#!/usr/bin/env bash
#
# Update a single wiki page from a local file.
# Usage: ./wiki-put-page.sh <page_name> <file_path>
# Example: ./wiki-put-page.sh Home docs/README.md
# Requires GITEA_TOKEN or .secrets/gitea-issues/token.
#
set -euo pipefail

GITEA_ISSUES_DIR="${GITEA_ISSUES_DIR:-$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)}"
# shellcheck source=lib.sh
source "${GITEA_ISSUES_DIR}/lib.sh"

REPO_PATH="/repos/${GITEA_REPO_OWNER}/${GITEA_REPO_NAME}"
GITEA_WIKI_REF="${GITEA_WIKI_REF:-master}"
WIKI_PAGE="${REPO_PATH}/wiki/page"
WIKI_NEW="${REPO_PATH}/wiki/new"

if [[ $# -lt 2 ]]; then
	log_err "Usage: $0 <page_name> <file_path>"
	exit 1
fi

PAGE_NAME="$1"
FILE_PATH="$2"
[[ -f "$FILE_PATH" ]] || { log_err "File not found: $FILE_PATH"; exit 1; }

load_gitea_token || exit 1
require_jq || exit 1

content="$(cat "$FILE_PATH")"
content_b64="$(echo -n "$content" | base64 -w 0)"
msg="Update from $FILE_PATH"

resp="$(gitea_api_get "${REPO_PATH}/wiki/page/${PAGE_NAME}?ref=${GITEA_WIKI_REF}")"
if echo "$resp" | jq -e .title &>/dev/null; then
	log_info "PATCH ${PAGE_NAME}"
	body="$(jq -n --arg title "$PAGE_NAME" --arg content "$content_b64" --arg msg "$msg" '{ title: $title, content_base64: $content, message: $msg }')"
	gitea_api_patch "${WIKI_PAGE}/${PAGE_NAME}?ref=${GITEA_WIKI_REF}" "$body"
else
	log_info "POST ${PAGE_NAME}"
	body="$(jq -n --arg title "$PAGE_NAME" --arg content "$content_b64" --arg msg "$msg" '{ title: $title, content_base64: $content, message: $msg }')"
	gitea_api_post "${WIKI_NEW}" "$body"
fi

log_info "Done: ${PAGE_NAME}"