#!/bin/bash
# issue-list.sh - List issues on Gitea or GitHub
# Usage: issue-list.sh [-s state] [-l label] [-m milestone] [-a assignee]

set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "$SCRIPT_DIR/detect-platform.sh"

# Default values
STATE="open"
LABEL=""
MILESTONE=""
ASSIGNEE=""
LIMIT=30

usage() {
    cat <<EOF
Usage: $(basename "$0") [OPTIONS]

List issues from the current repository (Gitea or GitHub).

Options:
    -s, --state STATE       Filter by state: open, closed, all (default: open)
    -l, --label LABEL       Filter by label
    -m, --milestone NAME    Filter by milestone name
    -a, --assignee USER     Filter by assignee
    -n, --limit N           Maximum issues to show (default: 30)
    -h, --help              Show this help message

Examples:
    $(basename "$0")                          # List open issues
    $(basename "$0") -s all -l bug            # All issues with 'bug' label
    $(basename "$0") -m "0.2.0"               # Issues in milestone 0.2.0
EOF
    exit 1
}

# Parse arguments
while [[ $# -gt 0 ]]; do
    case $1 in
        -s|--state)
            STATE="$2"
            shift 2
            ;;
        -l|--label)
            LABEL="$2"
            shift 2
            ;;
        -m|--milestone)
            MILESTONE="$2"
            shift 2
            ;;
        -a|--assignee)
            ASSIGNEE="$2"
            shift 2
            ;;
        -n|--limit)
            LIMIT="$2"
            shift 2
            ;;
        -h|--help)
            usage
            ;;
        *)
            echo "Unknown option: $1" >&2
            usage
            ;;
    esac
done

PLATFORM=$(detect_platform)

case "$PLATFORM" in
    github)
        CMD="gh issue list --state $STATE --limit $LIMIT"
        [[ -n "$LABEL" ]] && CMD="$CMD --label \"$LABEL\""
        [[ -n "$MILESTONE" ]] && CMD="$CMD --milestone \"$MILESTONE\""
        [[ -n "$ASSIGNEE" ]] && CMD="$CMD --assignee \"$ASSIGNEE\""
        eval "$CMD"
        ;;
    gitea)
        CMD="tea issues list --state $STATE --limit $LIMIT"
        [[ -n "$LABEL" ]] && CMD="$CMD --labels \"$LABEL\""
        # tea uses different syntax for milestone filtering
        if [[ -n "$MILESTONE" ]]; then
            MILESTONE_ID=$(tea milestones list 2>/dev/null | grep -E "^\s*[0-9]+" | grep "$MILESTONE" | awk '{print $1}' | head -1)
            if [[ -n "$MILESTONE_ID" ]]; then
                CMD="$CMD --milestones $MILESTONE_ID"
            else
                echo "Warning: Could not find milestone '$MILESTONE'" >&2
            fi
        fi
        # Note: tea may not support assignee filter directly
        eval "$CMD"
        if [[ -n "$ASSIGNEE" ]]; then
            echo "Note: Assignee filtering may require manual review for Gitea" >&2
        fi
        ;;
    *)
        echo "Error: Could not detect git platform" >&2
        exit 1
        ;;
esac