#!/bin/bash
# Task ID → Template number mapping.
# Sourced by other scripts. Provides task_template() and task_wave().

# Template mapping: task ID → template number
# Template 1: XEvent* → WMEvent* signature change
# Template 2: _x11_raw elimination
# Template 3: Xlib → wm_backend vtable
# Template 4: Guard X11 block in WINGs (if scr->display)
# Template 5: Split into _x11/_wl pair
# Template 6: Xlib drawing → WINGs render backend
# Template 7: Remove #ifdef guard
# Template 8: WPrefs.app Xlib → WINGs API
# Template 9: Verification only

declare -A TASK_TEMPLATE=(
    # Phase F: wrlib
    [F.2]=9  [F.3]=9  [F.4]=9  [F.5]=4

    # Phase A: Core Window Management
    [A4.1]=7
    [A5.1]=1  [A5.2]=2

    # Phase B: Dock & App Icons
    [B.1]=3  [B.2]=7  [B.3]=1

    # Phase C: Visual Polish
    [C.1]=3  [C.3]=9

    # Phase D: WINGs Widget Porting
    [D.1]=4  [D.2]=4  [D.3]=5  [D.4]=6  [D.5]=5  [D.6]=5
    [D.7]=6  [D.8]=6  [D.9]=6  [D.10]=6  [D.11]=4  [D.12]=6

    # Phase E: Dialogs & Panels
    [E.1]=2  [E.2]=2  [E.3]=1  [E.4]=1
    [E.5a]=8  [E.5b]=8  [E.5c]=8  [E.5d]=8  [E.5e]=8
    [E.5f]=8  [E.5g]=8  [E.5h]=8  [E.5i]=8  [E.5j]=8  [E.5k]=8

    # Phase G: Session & Persistence
    [G.1]=9  [G.2]=3

    # Phase I: EWMH / Foreign Toplevel
    [I.1]=9  [I.2]=9

    # Phase H: Advanced Compositor
    [H.1]=7  [H.5]=9

    # Remaining src/ cleanup
    [R.1]=2  [R.2]=2  [R.3]=2  [R.4]=3  [R.5]=3
    [R.6]=7  [R.7]=7
)

# Wave assignments
declare -A TASK_WAVE=(
    # Immediate
    [F.2]=0  [F.3]=0  [F.4]=0  [F.5]=0

    # Wave 1
    [A4.1]=1  [A5.1]=1  [B.1]=1  [B.2]=1  [B.3]=1
    [C.1]=1  [C.3]=1
    [D.1]=1  [D.3]=1  [D.5]=1  [D.6]=1  [D.10]=1  [D.11]=1  [D.12]=1
    [E.3]=1  [E.4]=1
    [G.1]=1  [G.2]=1
    [I.1]=1  [I.2]=1
    [H.1]=1  [H.5]=1
    [R.1]=1  [R.2]=1  [R.3]=1  [R.4]=1  [R.5]=1  [R.6]=1  [R.7]=1

    # Wave 2
    [A5.2]=2  [D.2]=2  [D.4]=2  [D.7]=2  [D.8]=2  [D.9]=2
    [E.1]=2  [E.2]=2

    # Wave 3
    [E.5a]=3  [E.5b]=3  [E.5c]=3  [E.5d]=3  [E.5e]=3
    [E.5f]=3  [E.5g]=3  [E.5h]=3  [E.5i]=3  [E.5j]=3  [E.5k]=3
)

# Blocker mapping: task ID → space-separated list of prerequisite task IDs
declare -A TASK_BLOCKERS=(
    [F.3]="F.2"
    [F.5]="F.2"
    [A5.2]="A5.1"
    [D.2]="D.1"  [D.4]="D.1"  [D.7]="D.1"
    [D.8]="D.5"  [D.9]="D.5"
    [E.2]="B.3 E.3"
    [E.5a]="D.1 D.2 D.3 D.4 D.5 D.6 D.7 D.8 D.9 D.10"
    [E.5b]="D.1 D.2 D.3 D.4 D.5 D.6 D.7 D.8 D.9 D.10"
    [E.5c]="D.1 D.2 D.3 D.4 D.5 D.6 D.7 D.8 D.9 D.10"
    [E.5d]="D.1 D.2 D.3 D.4 D.5 D.6 D.7 D.8 D.9 D.10"
    [E.5e]="D.1 D.2 D.3 D.4 D.5 D.6 D.7 D.8 D.9 D.10"
    [E.5f]="D.1 D.2 D.3 D.4 D.5 D.6 D.7 D.8 D.9 D.10"
    [E.5g]="D.1 D.2 D.3 D.4 D.5 D.6 D.7 D.8 D.9 D.10"
    [E.5h]="D.1 D.2 D.3 D.4 D.5 D.6 D.7 D.8 D.9 D.10"
    [E.5i]="D.1 D.2 D.3 D.4 D.5 D.6 D.7 D.8 D.9 D.10"
    [E.5j]="D.1 D.2 D.3 D.4 D.5 D.6 D.7 D.8 D.9 D.10"
    [E.5k]="D.1 D.2 D.3 D.4 D.5 D.6 D.7 D.8 D.9 D.10"
)

# Template names for display
declare -A TEMPLATE_NAME=(
    [1]="Signature XEvent*→WMEvent*"
    [2]="Eliminate _x11_raw"
    [3]="Xlib→wm_backend vtable"
    [4]="Guard X11 block (if scr->display)"
    [5]="Split into _x11/_wl pair"
    [6]="Xlib drawing→render backend"
    [7]="Remove #ifdef guard"
    [8]="WPrefs Xlib→WINGs API"
    [9]="Verification only"
)

# Get all task IDs in a stable order
task_all_ids() {
    printf '%s\n' "${!TASK_TEMPLATE[@]}" | sort -t. -k1,1 -k2,2n
}

# Check if a task is done
task_is_done() {
    local id="$1" done_file="$2"
    [ -f "$done_file" ] && grep -qxF "$id" "$done_file"
}

# Check if a task is unblocked (all blockers done)
task_is_unblocked() {
    local id="$1" done_file="$2"
    local blockers="${TASK_BLOCKERS[$id]:-}"
    [ -z "$blockers" ] && return 0
    for dep in $blockers; do
        task_is_done "$dep" "$done_file" || return 1
    done
    return 0
}