#!/bin/bash
columns=("JOBID" "URL" "USER" "PIPENICK" "QUEUED" "STARTED" "LAST ACTIVE") # Duplicated in Python code!

function valid_column {
	local candidate="$1"
	local column
	for column in "${columns[@]}"
	do
		[[ "${candidate}" == "${column}" ]] && return 0
	done
	return 1
}

sortcolumns=()
filter=
nocolours=
notable=
while [[ $# -gt 0 ]]
do
	if [[ "$1" == "--help" || "$1" == "-h" ]]
	then
		echo "Usage: archivebot-jobs [--help|-h] [(--sort|-s) COLUMN] [(--filter|-f) COLUMN=VALUE] [--no-colours|--no-colors] [--no-table]" >&2
		echo "Prints a table of current AB jobs" >&2
		echo "Options:" >&2
		echo "  --help, -h: Show this message and exit." >&2
		echo "  --sort COLUMN: Sort the table by a column. This can be used multiple times to refine the sorting." >&2
		echo "  --filter COLUMN=VALUE: Filter the table for rows where a COLUMN has a certain VALUE. If specified multiple times, only the last value is used." >&2
		echo "  --no-colours: Don't colourise the last activity column if it's been a while." >&2
		echo "  --no-table: Raw output without feeding through column(1); columns are separated by tabs." >&2
		echo "The COLUMNs are the names of each column, printed in capital letters in the first line of the output." >&2
		exit 0
	elif [[ "$1" == "--sort" || "$1" == "-s" ]]
	then
		sortcolumns+=("$2")
		shift
	elif [[ "$1" == "--filter" || "$1" == "-f" ]]
	then
		filter="$2"
		shift
	elif [[ "$1" == "--no-colours" || "$1" == "--no-colors" ]]
	then
		nocolours=1
	elif [[ "$1" == "--no-table" ]]
	then
		notable=1
	else
		echo "Unknown option: $1" >&2
		exit 1
	fi
	shift
done

# Validate sortcolumns and filter
if [[ "${filter}" ]]
then
	if [[ ! "${filter}" == *=* ]]
	then
		echo "Invalid filter: ${filter}" >&2
		exit 1
	fi
	if [[ "${filter}" == *$'\n'* ]]
	then
		echo "Invalid filter: newlines not allowed" >&2
		exit 1
	fi
	column="${filter%%=*}"
	if ! valid_column "${column}"
	then
		echo "Invalid filter column: ${column}" >&2
		exit 1
	fi
fi
if [[ ${#sortcolumns[@]} -gt 0 ]]
then
	for column in "${sortcolumns[@]}"
	do
		if ! valid_column "${column}"
		then
			echo "Invalid sort column: ${column}" >&2
			exit 1
		fi
	done
else
	# Default sort order
	sortcolumns+=("JOBID")
fi

if [[ "${notable}" ]]
then
	column=("cat")
else
	column=("column" "-t" $'-s\t')
fi

jobdata="$(curl -s -H "Accept: application/json" "http://dashboard.at.ninjawedding.org/logs/recent?count=1" 2>/dev/null)"
pipelinedata="$(curl -s -H "Accept: application/json" "http://dashboard.at.ninjawedding.org/pipelines" 2>/dev/null)"

if [[ -z "${jobdata}" || -z "${pipelinedata}" ]]
then
	echo "Error retrieving job or pipeline data" >&2
	exit 1
fi

{ echo "${jobdata}"; echo "${pipelinedata}"; echo "${filter}"; } | python3 -c \
'
if True: # For sensible indentation
	import json
	import sys
	import time

	def time_ago(diff):
		if diff <= 0:
			return "now"
		elif diff < 60:
			return "<1 min ago"
		elif diff < 86400:
			return (f"{diff // 3600:.0f}h " if diff >= 3600 else "") + f"{(diff % 3600) // 60:.0f}mn ago"
		else:
			return f"{diff // 86400:.0f}d {(diff % 86400) // 3600:.0f}h ago"

	def coloured_time_ago(diff):
		if diff >= 300:
			return "\x1b[0;31m" + time_ago(diff) + "\x1b[0m"
		else:
			return time_ago(diff)

	jobdata = json.loads(sys.stdin.readline())
	pipelinedata = json.loads(sys.stdin.readline())
	filter = sys.stdin.readline().strip()

	pipelines = {p["id"]: p["nickname"] for p in pipelinedata["pipelines"]}

	columns = ("JOBID", "URL", "USER", "PIPENICK", "QUEUED", "STARTED", "LAST ACTIVE") # Duplicated in Bash code!
	jobs = []
	currentTime = time.time()
	for j in jobdata:
		jobs.append([
			j["job_data"]["ident"],
			j["job_data"]["url"],
			j["job_data"]["started_by"],
			pipelines[j["job_data"]["pipeline_id"]] if j["job_data"]["pipeline_id"] in pipelines else "unknown",
			currentTime - j["job_data"]["queued_at"],
			currentTime - j["job_data"]["started_at"],
			currentTime - j["ts"],
		])

	# Filter
	if filter:
		column, value = filter.split("=", 1)
		assert column in columns
		columnIdx = columns.index(column)
		jobs = [job for job in jobs if job[columnIdx] == value]

	# Sort
	sortColumns = ('"$(printf "'%s', " "${sortcolumns[@]}")"')
	assert all(column in columns for column in sortColumns)
	sortColumnIdxs = tuple(columns.index(column) for column in sortColumns)
	jobs = sorted(jobs, key = lambda job: tuple(job[columnIdx] for columnIdx in sortColumnIdxs))

	# Print
	print("\t".join(columns))
	for job in jobs:
		job[4] = time_ago(job[4])
		job[5] = time_ago(job[5])
		job[6] = (coloured_time_ago if not "'${nocolours}'" else time_ago)(job[6])
		print("\t".join(job))
' | "${column[@]}"