module playbook

import freeflowuniverse.herolib.core.base
import freeflowuniverse.herolib.core.texttools
import freeflowuniverse.herolib.data.paramsparser
import crypto.blake2b

@[heap]
pub struct PlayBook {
pub mut:
	actions    []&Action
	priorities map[int][]int // first key is the priority, the list of int's is position in list self.actions
	othertext  string        // in case there is text outside of the actions
	result     string        // if any result
	nractions  int
	done       []int // which actions did we already find/run?
	path       string
	session    &base.Session @[skip; str: skip]
}

@[params]
pub struct ActionNewArgs {
pub mut:
	cid      string
	name     string
	actor    string
	priority int = 10 // 0 is highest, do 10 as default
	// run    bool = true // certain actions can be defined but meant to be executed directly
	actiontype ActionType
}

// add action to the book
fn (mut plbook PlayBook) action_new(args ActionNewArgs) &Action {
	plbook.nractions += 1
	mut a := Action{
		id:       plbook.nractions
		cid:      args.cid
		name:     args.name
		actor:    args.actor
		priority: args.priority
		// run: args.run
		actiontype: args.actiontype
		params:     paramsparser.Params{}
		result:     paramsparser.Params{}
	}
	plbook.actions << &a
	return &a
}

pub fn (mut plbook PlayBook) str() string {
	return plbook.heroscript() or { 'Cannot visualize playbook properly.\n${plbook.actions}' }
}

@[params]
pub struct SortArgs {
pub mut:
	prio_only bool // if true only show the actions which were prioritized before
}

// only return the actions which are not done  yet
// if filtered is set, it means we only get the ones which were prioritized before
// we ignore prio's above 49
pub fn (mut plbook PlayBook) actions_sorted(args SortArgs) ![]&Action {
	mut res := []&Action{}
	mut nrs := plbook.priorities.keys()
	nrs.sort()
	if nrs.len == 0 {
		// means sorting did not happen before
		return plbook.actions
	}
	for nr in nrs {
		if args.prio_only && nr > 49 {
			continue
		}
		action_ids := plbook.priorities[nr] or { panic('bug') }
		for id in action_ids {
			mut a := plbook.actions[id - 1] or { panic('bug in actions sorted') }
			res << a
		}
	}
	return res
}

@[params]
pub struct HeroScriptArgs {
pub mut:
	show_done bool
}

// serialize to heroscript
pub fn (mut plbook PlayBook) heroscript(args HeroScriptArgs) !string {
	mut out := ''
	for action in plbook.actions_sorted()! {
		if args.show_done == false && action.done {
			continue
		}
		out += '${action.heroscript()}\n'
	}
	// if plbook.othertext.len > 0 {
	// 	out += '${plbook.othertext}'
	// }
	out = texttools.remove_empty_js_blocks(out)
	out += '\n\n'
	return out
}

// return list of names .
// the names are normalized (no special chars, lowercase, ... )
pub fn (mut plbook PlayBook) names() ![]string {
	mut names := []string{}
	for action in plbook.actions_sorted()! {
		names << action.name
	}
	return names
}

// @[params]
// pub struct ActionGetArgs {
// pub mut:
// 	id         int
// 	actor      string
// 	name       string
// 	filter string
// 	actiontype ActionType = .sal
// }

// // Find all actions based on ActionGetArgs
// // - If id == 0, then matches all ids; when id is specified, can only return 1.
// // - If actor == "", then matches all actors.
// // - If name == "", then matches all actions from the defined actor (if defined).
// // - If actiontype == .unknown, then matches all action types; when specified, filters by the action type, default .sal
// pub fn (mut plbook PlayBook) find(args ActionGetArgs) ![]&Action {
// 	mut res := []&Action{}
// 	for a in plbook.actions {
// 		// If id is specified, return only the action with that id
// 		if args.id != 0 {
// 			if a.id == args.id {
// 				return [a]
// 			}
// 			continue
// 		}
// 		// Filter by actor if specified
// 		if args.actor.len > 0 && a.actor != args.actor {
// 			continue
// 		}
// 		// Filter by name if specified
// 		if args.name.len > 0 && a.name != args.name {
// 			continue
// 		}
// 		// Filter by actiontype if specified
// 		if args.actiontype != .unknown && a.actiontype != args.actiontype {
// 			continue
// 		}
// 		// If the action passes all filters, add it to the result
// 		res << a
// 	}
// 	return res
// }

// pub fn (mut plbook PlayBook) action_exists(args ActionGetArgs) bool {
// 	// Use actions_find to get the filtered actions
// 	actions := plbook.actions_find(args) or { return false }
// 	if actions.len == 1 {
// 		return true
// 	} else if actions.len == 0 {
// 		return false
// 	} else {
// 		return false
// 	}
// }

// @[deprecated: "Use plbook.get(filter: 'actor.name') or plbook.get(id: id) instead."]
// pub fn (mut plbook PlayBook) action_get(args ActionGetArgs) !&Action {
// 	if args.id != 0 {
// 		return plbook.actions[args.id-1] or { panic("bug in action get") }
// 	}
// 	return plbook.get(filter: '${args.actor}.${args.name}')!
// }

pub fn (plbook PlayBook) hashkey() string {
	mut out := []string{}
	for action in plbook.actions {
		out << action.hashkey()
	}
	txt := out.join_lines()
	bs := blake2b.sum160(txt.bytes())
	return bs.hex()
}

// check if plbook is empty,if not will give error, means there are actions left to be exected
pub fn (mut plbook PlayBook) empty_check() ! {
	mut actions := []&Action{}
	for a in plbook.actions {
		if a.done == false {
			actions << a
		}
	}
	if actions.len > 0 {
		msg := plbook.heroscript(show_done: false)!
		return error('There are actions left to execute, see below:\n\n${msg}\n\n')
	}
}