed silently"
    echo "    Searched $TRACKER for files containing: $TEST_TITLE"
fi

# ── Result ───────────────────────────────────────────────────────────────────
echo "────────────────────────────────────────"
echo "  $PASS_COUNT passed, $FAIL_COUNT failed"
echo ""

[ $FAIL_COUNT -eq 0 ]